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使用基于分层能量树的路由算法延长与固定网络互连的无线传感器网络的寿命。

Prolonging the lifetime of wireless sensor networks interconnected to fixed network using hierarchical energy tree based routing algorithm.

作者信息

Kalpana M, Dhanalakshmi R, Parthiban P

机构信息

Department of Communication Systems, Sethu Institute of Technology, Virudhunagar 626 115, India.

HCL Technologies, Chennai, India.

出版信息

ScientificWorldJournal. 2014;2014:158420. doi: 10.1155/2014/158420. Epub 2014 Oct 27.

DOI:10.1155/2014/158420
PMID:25535626
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4227355/
Abstract

This research work proposes a mathematical model for the lifetime of wireless sensor networks (WSN). It also proposes an energy efficient routing algorithm for WSN called hierarchical energy tree based routing algorithm (HETRA) based on hierarchical energy tree constructed using the available energy in each node. The energy efficiency is further augmented by reducing the packet drops using exponential congestion control algorithm (TCP/EXP). The algorithms are evaluated in WSNs interconnected to fixed network with seven distribution patterns, simulated in ns2 and compared with the existing algorithms based on the parameters such as number of data packets, throughput, network lifetime, and data packets average network lifetime product. Evaluation and simulation results show that the combination of HETRA and TCP/EXP maximizes longer network lifetime in all the patterns. The lifetime of the network with HETRA algorithm has increased approximately 3.2 times that of the network implemented with AODV.

摘要

这项研究工作提出了一种用于无线传感器网络（WSN）寿命的数学模型。它还基于利用每个节点中的可用能量构建的分层能量树，为WSN提出了一种名为基于分层能量树的路由算法（HETRA）的节能路由算法。通过使用指数拥塞控制算法（TCP/EXP）减少数据包丢弃，进一步提高了能量效率。这些算法在与固定网络互连的具有七种分布模式的WSN中进行评估，在ns2中进行模拟，并与基于数据包数量、吞吐量、网络寿命和数据包平均网络寿命乘积等参数的现有算法进行比较。评估和模拟结果表明，HETRA和TCP/EXP的组合在所有模式下都能使网络寿命最大化。采用HETRA算法的网络寿命比采用AODV实现的网络寿命增加了约3.2倍。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30b8/4227355/10b320049e1b/TSWJ2014-158420.alg.001.jpg
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