IEEE 802.11s wireless mesh networks: Framework and challenges
IEEE 802.11s wireless mesh networks: Framework and challenges
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DOI：
10.1016/j.adhoc.2007.09.003
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发表时间：
2008-08
期刊：
影响因子：
4.8
通讯作者：
Xudong Wang;A. Lim
中科院分区：
文献类型：
--
作者：
Xudong Wang;A. Lim
基于802.11无线局域网（WLAN）的无线网状网络已经被积极探索了几年。为了提高无线局域网网状网络的性能，近年来出现了一些新的通信协议。然而，这些解决方案通常是专有的，并且阻止WLAN网状网络彼此互通。因此，标准对于WLAN网状网络变得不可或缺。为了满足这一需求，IEEE 802.11任务组，即，802.11s正在指定WLAN网状网络的标准。尽管802.11标准已经发布了多个标准草案，但仍有许多问题有待解决。为了了解现有802.11s标准框架可以达到什么样的性能，以及需要在802.11s标准中增加哪些功能来提高性能，本文对现有802.11s标准进行了详细的研究。首先介绍了802.11s标准的现有框架，然后指出了当前802.11标准中仍然存在的具有挑战性的研究问题。本文的目的是激励其他研究人员为802.11无线网状网络开发新的可扩展协议。
Wireless mesh networking based on 802.11 wireless local area network (WLAN) has been actively explored for a few years. To improve the performance of WLAN mesh networks, a few new communication protocols have been developed in recent years. However, these solutions are usually proprietary and prevent WLAN mesh networks from interworking with each other. Thus, a standard becomes indispensable for WLAN mesh networks. To meet this need, an IEEE 802.11 task group, i.e., 802.11s, is specifying a standard for WLAN mesh networks. Although several standard drafts have been released by 802.11s, many issues still remain to be resolved. In order to understand what performance can be expected from the existing framework of 802.11s standard and what functionalities shall be added to 802.11s standard to improve performance, a detailed study on the existing 802.11s standard is given in this paper. The existing framework of 802.11s standard is first presented, followed by pointing out the challenging research issues that still exist in the current 802.11 standard. The purpose of this paper is to motivate other researchers to develop new scalable protocols for 802.11 wireless mesh networks.