一种节能混合无线传感器网络MAC协议
刘一哲;袁睿翕
【期刊名称】《计算机工程与应用》 【年(卷),期】2011(047)027
【摘要】针对无线传感器网络的节能和网络性能流量自适应的需求,在Z-MAC协议的基础上,提出了EFHMAC协议.经过分析表明,EHMAC在保持Z-MAC高信道利用率和低延迟的同时,可以减少Z-MAC低功耗侦听机制造成的大量串音能耗以及pream-ble传输所造成的网络开销.此外,EHMAC对Z-MAC在内的TDMA类协议无法应对的非对称隐藏终端问题提出了解决方案,取得了较高的网络吞吐量和较低的端到端延迟.%This paper puts forward an Energy-efficient Hybrid Media Access Control(EHMAC) protocol in WSNs,based on Z-MAC, in order to meet requirement of power consumption and obtain network performance adaptability to burst flow. Through analysis and NS2 simulation,this paper evaluates and verifies EHMAC's low power consumption due to Low Power Listening (LPL) and maintenance of high channel utilization as Z-MAC does.Meanwhile, EHMAC can decrease the long preamble overhead.Besides,EHMAC proposes the solution to asymmetric hidden terminal problem,and gets higher throughput and lower end to end delay than TDMA category protocol,Z-MAC included. 【总页数】5页(86-90)
【关键词】无线传感器网络;混合介质访问控制;节能;网络性能;非对称隐藏终端
一种节能混合无线传感器网络MAC协议
