摘要
在基于Zig Bee的无线传感器网络中,为了有效合理地利用Zig Bee网络的能量,延长网络生存周期,提高网络传输的稳定可靠性,该文对传统的Zig Bee网络协调器建立网络的过程在硬件支持的前提下做出了优化改进。改变传统的Zig Bee网络协调器建立网络时单一考虑信道能量因素和传统的基于数据统计的信道质量评估方法。引入信道链路质量LQI,改进后协调器在建立新网络时,同时考虑信道能量和信道链路质量因素。经过仿真并与传统方法进行比较,结果表明,改进优化后有效延长了传感器网络的生存周期,提高了网络传输的可靠稳定性。
In the Wireless sensor networks based on ZigBee, in order to use the energy of ZigBee network effectively and rationally, extend the network's lifetime and improve the stability and reliability of the network transmission, this paper improved the process of network establishment in traditional ZigBee Network Coordinator considering the hardware support. Changed the cosideration of thinking the channel energy only when establishing network,and changed the traditional assess method of channel's quality based on data statistics. Introducing the channel link quality LQI. When improved coordination establish new networks, it considers both channel energy and channel link quality factors. After the compare of simulation and traditional method, the results showed that after optimization, the lifetime of sensor networks have been extended effectively. The stability of network transmission also have been improved.
出处
《电子科学技术》
2015年第6期685-690,共6页
Electronic Science & Technology
