To Sense or to Transmit: A Learning-Based Spectrum Management Scheme for Cognitive Radio Mesh Networks

Date Added: Jan 2010
Format: PDF

Wireless mesh networks, composed of interconnected clusters of Mesh Router (MR) and multiple associated Mesh Clients (MCs), may use cognitive radio equipped transceivers, allowing them to choose licensed frequencies for high bandwidth communication. However, the protection of the licensed users in these bands is a key constraint. In this paper, the authors propose a reinforcement learning based approach that allows each mesh cluster to independently decide the operative channel, the durations for spectrum sensing, the time of switching, and the duration for which the data transmission happens. The contributions made in this paper are threefold.