@conference {635, title = {Overlay Spectrum Reuse in a Multicarrier Broadcast Network: Single Receiver Analysis}, booktitle = {The 13th IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2012)}, year = {2012}, address = {Cesme, Turkey}, abstract = {

The overlay cognitive radio paradigm presents a framework where a secondary user exploits the knowledge of the primary user{\textquoteright}s message to improve spectrum utilization. A multicarrier broadcast network is one of the scenarios where this knowledge is possible: the secondary user could join a single frequency network and, therefore, gain access to the primary message. However, if the primary signal is received with a strong line of sight component, its relaying from the secondary transmitter does not suffice to ensure the primary user quality of service. In this paper we study the scenario where a secondary transmitter maximizes its own transmission rate, keeping the quality of a primary receiver over a given threshold. The analytical results, based on bit error rate bounds, are verified by means of software simulations and hardware tests.

}, keywords = {cognitive radio, dynacs}, doi = {10.1109/SPAWC.2012.6292890}, author = {Alberto Rico-Alvari{\~n}o and C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} }