Review of Routing Protocols and It's Metrics for Wireless Mesh Networks

Hassen A. Mogaibel, M. Othman
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引用次数: 34

Abstract

WMNs are low-cost internet access networks built on cooperative routing over a backbone composed ofstationary wireless routers. In hybrid mesh WMNs both client mesh and backbone has ability to forward the data to destination. Many ad hoc routing protocols have been adapted to work in WMN without considering the differences between both technologies. Due to the differences between ad hoc network and WMN network, many Researchers started to revisit the routing protocol design of existing wireless mesh networks (WMNs), especially of IEEE 802.11 networks, and ad hoc networks from the perspectives of WMNs which provide internet for large distances area and consist of two tiers where the heterogeneity exists between them, the heterogeneity between backbone nodes and client nodes are many, for example, the backbone nodes are immobile with a fixed location and high capacity while the client nodes are mobile devices with low capacity and must take care of power consumption and mobility. However, these perspectives should be taken care of in designing the routing protocol to enhance the routing algorithm in order to work well in WMN. There are two ways to enhance the performance of routing protocol in WMN. One way is to improve the metric used in the selection path, the second way is to modify the routing algorithms by considering new characteristics of WMN or integrating the routing protocols with other technologies. In this paper, we present a detailed review of current state-of-the-art routing protocol and its metric for wireless mesh networks in order to provide a better understanding of the research challenges in WMN routing protocol.
无线网状网络路由协议及其度量综述
WMNs是一种低成本的互联网接入网络,建立在由固定无线路由器组成的骨干网络上的协同路由上。在混合网状网络中,客户端网状网络和骨干网络都具有将数据转发到目的地的能力。许多自组织路由协议已经适应了在WMN中工作,而没有考虑两种技术之间的差异。由于ad hoc网络与WMN网络的差异,许多研究人员开始从WMN提供大距离区域的互联网,由两层组成,并且它们之间存在异构性的角度重新审视现有无线网状网络(WMN),特别是IEEE 802.11网络和ad hoc网络的路由协议设计,骨干节点和客户端节点之间的异构性很多,例如:骨干节点位置固定,容量大,不能移动;客户端节点是移动设备,容量小,需要考虑功耗和移动性。但是,在设计路由协议时需要注意这些方面,以增强路由算法,使其在WMN中更好地工作。提高WMN中路由协议性能的方法有两种。一种方法是改进选择路径中使用的度量,二种方法是通过考虑WMN的新特性或将路由协议与其他技术相结合来改进路由算法。在本文中,我们详细回顾了当前最先进的无线网状网络路由协议及其度量,以便更好地理解WMN路由协议的研究挑战。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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