摘要
针对矿山井下巷道容迟无线传感器网络环境,在EQ-MAC基础上提出一种基于预测接收节点发起传输时间的MAC协议,从而减少发送节点空闲侦听。引入短竞争报文避免接收节点处数据包的冲突,并建立节点退避状态模型对MAC层传输性能进行分析。仿真结果表明提出的MAC协议能较好的满足井下无线传感器网络环境对数据通信和监控可靠性的要求,短竞争报文退避传输机制能有效解决接收节点处数据包传输冲突问题。
By analysis the environment of underground mine roadway delay tolerant wireless sensor networks,based on the EQM-AC propose a new MAC protocol to forecasts the receiving node initiates transmission time,thus reducing the sending node idle listening.Introduction of competition packets to avoid packet conflict at the receiving node,create a node backoff state model for the MAC layer transmission performance analysis.Simulation results show that the proposed MAC protocol can satisfy data communications and monitoring reliability requirements in the environment of underground wireless sensor networks,Competition packet transmission backoff mechanism can effectively solve data packets conflict at the receiving node.
出处
《电子测量技术》
2014年第7期115-120,共6页
Electronic Measurement Technology
基金
安徽省"十二五"科技攻关计划(11010402183)资助项目
关键词
无线传感器网络
MAC协议
空闲侦听
退避模型
仿真
wireless sensor network （WSN）
MAC protocol
idle listening
backoff model
simulation
