Joint source power control and relay beamforming in amplify-and-forward cognitive networks with multiple source-destination pairs

Keyvan Zarifi, Sofiène Affes, Ali Ghrayeb

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Citations (Scopus)

Abstract

We consider a multipoint-to-multipoint cognitive network wherein the communications from L sources to their designated destinations are carried out through the use of K relays in a dual-hop amplify-and-forward cooperative scheme. Aiming to maximize the worst signal-to-interference-plus-noise ratio of the L destinations, we develop a technique that jointly optimizes the sources' transmit powers and the relays' beamforming weights while satisfying the sources and the relays total transmit power constraints as well as the sources individual power constraints and further guaranteeing that the interference powers inflicted from the cognitive network on the M existing primary users are below acceptable thresholds.

Original languageEnglish
Title of host publication2011 IEEE International Conference on Communications, ICC 2011
DOIs
Publication statusPublished - 2 Sep 2011
Event2011 IEEE International Conference on Communications, ICC 2011 - Kyoto, Japan
Duration: 5 Jun 20119 Jun 2011

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Other

Other2011 IEEE International Conference on Communications, ICC 2011
CountryJapan
CityKyoto
Period5/6/119/6/11

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Zarifi, K., Affes, S., & Ghrayeb, A. (2011). Joint source power control and relay beamforming in amplify-and-forward cognitive networks with multiple source-destination pairs. In 2011 IEEE International Conference on Communications, ICC 2011 [5962760] (IEEE International Conference on Communications). https://doi.org/10.1109/icc.2011.5962760