Intra-cluster tone-based contention resolution mechanism for wireless sensor networks

被引：2

作者：

Jovanovic, Milica D. ^{[1
]}

Stojanovic, Igor Z. ^{[1
]}

Djosic, Sandra M. ^{[1
]}

Djordjevic, Goran Lj. ^{[1
]}

机构：

[1] Univ Nis, Fac Elect Engn, Aleksandra Medvedeva 14,POB 73, Nish 18000, Serbia

来源：

COMPUTERS & ELECTRICAL ENGINEERING | 2016年 / 56卷

关键词：

Wireless sensor networks; Energy efficiency; Intra-cluster communication; Medium access control; Contention resolution; PROTOCOLS;

D O I：

10.1016/j.compeleceng.2016.10.008

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents an energy-efficient technique for resolving intra-cluster contentions in cluster-based wireless sensor networks. The proposed technique, bit map - binary countdown (BM-BCD), provides collision-free medium access by exchanging short signal tones between the head node and member nodes of the cluster. The BM-BCD improves existing tone-based contention resolution schemes in the following two aspects. Firstly, BM-BCD overcomes the hidden terminal problem by actively involving head node into the contention resolution process. Secondly, BM-BCD introduces a novel group-splitting algorithm which improves energy efficiency of member nodes by spreading the contention resolution over all available elimination rounds. The paper also introduces a simple intra-cluster MAC protocol, named STAR-TONE, which incorporates the proposed BM-BCD, and provides an analytical model for dimensioning main protocol parameters. Our analysis, verified by simulations, demonstrates that BM-BCD reduces the power consumption during contention for up to 44.5% compared to the baseline countdown protocol under bursty traffic conditions. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：485 / 497

页数：13

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