无线簇树网下的GTS时隙调度算法  

GTS time scheduling algorithm in wireless cluster-tree networks

作　　者：叶雪梅 朱云杰 蔡艳宁 范青刚 李鹏远 

机构地区：[1]西安高科技研究所计算机教研室,陕西西安721006 [2]西安高科技研究所401教研室,陕西西安721006

出　　处：《传感器与微系统》2014年第7期133-136,140,共5页Transducer and Microsystem Technologies

基　　金：军队内部科研资助项目(EP133070)

摘　　要：研究了无线传感器网络簇树结构下的超帧调度机制,针对无线簇树网络中的通信冲突和暴露节点问题展开研究,提出了一套分析理论和判定准则,并在此基础上给出了一种基于区分服务的GTS统筹调度算法。利用NS2软件进行仿真实验,结果表明:算法能够充分利用信道,合理分配时隙,避免不必要的通信冲突,在提高吞吐率、减少丢包率和稳定网络时延方面都具有明显的效果。Superframe scheduling mechanism for wireless sensor networks（ WSNs） under tree structure for communication conflict of wireless cluster tree networks and exposed node problem is studied,a set of analysis theory,criterion are put forward and then a GTS slot and scheduling algorithm based on differentiated services is given based on this.Simulation tests are carried out using the NS2 software,the results show that the algorithm can make use of the channel fully,the rational allocation of time slots,to avoid unnecessary conflict in communication,it has obvious effect on increasing throughput,reducing packet loss rate and stablizing network delay.

关 键 词：低速无线个域网 超帧调度 通信冲突 暴露节点 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]