Channel assignment for multi-interface multi-hop wireless networks

Abstract

For public safety or military purposes, it is needed to introduce a unified architecture of multi-hop wireless networks that include both flat (ad-hoc) networks and hierarchical (mesh) networks, where devices can access multiple channels using multiple radio interfaces thanks to the advance of mobile devices. In such networks, it is a challenging issue how to assign channels in a distributed manner by avoiding interference and maintaining connectivity. In this paper, we propose a distributed heuristic channel assignment scheme, based on channel utilization and even adaptive against jamming. We use the OPNET simulator to perform a rigorous simulation and confirm that the performance of the proposed scheme outperforms existing schemes.