SERDP: Signature-based and energy-efficient relay discovery protocol for Internet of Things in cellular networks,International Journal of Communication Systems

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SERDP: Signature-based and energy-efficient relay discovery protocol for Internet of Things in cellular networks
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2021-06-07 , DOI: 10.1002/dac.4898
Tuğrul Çavdar ₁ , Muhammet Talha Kakız ₂ , Faruk Baturalp Günay ₃ , Nader Ebrahimpour ₁

Affiliation

With the proliferation of Internet of Things (IoT), a large number of devices are expected to connect to the Internet over different networks due to various demands and characteristics of IoT devices (IoTDs). One of the networks that will connect IoTDs to the Internet is cellular networks. The 3rd Generation Partnership Project (3GPP) proposes a connectivity model for cellular networks in which IoTDs connect to the network via relay devices. In this model, discovering the relay devices is a challenging task due to energy budget constraints, mobility of devices, and collision of discovery messages. Since IoTDs are constrained devices, it is important that they perform discovery with the minimum energy consumption by intermittently sleeping and waking up. In this paper, we propose signature-based and energy-efficient relay discovery protocol (SERDP) using Zadoff–Chu sequences. Since Zadoff–Chu is a Constant Amplitude Zero Autocorrelation (CAZAC) sequence, we use the sequence for pointing the active slots of the devices within the proposed three-stage original period structure. The probabilistic analysis and simulation results show that SERDP discovers more devices with less energy consumption as well as preventing collisions, as compared with the existing protocols.

中文翻译：

SERDP：基于签名的节能中继发现协议，用于蜂窝网络中的物联网

随着物联网 (IoT) 的普及，由于物联网设备 (IoTD) 的各种需求和特性，预计会有大量设备通过不同网络连接到互联网。将 IoTD 连接到互联网的网络之一是蜂窝网络。第三代合作伙伴计划 (3GPP) 提出了一种蜂窝网络连接模型，其中 IoTD 通过中继连接到网络设备。在该模型中，由于能量预算限制、设备的移动性和发现消息的冲突，发现中继设备是一项具有挑战性的任务。由于 IoTD 是受限设备，因此它们通过间歇性睡眠和唤醒以最低能耗执行发现非常重要。在本文中，我们提出了使用 Zadoff-Chu 序列的基于签名和节能的中继发现协议（SERDP）。由于 Zadoff-Chu 是恒定幅度零自相关 (CAZAC) 序列，我们使用该序列来指向所提出的三阶段原始周期结构内的设备的活动时隙。概率分析和仿真结果表明，与现有协议相比，SERDP 发现更多设备，能耗更低，并且可以防止冲突。

更新日期：2021-07-06

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