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  • POSE.R: Prediction-based Opportunistic Sensing for Resilient and Efficient Sensor Networks
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-11-25
    James Z. Hare; Junnan Song; Shalabh Gupta; Thomas A. Wettergren

    The article presents a distributed algorithm, called Prediction-based Opportunistic Sensing for Resilient and Efficient Sensor Networks (POSE.R), where the sensor nodes utilize predictions of the targets' positions to probabilistically control their multi-modal operating states to track the targets. There are two desired features of the algorithm: energy efficiency and resilience. If the target is

    更新日期:2020-11-27
  • Energy-efficient Dual-codebook–based Backscatter Communications for Wireless Powered Networks
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-11-17
    Yufan Zhang; Ertao Li; Yi-Hua Zhu

    The common backscatter communications (ComBC), widely applied in wireless powered networks such as the RFID systems, exhibit the shortcoming that only a few bits are backscattered at a time due to energy limitation. It is significant to improve energy efficiency in backscatter communications so more data can be delivered within one backscatter. In this article, the energy-efficient dual-codebook based

    更新日期:2020-11-17
  • SDCN: Sensory Data-Centric Networking for Building the Sensing Layer of IoT
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-11-11
    Liang Liu; Bo Chen; Huadong Ma

    Building an open global sensing layer is critical for the Internet of Things (IoT). In this article, we present a Sensory Data-Centric Networking (SDCN) architecture for inter-networking two main networked sensing systems in IoT—wireless sensor networks and mobile sensing networks. Specifically, the proposed SDCN is a systematic solution including NDNs for sensor nodes in the Zigbee network, NDNm for

    更新日期:2020-11-12
  • Reactive Jamming and Attack Mitigation over Cross-Technology Communication Links
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-11-05
    Gonglong Chen; Wei Dong

    Recently, Cross-Technology Communication (CTC), allowing the direct communication among heterogeneous devices with incompatible physical layers, has attracted much research attention. Many efficient CTC protocols have been proposed to demonstrate its promise in IoT applications. However, the applications built upon CTC will be significantly impaired when CTC suffers from malicious attacks such as jamming

    更新日期:2020-11-06
  • MORE: Multi-node Mobile Charging Scheduling for Deadline Constraints
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-11-05
    Panlong Yang; Tao Wu; Haipeng Dai; Xunpeng Rao; Xiaoyu Wang; Peng-Jun Wan; Xin He

    Due to the merit without requiring charging cable, wireless power transfer technology has drawn rising attention as a new method to replenish energy for Wireless Rechargeable Sensor Networks. In this article, we study the mobile charger scheduling problem for multi-node recharging with deadline constraints. Our target is to maximize the overall effective charging utility and minimize the traveling

    更新日期:2020-11-06
  • Dynamic Edge-coded Protocols for Low-power, Device-to-device Communication
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-11-05
    Shahzad Muzaffar; Ibrahim (Abe) M. Elfadel

    Clock and Data Recovery (CDR) has been a foundational receiver component in serial communications. Yet this component is known to add significant design complexity to the receiver and to consume significant resources in area and power. In the resource-limited world of constrained IoT nodes, the need of including CDR in the communication link is being re-assessed and new techniques for achieving reliable

    更新日期:2020-11-06
  • A Survey on Energy-Efficient Strategies in Static Wireless Sensor Networks
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-10-12
    Deyu Lin; Quan Wang; Weidong Min; Jianfeng Xu; Zhiqiang Zhang

    A comprehensive analysis on the energy-efficient strategy in static Wireless Sensor Networks (WSNs) that are not equipped with any energy harvesting modules is conducted in this article. First, a novel generic mathematical definition of Energy Efficiency (EE) is proposed, which takes the acquisition rate of valid data, the total energy consumption, and the network lifetime of WSNs into consideration

    更新日期:2020-10-12
  • Urban Scale Trade Area Characterization for Commercial Districts with Cellular Footprints
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-09-30
    Yi Zhao; Zimu Zhou; Wang Xu; Tongtong Liu; Zheng Yang

