摘要： 针对Ad hoc网络的多信道隐藏终端问题，提出一种基于邻居节点合作通告机制的异步多信道媒介访问控制协议。该协议通过空闲邻居节点向未收到信道协商控制帧的节点发送通告广播帧，从而有效地解决了多信道隐藏终端问题。仿真结果表明，与IEEE 802.11、MMAC协议相比，该协议在提高网络平均吞吐量的同时，还能降低数据包平均延迟。
关键词:
Ad hoc 网络,
多信道,
媒介访问控制,
邻居合作
Abstract: Aiming at the multi-channel hidden terminal problem in Ad hoc networks, this paper presents an asynchronous multi-channel Medium Access Control(MAC) protocol based on neighbor node cooperation announcement mechanism. In this protocol, the idle neighbor node sends an announcement broadcast frame to the nodes which have not received channel consultation control frames. It can effectively solve the multi-channel hidden terminal problem. Simulation results show that, compared with the IEEE 802.11 and MMAC protocol, this protocol can improve the average throughput of the network significantly and reduce the average packet delay simultaneously.
Key words:
Ad hoc network,
multi-channel,
Medium Access Control(MAC),
neighbor cooperation
中图分类号:
方理才, 雷磊, 许宗泽. 基于节点合作的Ad hoc网多信道MAC协议[J]. 计算机工程, 2010, 36(18): 98-100.
FANG Li-Cai, LEI Lei, HU Zong-Ze. Multi-channel MAC Protocol Based on Node Cooperation in Ad hoc Network[J]. Computer Engineering, 2010, 36(18): 98-100.