Joint Power Control and Relay Design in Underlay Cognitive Networks with Multiple Transmitter-Receiver Pairs Conference Paper uri icon

abstract

  • We consider an underlay cognitive network with L transmitter-receiver pairs and K relays in a two-hop half-duplex cooperative scheme. While the transmitters use a shared channel to transmit to the relays, the relays use either a shared channel or L orthogonal channels to communicate with the L receivers. For both second-hop-channel cases, we jointly determine the transmitters' powers and the relaying weights that maximize the worst signal-to-interference-plus-noise ratio subject to the transmitters' total and individual and the relays' total power constraints while guaranteeing that the interference powers on M existing primary users are below some required thresholds. 2011 IEEE.

name of conference

  • 2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR)

published proceedings

  • 2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR)

author list (cited authors)

  • Zarifi, K., Affes, S., & Ghrayeb, A.

citation count

  • 1

complete list of authors

  • Zarifi, Keyvan||Affes, Sofiene||Ghrayeb, Ali

publication date

  • November 2011