    Understanding customer mobility patterns to commercial districts is crucial for urban planning, facility management, and business strategies. Trade areas are a widely applied measure to quantify where the visitors are from. Traditional trade area analysis is limited to small-scale or store-level studies, because information such as visits to competitor commercial entities and place of residence is

    更新日期:2020-10-02
  • TinyLink: A Holistic System for Rapid Development of IoT Applications
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-09-27
    Wei Dong; Borui Li; Gaoyang Guan; Zhihao Cheng; Jiadong Zhang; Yi Gao

    Rapid development is essential for IoT (Internet of Things) application developers to obtain first-mover advantages and reduce the development cost. In this article, we present TinyLink, a holistic system for rapid development of IoT applications. The key idea of TinyLink is to use a top-down approach for designing both the hardware and the software of IoT applications. Developers write the application

    更新日期:2020-09-28
  • Dynamic Buffer Sizing for Out-of-order Event Compensation for Time-sensitive Applications
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-09-24
    Wolfgang Weiss; Víctor J. Expósito Jiménez; Herwig Zeiner

    Today’s sensor network implementations often comprise various types of nodes connected with different types of networks. These and various other aspects influence the delay of transmitting data and therefore of out-of-order data occurrences. This turns into a crucial problem in time-sensitive applications where data must be processed promptly and decisions must be reliable. In this article, we research

    更新日期:2020-09-25
  • dWatch: A Reliable and Low-Power Drowsiness Detection System for Drivers Based on Mobile Devices
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-09-16
    Tianzhang Xing; Qing Wang; Chase Q. Wu; Wei Xi; Xiaojiang Chen

    Drowsiness detection is critical to driver safety, considering thousands of deaths caused by drowsy driving annually. Professional equipment is capable of providing high detection accuracy, but the high cost limits their applications in practice. The use of mobile devices such as smart watches and smart phones holds the promise of providing a more convenient, practical, non-invasive method for drowsiness

    更新日期:2020-09-16
  • Ultra-wideband Concurrent Ranging
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-09-16
    Pablo Corbalán; Gian Pietro Picco

    We propose a novel concurrent ranging technique for distance estimation with ultra-wideband (UWB) radios. Conventional schemes assume that the necessary packet exchanges occur in isolation to avoid collisions. Concurrent ranging relies on the overlapping of replies from nearby responders to the same ranging request issued by an initiator node. As UWB transmissions rely on short pulses, the individual

    更新日期:2020-09-16
  • Pushing the Limits of Transmission Concurrency for Low Power Wireless Networks
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-09-10
    Daibo Liu; Zhichao Cao; Mengshu Hou; Huigui Rong; Hongbo Jiang

    Concurrent transmission (CT) has been widely adopted to optimize the throughput of various data transmissions in wireless networks, such as bulk data dissemination and high-rate data collection. In CT, besides the possible data frame collision at receivers, we observe that acknowledgment frame (ACK) collision at senders can also significantly diminish concurrency opportunities. In this article, to

    更新日期:2020-09-10
  • DAML: Practical Secure Protocol for Data Aggregation Based on Machine Learning
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-09-05
    Ping Zhao; Jiaxin Sun; Guanglin Zhang

    Data aggregation based on machine learning (ML), in mobile edge computing, allows participants to send ephemeral parameter updates of local ML on their private data instead of the exact data to the untrusted aggregator. However, it still enables the untrusted aggregator to reconstruct participants’ private data, although parameter updates contain significantly less information than the private data

    更新日期:2020-09-07
  • Resilience Bounds of Network Clock Synchronization with Fault Correction
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-09-05
    Linshan Jiang; Rui Tan; Arvind Easwaran

    Naturally occurring disturbances and malicious attacks can lead to faults in synchronizing the clocks of two network nodes. In this article, we investigate the fundamental resilience bounds of network clock synchronization for a system of N nodes against the peer-to-peer synchronization faults. Our analysis is based on practical synchronization algorithms with time complexity down to O(N3) that attempt

    更新日期:2020-09-07
  • Incentive Mechanisms for Crowdsensing: Motivating Users to Preprocess Data for the Crowdsourcer
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-09-01
    Zhao Liu; Kenli Li; Xu Zhou; Ningbo Zhu; Keqin Li

