Channel assortment strategy for reliable communication in multi-hop cognitive radio networks

Channel selection plays a vital role in efficient and reliable data dissemination. In the context of Cognitive Radio Network (CRN) [1], channel selection is more challenging due to the traffic pattern and channels´ occupancy of primary radio (PR) nodes. Moreover, Cognitive Radio (CR) transmissions should not degrade the reception quality of PR nodes and should be immediately interrupted whenever a neighboring PR activity is detected [2]. Thus, it is essential and, however, extremely challenging for CR nodes to correctly select channels allowing reliable communication.