Outage analysis for underlay relay-assisted cognitive networks

Kamel Tourki, Khalid Qaraqe, Mohamed Slim Alouini

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

4 Citations (Scopus)

Abstract

Cooperative relay technology was recently introduced into cognitive radio networks in order to enhance network capacity, scalability, and reliability of end-to-end communication. In this paper, we investigate an underlay cognitive network where the quality of service of the secondary link is maintained by triggering an opportunistic regenerative relaying once it falls under an unacceptable level. We first provide the exact cumulative density function (CDF) of received signal-to-noise (SNR) over each hop with co-located relays. Then, the CDFs are used to determine very accurate closed-form expression for the outage probability for a transmission rate R. We validate our analysis by showing that simulation results coincide with our analytical results in Rayleigh fading channels.

Original languageEnglish
Title of host publication2012 IEEE Global Communications Conference, GLOBECOM 2012
Pages1248-1253
Number of pages6
DOIs
Publication statusPublished - 2012
Event2012 IEEE Global Communications Conference, GLOBECOM 2012 - Anaheim, CA, United States
Duration: 3 Dec 20127 Dec 2012

Other

Other2012 IEEE Global Communications Conference, GLOBECOM 2012
CountryUnited States
CityAnaheim, CA
Period3/12/127/12/12

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Tourki, K., Qaraqe, K., & Alouini, M. S. (2012). Outage analysis for underlay relay-assisted cognitive networks. In 2012 IEEE Global Communications Conference, GLOBECOM 2012 (pp. 1248-1253). [6503284] https://doi.org/10.1109/GLOCOM.2012.6503284