Taskeen Nadkar Vinay Thumar Uday B. Desai Shabbir N. Merchant Optimum Bit Loading for Cognitive Relaying. 1-6 2010 WCNC https://doi.org/10.1109/WCNC.2010.5506656 conf/wcnc/2010 db/conf/wcnc/wcnc2010.html#NadkarTDM10