Cross Layer Aware Adaptive Mac Based On Knowledge Based Reasoning for Cognitive Radio Computer Networks

In this paper we are proposing a new concept in MAC layer protocol design for Cognitive radio bycombining information held by physical layer and MAC layer with analytical engine based on knowledgebased reasoning approach. In the proposed system a cross layer information regarding signal tointerference and noise ratio (SINR) and received power are analyzed with help of knowledge basedreasoning system to determine minimum power to transmit and size of contention window, to minimizebackoff, collision, save power and drop packets. The performance analysis of the proposed protocolindicates improvement in power saving, lowering backoff and significant decrease in number of droppackets. The simulation environment was implement using OMNET++ discrete simulation tool withMobilty framework and MiXiM simulation library.