Abstract
Wireless mesh networks (WMNs) are expected to be a key enabling technology for fourth-generation wireless systems, providing flexible, high-capacity wireless backhaul over large geographic areas. WMNs are dynamically self-organized and self-configured, with the nodes in the network automatically establishing an ad hoc network and maintaining the mesh connectivity. Several performance metrics are already designed for WMNs such as Expected Transmission Count (ETX), Expected Transmission Time (ETT), Interference Aware Routing Metric (iA WARE), and etc [1]. However, each individual routing metric consider some features and it is difficult to satisfy all the requirements of WMNs by using a single metric. In this paper, review of routing protocols and its performance metrics for wireless mesh networks will be presented to achieve better understanding of the research challenges in WMN routing protocols
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