Routing Algorithms for Cognitive Networks

Ad-Hoc Cognitive Networks are composed of mobile cognitive nodes that are expected to fulfill end-to-end user application objectives. Each cognitive node can change its radio parameters (spectrum) in order to improve its efficiency and to avoid interference with licensed or unlicensed users. This paper proposes schemes for increasing user experience of such networks, considering channels bandwidth and routing decisions, where the transmission of each cognitive node is limited to only one of its channels. The main contribution of our schemes is a simple algorithm that increases the performance of such networks in various conditions.