    Crowdsensing is a popular method that leverages a crowd of sensor users to collect data. For many crowdsensing applications, the collected raw data need to be preprocessed before further analysis, and the preprocessing work is mainly done by the crowdsourcer. However, as the amount of collected data increases, this type of preprocessing approach has many disadvantages. In this article, we construct

    更新日期:2020-09-01
  • A Query Processing Framework for Efficient Network Resource Utilization in Shared Sensor Networks
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-08-25
    Rahul Kumar Verma; K. K. Pattanaik; Sourabh Bharti; Divya Saxena; Jiannong Cao

    Shared Sensor Network (SSN) refers to a scenario where the same sensing and communication resources are shared and queried by multiple Internet applications. Due to the burgeoning growth in Internet applications, multiple application queries can exhibit overlapping in their functional requirements, such as the region of interest, sensing attributes, and sensing time duration. This overlapping results

    更新日期:2020-08-26
  • Distributed Reliable and Energy-Efficient Scheduling for LR-WPANs
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-08-25
    Tim Van Der Lee; Georgios Exarchakos; Sonia Heemstra De Groot

    Pervasiveness of wireless networks drives the heterogeneity and density of devices in a vast diversity of environments. To achieve high reliability and low energy consumption while enabling pervasiveness is inherently a resource allocation problem. In low-rate wireless personal area networks, multi-frequency time-division multiple access methods are identified as compelling solutions to resource allocation

    更新日期:2020-08-26
  • RF-AMOC: Human-related RFID Tag Movement Identification in Access Management of Carries
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-08-25
    Shaoyi Zhu; Weiqing Huang; Chenggang Jia; Siye Wang; Bowen Li; Yanfang Zhang

    The use of radio-frequency identification (RFID) technology in supply chain has been a fairly mature application in recent years, which can be extended to the field of carrier management for the inventory and access control of sensitive files and mobile storage medium. To address the inherent defects of false readings of RFID, we present RF-AMOC, a tag movement identification system that leverages

    更新日期:2020-08-26
  • Identifying Child Users via Touchscreen Interactions
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-07-28
    Yushi Cheng; Xiaoyu Ji; Xiaopeng Li; Tianchen Zhang; Sharaf Malebary; Xianshan Qu; Wenyuan Xu

    With the proliferation of smart devices, children can be easily exposed to violent or adult-only content on the Internet. Without any precaution, the premature and unsupervised use of smart devices can be harmful to both children and their parents. Thus, it is critical to employ parent patrol mechanisms such that children are restricted to child-friendly content only. A successful parent patrol strategy

    更新日期:2020-08-26
  • ACES: Automatic Configuration of Energy Harvesting Sensors with Reinforcement Learning
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-07-31
    Francesco Fraternali; Bharathan Balaji; Yuvraj Agarwal; Rajesh K. Gupta

    Many modern smart building applications are supported by wireless sensors to sense physical parameters, given the flexibility they offer and the reduced cost of deployment. However, most wireless sensors are powered by batteries today, and large deployments are inhibited by the requirement of periodic battery replacement. Energy harvesting sensors provide an attractive alternative, but they need to

    更新日期:2020-08-26
  • iSleep: A Smartphone System for Unobtrusive Sleep Quality Monitoring
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-07-21
    Xiangmao Chang; Cheng Peng; Guoliang Xing; Tian Hao; Gang Zhou

    The quality of sleep is an important factor in maintaining a healthy life style. A great deal of work has been done for designing sleep monitoring systems. However, most of existing solutions bring invasion to users more or less due to the exploration of the accelerometer sensor inside the device. This article presents iSleep—a practical system to monitor people’s sleep quality using off-the-shelf

    更新日期:2020-08-18
  • Joint Modelling of Cyber Activities and Physical Context to Improve Prediction of Visitor Behaviors
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-08-13
    Manpreet Kaur; Flora D. Salim; Yongli Ren; Jeffrey Chan; Martin Tomko; Mark Sanderson

    This article investigates the cyber-physical behavior of users in a large indoor shopping mall by leveraging anonymized (opt in) Wi-Fi association and browsing logs recorded by the mall operators. Our analysis shows that many users exhibit a high correlation between their cyber activities and their physical context. To find this correlation,propose a mechanism to semantically label a physical space

