一种按需分配的多信道无线自组网MAC协议  

An On Demand Channel Assignment MAC Protocol for Multi-Channel Ad Hoc Networks

作　　者：赵袁 

机构地区：[1]四川大学计算机学院,成都610000

出　　处：《现代计算机》2016年第3期12-16,共5页Modern Computer

摘　　要：多信道MAC协议在移动Ad Hoc网络中的应用可大幅提升其MAC层性能。现有的多信道方案大多采用划分控制信道和数据信道的方式来避免冲突,但在网络高负载时会碰到控制信道饱和的瓶颈问题,从而不能充分发挥多信道的优势。由此,提出一种按需分配的MAC协议:OM-MAC。该协议不专门划分控制信道,仅使用一个信道传输ACK,有效减少信号冲突,提高信道使用率。仿真实验证明,该协议在移动自组网中具有良好的通信性能。The use of multi-channel MAC protocol in mobile Ad Hoc networks can greatly improve the performance of MAC layer. Most of the existing multi-channel schemes adopt the method of dividing control channel and data channel to avoid conflict. But when the network load is high, the bottleneck problem of control channel saturation is encountered, which cannot make full use of the advantages of multi-chan-nel. Therefore, presents an on-demand channel assignment MAC protocol： OM-MAC. This protocol is not specifically divided into control channel, which uses only one channel to transmit ACK. This effectively reduces the signal conflict and improves the channel utilization ratio. Simulation results show that the protocol has good communication performance in mobile Ad Hoc networks.

关 键 词：移动AD HOC网络 多信道 MAC 按需分配 

分 类 号：TN929.5[电子电信—通信与信息系统]