Stability analysis in a cognitive radio system with cooperative beamforming

Mohammed Karmoose, Ahmed Sultan, Moustafa Youssef

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

4 Scopus citations


We consider a cognitive radio setting in which a relay-assisted secondary link employs cooperative beamforming to enhance its throughput and to provide protection to the primary receiver from interference. We assume the presence of infinite buffers at both the primary and secondary transmitters and characterize the maximum stable throughput region exactly using the dominant system approach. Numerical examples are provided to give insights into the impact of power control on the stability region. © 2013 IEEE.
Original languageEnglish (US)
Title of host publicationIEEE Wireless Communications and Networking Conference, WCNC
Number of pages6
StatePublished - Aug 21 2013
Externally publishedYes


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