    更新日期:2020-08-18
  • SCANet: Sensor-based Continuous Authentication with Two-stream Convolutional Neural Networks
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-07-21
    Yantao Li; Hailong Hu; Zhangqian Zhu; Gang Zhou

    Continuous authentication monitors the security of a system throughout the login session on mobile devices. In this article, we present SCANet, a two-stream convolutional neural network--based continuous authentication system that leverages the accelerometer and gyroscope on smartphones to monitor users’ behavioral patterns. We are among the first to use two streams of data—frequency domain data and

    更新日期:2020-08-18
  • Quality-aware Online Task Assignment in Mobile Crowdsourcing
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-07-21
    Xin Miao; Yanrong Kang; Qiang Ma; Kebin Liu; Lei Chen

    In recent years, mobile crowdsourcing has emerged as a powerful computation paradigm to harness human power to perform spatial tasks such as collecting real-time traffic information and checking product prices in a specific supermarket. A fundamental problem of mobile crowdsourcing is: When both tasks and crowd workers appear in the platforms dynamically, how to assign an appropriate set of tasks to

    更新日期:2020-08-18
  • QoS-Aware VNF Placement and Service Chaining for IoT Applications in Multi-Tier Mobile Edge Networks
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-06-01
    Zichuan Xu; Zhiheng Zhang; Weifa Liang; Qiufen Xia; Omer Rana; Guowei Wu

    Mobile edge computing and network function virtualization (NFV) paradigms enable new flexibility and possibilities of the deployment of extreme low-latency services for Internet-of-Things (IoT) applications within the proximity of their users. However, this poses great challenges to find optimal placements of virtualized network functions (VNFs) for data processing requests of IoT applications in a

    更新日期:2020-06-01
  • CoUAS: Enable Cooperation for Unmanned Aerial Systems
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-06-01
    Ziyao Huang; Weiwei Wu; Feng Shan; Yuxin Bian; Kejie Lu; Zhenjiang Li; Jianping Wang; Jin Wang

    In the past decade, unmanned aircraft systems (UASs) have been widely used in various civilian applications, most of which involve only a single unmanned aerial vehicle (UAV). In the near future, more and more UAS applications will be facilitated by the cooperation of multiple UAVs. In such applications, it is desirable to utilize a general control platform for cooperative UAVs. However, existing open-source

    更新日期:2020-06-01
  • Latency-efficient Data Collection Scheduling in Battery-free Wireless Sensor Networks
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-05-22
    Tongxin Zhu; Jianzhong Li; Hong Gao; Yingshu Li

    The lifetime of battery-powered Wireless Sensor Networks (WSNs) are limited by the batteries equipped in sensors. The appearance of Battery-free Wireless Sensor Networks (BF-WSNs) breaks through this limitation, in which battery-free sensors harvest energy from sustainable but uncontrollable energy sources in ambient environment, such as solar power, wind power, radio frequency signal power, and so

    更新日期:2020-05-22
  • A Prospect Theoretic Approach for Trust Management in IoT Networks Under Manipulation Attacks
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-05-22
    Mehrdad Salimitari; Shameek Bhattacharjee; Mainak Chatterjee; Yaser P. Fallah

    As Internet of Things (IoT) and Cyber-Physical systems become more ubiquitous in our daily lives, it necessitates the capability to measure the trustworthiness of the aggregate data from such systems to make fair decisions. However, the interpretation of trustworthiness is contextual and varies according to the risk tolerance attitude of the concerned application. In addition, there exist varying levels

    更新日期:2020-05-22
  • Time-efficient Missing Tag Identification in an Open RFID System
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-05-10
    Yanyan Wang; Jia Liu; Xia Wang; Xingyu Chen; Yingli Yan; Lijun Chen

    Radio Frequency IDentification (RFID) technology has been widely used in missing tag identification to reduce the economic loss caused by theft. Although many advanced works have been proposed, they cannot work properly in an open RFID system with unexpected tags. That is because the unexpected tags may reply to the reader when it is the missing tags’ turn, such that the replies are mistakenly treated

