Demo Abstract: Online Optimal Channel Sensing, Probing, Accessing in USRP Networks

Summary form only given. In this work, we address the spectrum utilization problem in cognitive radio networks. The difficulty of the problem comes from the need to balance exploring new channels and exploiting existing channel, and the fact that the channel availability and channel quality, which are potentially heterogeneous and time-dependent, are unknown or hard to know for CRs due to the large number of channels and the limited hardware capability of single CR. In this demo, we present a practical joint sensing/probing/accessing schemes, which demonstrates how to sense, probe and access spectrum opportunities. Our methods are proved to be workable in USRP networks and evaluated in real network scenarios.