Performance analysis of adaptive modulation in cognitive relay networks with interference constraints

  title={Performance analysis of adaptive modulation in cognitive relay networks with interference constraints},
  author={Jiangbo Si and Yuquan Li and Jun Jie Chen and Peihan Qi and Haiyan Huang},
  journal={2012 IEEE Wireless Communications and Networking Conference (WCNC)},
In this paper, we investigate the performance of adaptive modulation in spectrum sharing cognitive relay networks, where the secondary user (SU) transmits the message by one best relay with amplify and forward (AF) relaying scheme. Moreover, to guarantee the primary user (PU)'s transmission quality, the interferences caused by the SU transmitter and the selected relay are less than a predetermined interference threshold. The capacity of adaptive modulation with opportunistic AF relaying is… CONTINUE READING


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