    更新日期:2020-05-10
  • OPTICS: OPTimizing Irrigation Control at Scale
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-05-10
    Daniel A. Winkler; Miguel Á. Carreira-Perpiñán; Alberto E. Cerpa

    Lawns, also known as turf, cover an estimated 128,000 km2 in North America alone, with landscape requirements representing 30% of freshwater consumed in the residential domain. With this consumption comes a large amount of environmental, economic, and social incentive to make turf irrigation systems as efficient as possible. Recent work introduced the concept of distributed control in irrigation systems

    更新日期:2020-05-10
  • PC-RPL
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-04-19
    Hyung-Sin Kim; Jeongyeup Paek; David E. Culler; Saewoong Bahk

    We present PC-RPL, a transmission power-controlled IPv6 routing protocol for low-power and lossy wireless networks that significantly improves the end-to-end packet delivery performance under heavy traffic compared to the standard RPL. We show through actual design, implementation, and experiments that a multihop wireless network can achieve better throughput and routing stability when transmission

    更新日期:2020-04-19
  • ahoi
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-04-19
    Bernd-Christian Renner; Jan Heitmann; Fabian Steinmetz

    The recent development of small, cheap AUVs enables a plethora of underwater nearand inshore applications. Among these are monitoring of wind parks, detection of pollution sources, water-quality inspection, and the support of divers during disaster management. These tasks profit from online reporting, control, and AUV swarm interaction; yet they require underwater communication. Unfortunately, commercial

    更新日期:2020-04-19
  • In-Bed Body Motion Detection and Classification System
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-04-19
    Musaab Alaziz; Zhenhua Jia; Richard Howard; Xiaodong Lin; Yanyong Zhang

    In-bed motion detection and classification are important techniques that can enable an array of applications, among which are sleep monitoring and abnormal movement detection. In this article, we present a low-cost, low-overhead, and highly robust system for in-bed movement detection and classification that uses low-end load cells. To detect movements, we have designed a feature that we refer to as

    更新日期:2020-04-19
  • Securing Cyber-Physical Social Interactions on Wrist-Worn Devices
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-04-19
    Yiran Shen; Bowen Du; Weitao Xu; Chengwen Luo; Bo Wei; Lizhen Cui; Hongkai Wen

    Since ancient Greece, handshaking has been commonly practiced between two people as a friendly gesture to express trust and respect, or form a mutual agreement. In this article, we show that such physical contact can be used to bootstrap secure cyber contact between the smart devices worn by users. The key observation is that during handshaking, although belonged to two different users, the two hands

    更新日期:2020-04-19
  • H-DrunkWalk
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-04-19
    Xinlei Chen; Carlos Ruiz; Sihan Zeng; Liyao Gao; Aveek Purohit; Stefano Carpin; Pei Zhang

    Large-scale micro-aerial vehicle (MAV) swarms provide promising solutions for situational awareness in applications such as environmental monitoring, urban surveillance, search and rescue, and so on. However, these scenarios do not provide localization infrastructure and limit cost and size of on-board capabilities of individual nodes, which makes it challenging for nodes to autonomously navigate to

    更新日期:2020-04-19
  • OPCIO
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-04-19
    Xiaoyu Ji; Xinyan Zhou; Miao Xu; Wenyuan Xu; Yabo Dong

    Battery lifetime is one of the main challenges that impedes the deployment of energy-constrained wireless networks, such as unattended Internet-of-Things (IoT) systems. To prolong battery lifetime, the duty-cycle mode is utilized in many IoT systems, especially in environment monitoring Wireless Sensor Networks (WSN) and Low-Power Wide-Area Networks (LPWAN). In duty-cycle mode, devices transmit packets

    更新日期:2020-04-19
  • QA-Share
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-04-19
    Qiang Ma; Zhichao Cao; Kebin Liu; Xin Miao

    Taxi-sharing allows occupied taxis to pick up new passengers on the fly, promising to reduce waiting time for taxi riders and increase productivity for drivers. However, it becomes more difficult to strike the balance between a driver’s profit and a passenger’s quality of service (QoS). In this article, we propose QA-Share, a QoS-aware taxi-sharing system, by addressing two important challenges. First

