双射频多信道802.15.4传感器网络节点性能研究  

Research on node performance of dual-radio multi-channel 802.15.4 wireless sensor network

作　　者：陆阳[1] 杨飞[1] 彭震[2] 官骏鸣[1] 

机构地区：[1]合肥工业大学计算机与信息学院,合肥230009 [2]合肥工大高科信息技术有限责任公司,合肥230088

出　　处：《电子测量与仪器学报》2009年第12期14-20,共7页Journal of Electronic Measurement and Instrumentation

基　　金：国家自然科学基金(编号:60873195)资助项目;安徽省自然科学基金(编号:070412049)资助项目

摘　　要：随着传感器网络中节点密度的增大和跳数的增加,单信道802.15.4网络容量急剧下降,一种有效的解决方法是为网络中每个节点装配多个射频。介绍了双射频多信道802.15.4传感器网络节点的设计,详细分析了链式拓扑中单跳和多跳802.15.4网络吞吐量的理论上限,最后对单跳和多跳802.15.4网络吞吐量和时延进行了实际测量。结果表明,使用多射频多信道方案能够显著提高网络性能。In single-channel wireless sensor networks of 802.15.4, the network capacity decreases rapidly as the node density and the number of hops increase. To improve this problem, a promising way is equipping each node with multiple radios. Firstly, node design of dual-radio multi-channel 802.15.4 wireless sensor network is introduced in this paper. Then a detailed analysis of the theoretical upper bounds of single-hop and multi-hop throughput for chain topology is presented. Finally the experiments are carried out to measure the practical throughput and latency of single-hop and multi-hop 802.15.4 network. Experimental results validate the distinguished network performance improvement achieved by using multi-radio multi-channel approach.

关 键 词：传感器网络 802.15.4 多射频 多信道 

分 类 号：TP393.06[自动化与计算机技术—计算机应用技术]