Interference-aware random beam selection for spectrum sharing systems

Mohamed Abdallah, Mostafa Sayed, Mohamed Slim Alouini, Khalid A. Qaraqe

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

3 Citations (Scopus)

Abstract

Spectrum sharing systems have been introduced to alleviate the problem of spectrum scarcity by allowing secondary unlicensed networks to share the spectrum with primary licensed networks under acceptable interference levels to the primary users. In this paper, we develop interference-aware random beam selection schemes that provide enhanced throughput for the secondary link under the condition that the interference observed at the primary link is within a predetermined acceptable value. For a secondary transmitter equipped with multiple antennas, our schemes select a random beam, among a set of power- optimized orthogonal random beams, that maximizes the capacity of the secondary link while satisfying the interference constraint at the primary receiver for different levels of feedback information describing the interference level at the primary receiver. For the proposed schemes, we develop a statistical analysis for the signal-to-noise and interference ratio (SINR) statistics as well as the capacity of the secondary link. Finally, we present numerical results that study the effect of system parameters including number of beams and the maximum transmission power on the capacity of the secondary link attained using the proposed schemes.

Original languageEnglish
Title of host publication2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings
DOIs
Publication statusPublished - 1 Dec 2012
Event76th IEEE Vehicular Technology Conference, VTC Fall 2012 - Quebec City, QC, Canada
Duration: 3 Sep 20126 Sep 2012

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

Other76th IEEE Vehicular Technology Conference, VTC Fall 2012
CountryCanada
CityQuebec City, QC
Period3/9/126/9/12

Keywords

  • Beamforming
  • Cognitive radio
  • Multi-antenna systems
  • Spectrum sharing

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Fingerprint Dive into the research topics of 'Interference-aware random beam selection for spectrum sharing systems'. Together they form a unique fingerprint.

  • Cite this

    Abdallah, M., Sayed, M., Alouini, M. S., & Qaraqe, K. A. (2012). Interference-aware random beam selection for spectrum sharing systems. In 2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings [6399104] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VTCFall.2012.6399104