On the Capacity of Rayleigh-Fading Correlated Spectrum Sharing Networks

Journal article, 2011

Recently, substantial attention has been paid to improve the spectral efficiency of communication setups using different spectrum sharing techniques. This paper aims to study the capacity of Rayleigh-fading spectrum sharing channels in the case where there is correlation between the fading channels. Assuming perfect channel state information (CSI), the channel capacity is obtained under different unlicensed user power adaptation capabilities and the licensed user outage probability and received interference power constraints. Theoretical and simulation results show that there is considerable potential for data transmission of unlicensed users with limited degradation of the licensed users data transmission efficiency.