双概率检测无线传感器网络MAC协议分析

Analysis of double probability detection MAC protocol for wireless sensor network

提出了一种新的随机多址无线传感器网络MAC协议,通过划分分组发送时间为1+a,采用1时间内p1概率检测与a时间内p2概率检测控制策略,对多通道随机多址无线传感器网络MAC协议进行了理论分析.在可控性增加的基础上,得出了系统的吞吐量、多业务优先级的吞吐量和信息分组发送时延等重要系统参数.此外,还通过传感器网络实验和计算机仿真实验验证了理论分析的正确性.新的控制协议,其节点接入控制更加精细,更适于无线传感器网络的MAC接入控制.

This paper presented a new CSMA protocol named double probability detection control for multi-channel random multi-access（DPDMRM）.By dividing transmission time of packet into one plus a,using p_1 probability detection in time one,and p_2 probability detection in time a.Based elaborate control strategy,throughput of the system,throughput of different priority and packet delay are presented by theoretical calculations.Besides,through the wirless sensor networks and computer simulation experiment we proved that the theoretical analysis is right.Thus,we get the result that DPDMRM is more suitable for WSN.