Wireless networking is encouraged by the constant enhancement of sensors' ability and wireless communication. To provide service quality support for multimedia viz. audio and video streams, the IEEE 802.11e MAC (Media Access Control) improves basic 802.11 MAC. IEEE 802.11 standard series such as IEEE 802.11a, b, g, n, p, and ac have been promoted and specified in the current communications and connection development. Each standard has functionality that matches the kind of applications for which the standard is intended. IEEE 802.11ac has better performance with fewer interferences and achieves gigabits per second capacity transfer rates. This paper discusses the comparative examination of the IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.11p, and IEEE 802.11ac standards which increase accuracy and performance pertaining to the IEEE 802.11 standard. In this paper, we investigate the design requirements for numerous simultaneous peer-to-peer connections. Further, this study offers a systematic review and analysis of the MAC layer in WMN (Wireless Mesh Network) and also highlights their open research issues and challenges. Finally, this paper discusses various potential directions for future research in this area with an emphasis on their strengths and limitations.

翻译：传感器能力的持续提升和无线通信技术的发展促进了无线网络的普及。为提供多媒体（即音频和视频流）的服务质量支持，IEEE 802.11e MAC（媒体访问控制）对基础802.11 MAC进行了改进。在当前通信与连接发展过程中，IEEE 802.11a、b、g、n、p及ac等系列标准已被推广和规范。每个标准都具有与其目标应用类型相匹配的功能特性。其中，IEEE 802.11ac标准具有更优的性能表现、更少的干扰，并能实现每秒千兆比特级的传输容量。本文对提升IEEE 802.11标准精度与性能的802.11a、802.11b、802.11g、802.11n、802.11p及802.11ac标准进行了比较研究。我们探讨了多路并发点对点连接的设计需求，并对无线网状网络（WMN）中的MAC层进行了系统性综述与分析，同时指出了该领域尚未解决的研究问题与挑战。最后，本文讨论了该领域未来研究的多个潜在方向，并着重分析了各方向的优势与局限性。