Journal of South China University of Technology(Natural Science) >

2010 , Vol. 38 >Issue 1: 54 - 58

DOI: https://doi.org/10.3969/j.issn.1000-565X.2010.01.011

Electronics, Communication & Automation Technology

Overhearing-Based Estimation Algorithm of Available Bandwidth in Wireless Sensor Networks

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  • 1. State Key Laboratory of Integrated Service Networks, Xidian University, Xi＇an 710071, Shaanxi, China; 2. School of Electronic Engineering, Xidian University, Xi＇an 710071, Shaanxi, China
陈晨（1977-），男，博士生，主要从事无线近距离通信、网络测量和传感器网络研究．

Received date: 2009-04-07

  Revised date: 2009-08-22

  Online published: 2010-01-25

Supported by

国家自然科学基金重点项目(60832005)；国家自然科学基金资助项目(60803151)；NSFC一广东联合基金重点项
目(U0835004)；高等学校学科创新引智计划项目(B08038)；国家“863”计划项目(2007AA01Z215)

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Abstract

Available bandwidth plays an important role in routing selection, load balance, multi-sink deployment and priority transmission in wireless sensor networks. This paper focuses on the available bandwidth and proposes an overheating-based estimation scheme of available bandwidth in S-MAC protocol-based wireless sensor networks. When the overhearing mechanism is enabled in S-MAC, the network allocation vectors stored in the RTS/CTS/DATA/ ACK packets of neighbour nodes are recorded in the buffer in the form of a table, and the available bandwidth is thus calculated. Simulated results show that the proposed method can accurately estimate the network load and cornpetition level regarding the investigated S-MAC nodes

Key words： wireless sensor network; available bandwidth; overhearing

Cite this article

Chen Chen Gao Xin-bo Pei Qing-qi . Overhearing-Based Estimation Algorithm of Available Bandwidth in Wireless Sensor Networks[J]. Journal of South China University of Technology(Natural Science), 2010 , 38(1) : 54 -58 . DOI: 10.3969/j.issn.1000-565X.2010.01.011

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