CH-MAC: A multi-channel MAC protocol for dynamic spectrum access networks

CH-MAC is a multi-channel medium access control protocol designed to work for multi-hop dynamic spectrum access networks. Its performance has been extensively evaluated with Ad hoc On Demand Distance Vector (AODV) routing and Destination Sequence Distance Vector (DSDV) protocols. Besides, CH-MAC protocol has several new architectural features such as channel evacuation and error recovery mechanisms that get activated when presence of an incumbent is detected on a channel in use that differ with existing protocols. We demonstrate that for static and dynamic network topologies, CH-MAC has better throughput and delay performance than well-known multi-channel protocols.