一种适用于Ad Hoc网络的协作MAC协议

摘要

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.%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。