低丢包率无线传感器网络S-MAC协议的研究  

Improvement of Less Packet Loss S-MAC Protocol for Wireless Sensor Networks

作　　者：周祥云[1] 钱慧[1] 余轮[1,2] 

机构地区：[1]福州大学物理与信息工程学院,福州350002 [2]福州大学数字媒体研究院,福州350002

出　　处：《计算机科学》2011年第B10期367-369,共3页Computer Science

基　　金：国家自然科学基金(60672146)资助

摘　　要：针对S-MAC协议的层间丢包问题,利用缓存队列原理提出了一种简化通信数据分组格式的S-MAC协议优化改进方案。结合TinyOS的主动消息机制在Mica2节点上实现了改进的S-MAC协议,并对MAC层的丢包率进行了测试。实验测试结果表明,优化改进后S-MAC协议较标准S-MAC协议在MAC层的丢包率上有明显的降低,提高了网络性能。According to the packet loss problem in S-MAC protocol,this paper proposed an optimized scheme which based on the cache queue principle and simplified the format of group data for S-MAC protocol.Combined with the Active Message（AM） mechanism of TinyOS,the S-MAC protocol has been implemented on the Mica2 motes,and it has tested the packet loss ratio of MAC layer.The result demonstrates that the improved S-MAC protocol has significantly reduced than the original S-MAC protocol in the packet loss ratio and enhances the network throughput.

关 键 词：无线传感器网络 S-MAC协议 丢包率 缓存队列 TINYOS 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]