Outage analysis of spectrum sharing cognitive DF relay networks using outdated CSI

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We investigate the effect of the outdated channel state information (CSI) on the secondary relay-aided network's performance. We carry out the analysis of the outage probability as well as the diversity order of the secondary network (SN) considering three key constraints: 1) maximum transmit power at the secondary transmitter, 2) peak interference power at the primary receiver, and 3) outdated CSI at the secondary-to-primary and secondary-to-secondary links. The performance results show that the relay cluster position, the imperfect CSI of the interference links and of the second hop are the key optimization factors. We show that the correlation coefficient of the second hop link is the key optimization parameter of the diversity order.

Original languageEnglish
Article number6656073
Pages (from-to)2272-2275
Number of pages4
JournalIEEE Communications Letters
Volume17
Issue number12
DOIs
Publication statusPublished - Dec 2013

Fingerprint

Spectrum Sharing
Relay Networks
Channel state information
Channel State Information
Outages
Relay
Interference
Outage Probability
Parameter Optimization
Network Performance
Network performance
Imperfect
Correlation coefficient
Transmitter
Transmitters
Receiver
Optimization

Keywords

  • Cognitive relay networks
  • Outage analysis
  • Outdated CSI

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Modelling and Simulation

Cite this

Outage analysis of spectrum sharing cognitive DF relay networks using outdated CSI. / Tourki, Kamel; Qaraqe, Khalid; Abdallah, Mohamed.

In: IEEE Communications Letters, Vol. 17, No. 12, 6656073, 12.2013, p. 2272-2275.

Research output: Contribution to journalArticle

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