Experimental evaluation of an LTE cognitive radio network

An experimental evaluation of an LTE Cognitive Radio (CR) Network, implemented using highly integrated Software Defined Radio (SDR) platform is presented. Each transceiver can be configured as a primary (resp. secondary) eNodeB or a primary (resp. secondary) user in this framework. We propose simple distributed algorithms which the secondary eNodeB can employ to efficiently manage the spectral opportunities that arise in such a network. Experimental validation show significant improvement in the secondary link throughput for various load factors of the primary network usage.