基于S-MAC的协同MAC协议分析  

Performance Analysis of Cooperative MAC Protocol Based on S-MAC

作　　者：皮旭荣[1] 蔡跃明 

机构地区：[1]解放军理工大学通信工程学院研究生1队,江苏南京210007 [2]解放军理工大学通信工程学院无线通信系

出　　处：《军事通信技术》2012年第1期31-35,42,共6页Journal of Military Communications Technology

基　　金：国家自然科学基金资助项目(60972051)

摘　　要：针对WSN,文中设计了一种基于S-MAC协议的协同MAC协议(SC-MAC)。该协议通过协同通信技术的应用来解决原有协议的直传链路通信质量不理想的问题。在该协议中,选定的一个中继节点和目的节点同时侦听源节点的发送信号,当中继节点收到目的节点的NACK信号时,进行协同传输,否则继续对数据传输的侦听。数值分析和仿真实验表明,使用SC-MAC协议情况下,节点的平均功率、比特数据能耗、平均时延和抗拥塞等性能比使用S-MAC协议时都有很好的提升。A Cooperatvie MAC protocol based on SMAC was designed for the WSN. The cooperation technology was employed to improve the network performance in bad channel. In the protocol, a relay was selceted to listen to the source node. And it cooperates to transmit when receiving a NACK signal or it keeps listening. The mathematic analysis and simulation show that the designed protocol can achieve a better performance ot the average power, energy consumption per transmitted bit, average delay and the ability to prevent the congestion.

关 键 词：无线传感器网络 周期休眠 协同传输 

分 类 号：TN929[电子电信—通信与信息系统]