Abstract

The effectiveness of wireless sensor network (WSN) in Internet of Thing (IoT) based large scale application depends on the deployment method along with the routing protocol. The sensor nodes are an important component of WSN-assisted IoT network running on limited and non-rechargeable energy resource. The performance of WSN-assisted IoT is decreased, when network is deployed at large area. So, developing robust and energy-efficient routing protocol is a challenging task to prolong the network lifetime. In contrast to the state-of-the-art techniques this paper introduces Scalable and energy efficient routing protocol (SEEP). SEEP leverages the multi-hop hierarchical routing scheme to minimize the energy consumption. To achieve scalable and energy efficient network, SEEP employs a multi-tier based clustering framework. The network area in SEEP is divided into various zones with the help of proposed subarea division algorithm. The number of zones in the network are increased as the network size increases to avoid long-distance communication. Every zone is divided into certain number of clusters (sub-zones) and the number of clusters are increased towards the base station, whereas the zone width is decreased. In every cluster, some of the optimal nodes are promoted as a Relay Node (RN) and Cluster Head (CH). Normal nodes send their sensed data to the base station via local RN and CH in a multi-hop way. Furthermore, propose protocol provides a trade-off between distance and energy to prolong the network lifetime. In the proposed framework, static and mobile scenarios have been considered by applying Random walk and Random waypoint model for node mobility in simulation to make it more realistic as the various application of WSN-assisted IoT. The effectiveness of SEEP is examined against LEACH, M-LEACH, EA-CRP, TDEEC, DEEC, SEP, and MIEEPB, and result indicates that SEEP performs better for different network metrics: network lifetime, scalability, and energy efficiency.

中文翻译：

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基于多层的集群框架，用于可扩展且节能的WSN辅助物联网网络

摘要

在基于物联网（IoT）的大规模应用中，无线传感器网络（WSN）的有效性取决于部署方法以及路由协议。传感器节点是在有限且不可充电的能源上运行的WSN辅助物联网网络的重要组成部分。当网络部署在较大区域时，WSN辅助物联网的性能会降低。因此，开发健壮且节能的路由协议对于延长网络寿命是一项艰巨的任务。与最新技术相反，本文介绍了可伸缩和节能路由协议（SEEP）。SEEP利用多跳分层路由方案将能耗降至最低。为了实现可扩展且节能的网络，SEEP采用了基于多层的集群框架。借助提出的分区划分算法，将SEEP中的网络区域划分为多个区域。随着网络规模的增加，网络中区域的数量也会增加，以避免长距离通信。将每个区域划分为一定数量的群集（子区域），并且朝向基站增加群集的数量，而减小区域的宽度。在每个群集中，一些最佳节点被提升为中继节点（RN）和群集头（CH）。普通节点以多跳方式通过本地RN和CH将其感测到的数据发送到基站。此外，提出的协议提供了距离和能量之间的折衷，以延长网络寿命。在提议的框架中，通过将随机行走和随机航点模型应用于仿真中的节点移动性，已经考虑了静态和移动场景，以使其在WSN辅助物联网的各种应用中更加逼真。针对LEACH，M-LEACH，EA-CRP，TDEEC，DEEC，SEP和MIEEPB检验了SEEP的有效性，结果表明SEEP在不同的网络指标（网络寿命，可扩展性和能效）方面表现更好。