    更新日期:2020-04-19
  • Charge-Aware Duty Cycling Methods for Wireless Systems under Energy Harvesting Heterogeneity
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-04-19
    Jianhui Zhang; Siwen Zheng; Tianhao Zhang; Mengmeng Wang; Zhi Li

    Recent works have designed systems containing tiny devices to communicate with harvested ambient energy, such as the ambient backscatter and renewable sensor networks. These systems often encounter the heterogeneity and randomness of ambient energy. Meanwhile, the energy storage unit, such as the battery or capacitor, has the inherent property of imperfect charge efficiency λ (λ ≤ 1), which is usually

    更新日期:2020-04-19
  • Route or Flood? Reliable and Efficient Support for Downward Traffic in RPL
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-02-13
    Timofei Istomin; Oana Iova; Gian Pietro Picco; Csaba Kiraly

    Modern protocols for wireless sensor networks efficiently support multi-hop upward traffic from many sensors to a collection point, a key functionality enabling monitoring applications. However, the ever-evolving scenarios involving low-power wireless devices increasingly require support also for downward traffic, e.g., enabling a controller to issue actuation commands based on the monitored data.

    更新日期:2020-02-13
  • An Energy-efficient Distributed TDMA Scheduling Algorithm for ZigBee-like Cluster-tree WSNs
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-02-13
    Aasem Ahmad; Zdenek Hanzalek

    The design of Medium Access Control (MAC) protocol for Wireless Sensor Networks (WSNs) with both limited energy consumption and data delivery time is crucial for industrial and control applications. Since Time Division Multiple Access (TDMA) MAC eliminates the collision occurrence and seeks the minimization of the number of time-slots assigned to each node, the energy consumption of the nodes is reduced

    更新日期:2020-02-13
  • BaroSense
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-02-13
    Anuj Dimri; Harsimran Singh; Naveen Aggarwal; Bhaskaran Raman; K. K. Ramakrishnan; Divya Bansal

    Traffic congestion on urban roadways is a serious problem requiring novel ways to detect and mitigate it. Determining the routes that lead to the traffic congestion segment is also vital in devising mitigation strategies. Further, crowdsourcing this information allows for use of these strategies quickly and in places where infrastructure is not available. In this work, we present an unconventional

    更新日期:2020-02-13
  • A Game-Theoretic Analysis of Energy-Depleting Jamming Attacks with a Learning Counterstrategy
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-02-13
    Federico Chiariotti; Chiara Pielli; Nicola Laurenti; Andrea Zanella; Michele Zorzi

    Jamming may become a serious threat in Internet of Things networks of battery-powered nodes, as attackers can disrupt packet delivery and significantly reduce the lifetime of the nodes. In this work, we model an active defense scenario in which an energy-limited node uses power control to defend itself from a malicious attacker, whose energy constraints may not be known to the defender. The interaction

    更新日期:2020-02-13
  • Mortar
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-02-13
    Gabe Fierro; Marco Pritoni; Moustafa Abdelbaky; Daniel Lengyel; John Leyden; Anand Prakash; Pranav Gupta; Paul Raftery; Therese Peffer; Greg Thomson; David E. Culler

    Access to large amounts of real-world data has long been a barrier to the development and evaluation of analytics applications for the built environment. Open datasets exist, but they are limited in their span (how much data is available) and context (what kind of data is available and how it is described). Evaluation of such analytics is also limited by how the analytics themselves are implemented

    更新日期:2020-02-13
  • Multisensor Adaptive Control System for IoT-Empowered Smart Lighting with Oblivious Mobile Sensors
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-02-13
    Areg Karapetyan; Sid Chi-Kin Chau; Khaled Elbassioni; Syafiq Kamarul Azman; Majid Khonji

    The Internet-of-Things (IoT) has engendered a new paradigm of integrated sensing and actuation systems for intelligent monitoring and control of smart homes and buildings. One viable manifestation is that of IoT-empowered smart lighting systems, which rely on the interplay between smart light bulbs (equipped with controllable LED devices and wireless connectivity) and mobile sensors (possibly embedded

    更新日期:2020-02-13
  • Computation Offloading with Multiple Agents in Edge-Computing–Supported IoT
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-02-13
    Shihao Shen; Yiwen Han; Xiaofei Wang; Yan Wang

