Wireless mesh networks (WMNs) have emerged as a flexible and low-cost network infrastructure, where heterogeneous mesh routers managed by different users collaborate to extend network coverage. This paper proposes a novel routing metric, Expected Forwarded Counter (EFW), and two further variants, to cope with the problem of selfish behavior (i.e., packet dropping) of mesh routers in a WMN. EFW combines, in a cross-layer fashion, routing-layer observations of forwarding behavior with MAC-layer measurements of wireless link quality to select the most reliable and high-performance path. We evaluate the proposed metrics both through simulations and real-life deployments on two different wireless testbeds, performing a comparative analysis with On-Demand Secure Byzantine Resilient Routing (ODSBR) Protocol and Expected Transmission Counter (ETX). The results show that our cross-layer metrics accurately capture the path reliability and considerably increase the WMN performance, even when a high percentage of network nodes misbehave.

(2013). Cross-Layer Metrics for Reliable Routing in Wireless Mesh Networks [journal article - articolo]. In IEEE-ACM TRANSACTIONS ON NETWORKING. Retrieved from http://hdl.handle.net/10446/118703

Cross-Layer Metrics for Reliable Routing in Wireless Mesh Networks

Martignon, Fabio;
2013-06-01

Abstract

Wireless mesh networks (WMNs) have emerged as a flexible and low-cost network infrastructure, where heterogeneous mesh routers managed by different users collaborate to extend network coverage. This paper proposes a novel routing metric, Expected Forwarded Counter (EFW), and two further variants, to cope with the problem of selfish behavior (i.e., packet dropping) of mesh routers in a WMN. EFW combines, in a cross-layer fashion, routing-layer observations of forwarding behavior with MAC-layer measurements of wireless link quality to select the most reliable and high-performance path. We evaluate the proposed metrics both through simulations and real-life deployments on two different wireless testbeds, performing a comparative analysis with On-Demand Secure Byzantine Resilient Routing (ODSBR) Protocol and Expected Transmission Counter (ETX). The results show that our cross-layer metrics accurately capture the path reliability and considerably increase the WMN performance, even when a high percentage of network nodes misbehave.
journal article - articolo
giu-2013
Paris, Stefano; Nita-Rotaru, Cristina; Martignon, Fabio; Capone, Antonio
(2013). Cross-Layer Metrics for Reliable Routing in Wireless Mesh Networks [journal article - articolo]. In IEEE-ACM TRANSACTIONS ON NETWORKING. Retrieved from http://hdl.handle.net/10446/118703
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