Cognitive multiple-antenna network in outage-restricted primary system

Behrouz Maham, Petar Popovski

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

4 Citations (Scopus)

Abstract

In the commons model for the spectrum sharing, cognitive users can access the spectrum as long as the target performance in the legitimate primary system is not violated. In this paper, we consider a downlink primary multiple-input-single-output (MISO) system which operates under a controlled interference from the downlink MISO cognitive radio, also called secondary system. We derive exact expressions for outage probability of the primary user under Rayleigh fading, when the primary system is exposed to interference from a secondary base station. Moreover, in high-SNR scenario, a closed-form asymptotic formula for the outage probability is derived, which shows that the primary receiver achieves full spatial diversity under given interference from the secondary user. Next, the optimum transmit power in the secondary system is investigated for maximizing the ergodic capacity when there is an outage constraint at the primary system, and a simple solution is proposed. Finally, the analytical results are confirmed by simulations, in which we analyze the impact of different parameters, such as the number of antennas and the amount of the interference on the system performance; these could be used as system design guidelines.

Original languageEnglish
Title of host publicationIEEE International Conference on Communications
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2791-2795
Number of pages5
ISBN (Print)9781467331227
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 IEEE International Conference on Communications, ICC 2013 - Budapest, Hungary
Duration: Jun 9 2013Jun 13 2013

Other

Other2013 IEEE International Conference on Communications, ICC 2013
CountryHungary
CityBudapest
Period6/9/136/13/13

Fingerprint

Outages
Antennas
Rayleigh fading
Cognitive radio
Base stations
Systems analysis

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

Maham, B., & Popovski, P. (2013). Cognitive multiple-antenna network in outage-restricted primary system. In IEEE International Conference on Communications (pp. 2791-2795). [6654962] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICC.2013.6654962

Cognitive multiple-antenna network in outage-restricted primary system. / Maham, Behrouz; Popovski, Petar.

IEEE International Conference on Communications. Institute of Electrical and Electronics Engineers Inc., 2013. p. 2791-2795 6654962.

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

Maham, B & Popovski, P 2013, Cognitive multiple-antenna network in outage-restricted primary system. in IEEE International Conference on Communications., 6654962, Institute of Electrical and Electronics Engineers Inc., pp. 2791-2795, 2013 IEEE International Conference on Communications, ICC 2013, Budapest, Hungary, 6/9/13. https://doi.org/10.1109/ICC.2013.6654962
Maham B, Popovski P. Cognitive multiple-antenna network in outage-restricted primary system. In IEEE International Conference on Communications. Institute of Electrical and Electronics Engineers Inc. 2013. p. 2791-2795. 6654962 https://doi.org/10.1109/ICC.2013.6654962
Maham, Behrouz ; Popovski, Petar. / Cognitive multiple-antenna network in outage-restricted primary system. IEEE International Conference on Communications. Institute of Electrical and Electronics Engineers Inc., 2013. pp. 2791-2795
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