IEEE Spectrum - Critical challenges 2002
A high-throughput path metric for multi-hop wireless routing
Proceedings of the 9th annual international conference on Mobile computing and networking
Comparison of routing metrics for static multi-hop wireless networks
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
Feasibility study of mesh networks for all-wireless offices
Proceedings of the 4th international conference on Mobile systems, applications and services
The capacity of wireless networks
IEEE Transactions on Information Theory
Routing Metrics and Protocols for Wireless Mesh Networks
IEEE Network: The Magazine of Global Internetworking
A routing protocol suitable for backhaul access in wireless mesh networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Diverse Path Routing with Interference and Reusability Consideration in Wireless Mesh Networks
Mobile Networks and Applications
A joint experimental and simulation study of the IEEE 802.11s HWMP protocol and airtime link metric
International Journal of Communication Systems
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Multihop wireless mesh networks are an attractive solution for providing last-mile connectivity. However, the shared nature of the transmission medium makes it challenging to fully exploit these networks. In an attempt to improve the radio resource utilization, several routing metrics have been specifically designed for wireless mesh networks. However none of these routing metrics efficiently tackles interference issues. Moreover, although some evaluations have been conducted to assess the performance of these metrics in some contrived scenarios, no overall comparison has been performed. The contributions of this paper are consequently twofold. First, we propose a new routing metric, Interference-Aware Routing metric (IAR), specifically designed for WMNs. IAR uses MAC-level information to measure the share of the channel that each link is able to utilize effectively. As a result, paths that exhibit the least interference will be selected to route the data traffic. Then we evaluate the performance of IAR against some of the most popular routing metrics currently used in wireless mesh networks: Hop Count, Blocking Metric, Expected Transmission Count (ETX), Expected Transmission Time (ETT), Modified ETX (mETX), Network Allocation Vector Count (NAVC) and Metric of Interference and Channel-Switching (MIC). We show under various simulation scenarios that IAR performs the best in terms of end-to-end delay and packet loss, and provides the fairest resource utilization.