New Resource Allocation Scheme for Cognitive Relay Networks with Opportunistic Access Conference Paper uri icon


  • In this paper, a new resource allocation scheme to minimize Symbol Error rate (SER) for relay assisted cognitive radio networks is studied. A cognitive relay network with amplify-and-forward (AF) fixed gain relays and opportunistic access to the licensed spectrum is considered. The SER objective function and the optimization constraints are derived first. The resource allocation algorithm is then derived using the Langrangian multiplier method. Closed form expressions are derived for the source and relay powers and, symbol time. Analytical results show that the optimal power allocation follows an extended water-filling solution.

name of conference

  • 2012 IEEE International Conference on Communications (ICC)

published proceedings


author list (cited authors)

  • Zafar, A., Alouini, M., Chen, Y., & Radaydeh, R. M.

citation count

  • 3

complete list of authors

  • Zafar, Ammar||Alouini, Mohamed-Slim||Chen, Yunfei||Radaydeh, Redha M

publication date

  • January 1, 2012 11:11 AM