收稿日期: 2009-04-07
修回日期: 2009-08-22
网络出版日期: 2010-01-25
基金资助
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)
Overhearing-Based Estimation Algorithm of Available Bandwidth in Wireless Sensor Networks
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)
陈晨 高新波 裴庆祺 . 基于串扰的无线传感器网络可用带宽估计算法[J]. 华南理工大学学报(自然科学版), 2010 , 38(1) : 54 -58 . DOI: 10.3969/j.issn.1000-565X.2010.01.011
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
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