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MAC层是认知Ad Hoc网络一个很重要的研究领域。它决定频谱的感知策略和接入策略,在保证主用户不受影响的前提下,实现与主用户及其它认知用户的共存。文中综述了认知Ad Hoc网络MAC协议的设计要求以及当前面临的问题和挑战。然后对认知Ad Hoc网络进行了分类。对几种典型的MAC协议进行了分析和对比。最后展望了未来的研究方向。
The MAC layer is a very important area of research for cognitive Ad Hoc networks. It determines the perception strategy and access strategy of the spectrum, and coexists with the main user and other cognitive users under the premise of not affecting the main user. This paper summarizes the design requirements of MAC protocol for cognitive Ad Hoc networks and the problems and challenges currently faced. Then the cognitive Ad Hoc networks are classified. Several typical MAC protocols are analyzed and compared. Finally, the future research direction is forecasted.