    With the development of the Internet of Things (IoT) and the birth of various new IoT devices, the capacity of massive IoT devices is facing challenges. Fortunately, edge computing can optimize problems such as delay and connectivity by offloading part of the computational tasks to edge nodes close to the data source. Using this feature, IoT devices can save more resources while still maintaining the

    更新日期:2020-02-13
  • Smartphone-Based SpO 2 Measurement by Exploiting Wavelengths Separation and Chromophore Compensation
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-02-13
    Nam Bui; Anh Nguyen; Phuc Nguyen; Hoang Truong; Ashwin Ashok; Thang Dinh; Robin Deterding; Tam Vu

    Patients with respiratory diseases require frequent and accurate blood oxygen level monitoring. Existing techniques, however, either need a dedicated hardware or fail to predict low saturation levels. To fill in this gap, we propose a phone-based oxygen level estimation system, called PhO2, using camera and flashlight functions that are readily available on today’s off-the-shelf smartphones. Since

    更新日期:2020-02-13
  • Driving Lane Detection on Smartphones using Deep Neural Networks
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-02-13
    Ravi Bhandari; Akshay Uttama Nambi; Venkata N. Padmanabhan; Bhaskaran Raman

    Current smartphone-based navigation applications fail to provide lane-level information due to poor GPS accuracy. Detecting and tracking a vehicle’s lane position on the road assists in lane-level navigation. For instance, it would be important to know whether a vehicle is in the correct lane for safely making a turn, or whether the vehicle’s speed is compliant with a lane-specific speed limit. Recent

    更新日期:2020-02-13
  • An Urban Mobility Model with Buildings Involved
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-02-13
    Zimu Zheng; Feng Wang; Dan Wang; Liang Zhang

    Urban Mobility Models (UMMs) are fundamental tools for estimating the population in urban sites and their spatial movements over time. Most existing UMMs were developed primarily in 2D. However, we argue that people’s movements and living patterns involve 3D space, i.e., buildings, which can heavily affect the accuracy of UMMs. In this article, we for the first time conduct a comprehensive study on

    更新日期:2020-02-13
  • Smart Sensing, Communication, and Control in Perishable Food Supply Chain
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-02-13
    Amitangshu Pal; Krishna Kant

    Transportation and distribution (T8D) of fresh food products is a substantial and increasing part of the economic activities throughout the world. Unfortunately, fresh food T8D not only suffers from significant spoilage and waste, but also from dismal efficiency due to tight transit timing constraints between the availability of harvested food until its delivery to the retailer. Fresh food is also

    更新日期:2020-02-13
  • Dynamic Task-based Intermittent Execution for Energy-harvesting Devices
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2020-02-13
    Amjad Yousef Majid; Carlo Delle Donne; Kiwan Maeng; Alexei Colin; Kasim Sinan Yildirim; Brandon Lucia; Przemysław Pawełczak

    Energy-neutral Internet of Things requires freeing embedded devices from batteries and powering them from ambient energy. Ambient energy is, however, unpredictable and can only power a device intermittently. Therefore, the paradigm of intermittent execution is to save the program state into non-volatile memory frequently to preserve the execution progress. In task-based intermittent programming, the

    更新日期:2020-02-13
  • DICTUM
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2019-10-24
    Daniel A. Winkler; Robert Wang; Francois Blanchette; Miguel Á. Carreira-Perpiñán; Alberto E. Cerpa

    Lawns make up the largest irrigated crop by surface area in North America and carry with it a demand for over 7B gallons of freshwater each day. Despite recent developments in irrigation control and sprinkler technology, state-of-the-art irrigation systems do nothing to compensate for areas of turf with heterogeneous water needs. In this work, we overcome the physical limitations of the traditional

    更新日期:2019-10-24
  • Dominating Sets Construction in RF-based Battery-free Sensor Networks with Full Coverage Guarantee
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2019-10-24
    Tuo Shi; Siyao Cheng; Jianzhong Li; Hong Gao; Zhipeng Cai

