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2009 IEEE Information Theory Workshop
The cognitive framework, which fosters an efficient use of the channel resource by granting access to smart and adaptive terminals, has been recently integrated with the cooperative paradigm. Accordingly, following a spectrum-leasing approach, licensed (primary) users may let unlicensed (secondary) users access the owned bandwidth in exchange for an increased performance via cooperation. Nevertheless, assuming that secondary transmission is limited to idle primary slots, as the traffic from thedoi:10.1109/itw.2009.5351412 fatcat:lilivfuhcrbvzpfuqs4e33rlwq