Outage analysis of cognitive communication system using opportunistic relay selection and secondary users as relays

Efficient bandwidth utilisation is significant in new communication systems where secondary users can be used besides primary users considering interference issues and idle state of primary users. Using secondary users as relays to transmit their own signals in addition to the primary signals can be...

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Bibliographic Details
Published inInternational journal of electronics letters Vol. ahead-of-print; no. ahead-of-print; pp. 1 - 11
Main Authors Javadzadeh, Hojjat, Zahedi, Abdulhamid
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 01.12.2023
Taylor & Francis Ltd
Subjects
best relay
Communications systems
opportunistic relay selection
Outage probability
Outages
primary user
Relay
secondary user
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Summary:Efficient bandwidth utilisation is significant in new communication systems where secondary users can be used besides primary users considering interference issues and idle state of primary users. Using secondary users as relays to transmit their own signals in addition to the primary signals can be applied for more reliability of the system where opportunistic relay selection can significantly enhance the performance of the system. The best-condition secondary user is selected as the optimum relay for retransmission of primary/secondary signal. Outage probability is analysed in this paper based on decode and forward technique in secondary users while the closed-form statement for outage probability is provided and verified by numerical evaluations.
ISSN:2168-1724
2168-1732
DOI:10.1080/21681724.2022.2118837