    A new network architecture, named as RF-based battery-free sensor network, was proposed in recent years to overcome the lifetime limitation of traditional wireless sensor networks. In an RF-based battery-free sensor network, the battery-free nodes equip no battery and can be recharged by RF-signals. The Dominating Set (DS) is a key method to maintain the coverage of traditional WSNs, and it can be

    更新日期:2019-10-24
  • One-Hop Out-of-Band Control Planes for Multi-Hop Wireless Sensor Networks
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2019-10-24
    Chaojie Gu; Rui Tan; Xin Lou

    Separation of Control and Data Planes (SCDP) is a desirable paradigm for low-power multi-hop wireless sensor networks requiring high network performance and manageability. Existing SCDP networks generally adopt an in-band control plane scheme in that the control-plane messages are delivered by their data-plane networks. The physical coupling of the two planes may lead to undesirable consequences. Recently

    更新日期:2019-10-24
  • Towards Profit Optimization During Online Participant Selection in Compressive Mobile Crowdsensing
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2019-10-24
    Yueyue Chen; Deke Guo; MD Zakirul Alam Bhuiyan; Ming Xu; Guojun Wang; Pin Lv

    A mobile crowdsensing (MCS) platform motivates employing participants from the crowd to complete sensing tasks. A crucial problem is to maximize the profit of the platform, i.e., the charge of a sensing task minus the payments to participants that execute the task. In this article, we improve the profit via the data reconstruction method, which brings new challenges, because it is hard to predict the

    更新日期:2019-10-24
  • Robust Optimal Selection of Radio Type and Transmission Power for Internet of Things
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2019-10-24
    Di Mu; Yunpeng Ge; Mo Sha; Steve Paul; Niranjan Ravichandra; Souma Chowdhury

    Research efforts over the last few decades produced multiple wireless technologies, which are readily available to support communication between devices in various dynamic Internet of Things (IoT) and robotics applications. However, single radio technology can hardly deliver optimal performance across all critical quality of service (QoS) dimensions under the typically varying environmental conditions

    更新日期:2019-10-24
  • Efficient Indoor Localization Based on Geomagnetism
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2019-10-24
    Hang Wu; Ziliang Mo; Jiajie Tan; Suining He; S.-H. Gary Chan

    Geomagnetism is promising for indoor localization due to its omnipresence, high stability, and availability of magnetometers in smartphones. Previous works often fuse it with pedometer via particles, which are computationally intensive and make strong user behavior assumptions. To overcome that, we propose Magil, an approach leveraging geomagnetism for indoor localization. To our best knowledge, this

    更新日期:2019-10-24
  • Water Flow Driven Sensor Networks for Leakage and Contamination Monitoring in Distribution Pipelines
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2019-10-24
    Amitangshu Pal; Krishna Kant

    In this article, we introduce the concept of Water Flow Driven Sensor Networks for leakage and contamination monitoring in urban water distribution systems. The unique aspect of our work is that the sensor network can be deployed in the underground water network with only access to connection points (through manholes) and driven only by water harvested energy without the need for AC power or frequent

    更新日期:2019-10-24
  • Fast Charging Scheduling under the Nonlinear Superposition Model with Adjustable Phases
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2019-10-24
    Zhi Ma; Sheng Zhang; Jie Wu; Zhuzhong Qian; Yanchao Zhao; Sanglu Lu

    Wireless energy transfer has been widely studied in recent decades, with existing works mainly focused on maximizing network lifetime, optimizing charging efficiency, and optimizing charging quality. All these works use a charging model with the linear superposition, which may not be the most accurate. We apply a nonlinear superposition model, and we consider the Fast Charging Scheduling problem (FCS):

    更新日期:2019-10-24
  • Blind Joint 2-D DOA/Symbols Estimation for 3-D Millimeter Wave Massive MIMO Communication Systems
    ACM Trans. Sens. Netw. (IF 2.469) Pub Date : 2019-10-24
    Chung Buiquang; Zhongfu Ye

    By using a large number of antenna (sensor) elements at the receivers, massive multi-input multi-output (MIMO) offers many benefits for 5G communication systems, such as a huge spectral efficiency gain, significant reduction of latency, and robustness to interference. However, to get these benefits of massive MIMO, accuracy of the channel state information obtained at the transmitter is required. This

    更新日期:2019-10-24
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