摘要： 在传统的无线传感器网络研究中，通常假设传感器节点位置是固定的，忽略了节点位置变化对网络性能的影响。针对上述问题，提出基于全局时间信息的自适应同步激活(ASA)算法。ASA算法借助全局时间信息，避免了节点移动性对MAC协议休眠调度机制的影响。仿真结果表明，ASA算法在节点移动的情况下，分组递交率及节能特性均优于S-MAC协议。
关键词:
移动无线传感器网,
节点移动性,
MAC协议,
自适应同步激活算法
Abstract: In present Wireless Sensor Network(WSN) MAC protocol research, it is generally assumed that node is static. This paper researches the influence of mobility on current WSN MAC protocols, and proposes Adaptive Synchronization Activation(ASA) algorithm. With the help of global time information, ASA avoids the influence that the mobility has to activation/sleep schedule mechanism in WSN MAC protocol. Simulation results show that ASA algorithm displays better performance in the mobile environment, and its packet delivery rate and energy efficiency is better than S-MAC protocol.
Key words:
mobile Wireless Sensor Network(WSN),
node mobility,
MAC protocol,
Adaptive Synchronization Activation(ASA) algorithm
中图分类号:
魏博, 张大龙, 胡捍英. 移动无线传感器网络中的ASA算法[J]. 计算机工程, 2010, 36(17): 126-128.
WEI Bo, ZHANG Da-Long, HU Gan-Yang. Adaptive Synchronization Activation Algorithm in Mobile Wireless Sensor Network[J]. Computer Engineering, 2010, 36(17): 126-128.