Rendezvous mac protocols for use in cognitive radio networks

This paper examines rendezvous protocols for ad hoc network establishment in cognitive radio networks. Such capability is needed when deploying cognitive radios in an area whose existing fixed communications infrastructure has been destroyed, such as after a natural disaster. A review of previous rendezvous strategies reveals the need for more research and analysis on the multi-channel, asynchronous scenario. We start our research by first considering the analytical models for the single-channel and multiple-channel synchronous problems. We next discuss possible extensions of these analytical models for the corresponding asynchronous cases. We then present an empirical solution for the four node instance using data collected from experiments on a network testbed.