摘要
物理层协作通信技术的应用给媒体接入控制(MAC)协议的设计带来了挑战。针对协作通信特点,提出一种适用于Ad Hoc网络的自适应协作MAC(ADCO-MAC)协议。基于最短路径算法,在源、目的节点之间选择最佳的协作节点。根据网络条件,可自适应选择是否进行协作传输。利用OPNET软件实现对ADCO-MAC协议的网络仿真。通过仿真结果表明,ADCO-MAC协议在吞吐量、端到端时延、接收成功率方面性能有显著提升。
The application of cooperative communication technology on physical layer introduces great challenges to MAC protocol design. Based on the characteristics of cooperative communication, an adaptive cooperative MAC （ADCO-MAC） protocol for ad hoc networks is proposed. Based on shortest path algorithm, ADCO-MAC protocol selects the best cooperative node between source node and destination node. While ADCO-MAC protocol adaptively chooses whether cooperative transmission or not according to network conditions. The network simulation of ADCO-MAC protocol is carried out using OPNET. Simulation results show that the performance of ADCO-MAC protocol improves significantly in terms of throughput, end to end delay and reception success rate.
出处
《移动通信》
2014年第22期40-45,共6页
Mobile Communications
