Title: An interference-aware routing metric for Wireless Mesh Networks

Authors: Riduan M. Abid; Biaz Saad

Addresses: Department of Computer Science and Software Engineering, Auburn University, AL 36849, USA. ' Department of Computer Science and Software Engineering, Auburn University, AL 36849, USA.

Abstract: In Wireless Mesh Networks (WMNs), most routing metrics measure losses using the |direct| broadcast approach that incurs traffic overhead. On the other hand, the |indirect| approach requires the measurement of contention and interference levels. Unfortunately, the two known interference models (protocol and physical) are inapplicable on real-world implementations. This work presents an adaptation of the physical interference model that relies on a probabilistic frames arrival model and can be implemented. This adaptation allows the design of a new interference-aware routing metric. This latter is described and compared to ETX and IEEE 802.11s Airtime using a real-world indoor pre-IEEE 802.11s Wireless Mesh test-bed.

Keywords: WMNs; wireless mesh networks; mobile communications; IEEE 802.11; hybrid wireless mesh protocol; airtime; routing; loss rate; physical interference model.

DOI: 10.1504/IJMC.2011.042780

International Journal of Mobile Communications, 2011 Vol.9 No.6, pp.619 - 641

Published online: 04 Oct 2011 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article