Fundamental BER performance trade-off in cooperative cognitive radio systems with random number of secondary users

Ruochen Zeng, Cihan Tepedelenlioglu

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

4 Scopus citations

Abstract

A cooperative underlay cognitive radio system with an instantaneous interference constraint at the primary receiver is considered. Secondary users (SU) whose interference above this threshold will relay primary user's (PU) signal, and the rest will fulfill their own underlay transmissions. Hence the numbers of relay and underlay SUs are random at a time instant. As the mean number of relay SUs increases, the PU's performance will be improved which causes degradation of underlay SUs' performance concurrently. We will quantify this fundamental performance trade-off by deriving the optimal ratio between the mean number of relay and underlay SUs in closed form.

Original languageEnglish (US)
Title of host publicationConference Record of the 50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016
PublisherIEEE Computer Society
Pages889-893
Number of pages5
ISBN (Electronic)9781538639542
DOIs
StatePublished - Mar 1 2017
Event50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016 - Pacific Grove, United States
Duration: Nov 6 2016Nov 9 2016

Other

Other50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016
CountryUnited States
CityPacific Grove
Period11/6/1611/9/16

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

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    Zeng, R., & Tepedelenlioglu, C. (2017). Fundamental BER performance trade-off in cooperative cognitive radio systems with random number of secondary users. In Conference Record of the 50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016 (pp. 889-893). [7869177] IEEE Computer Society. https://doi.org/10.1109/ACSSC.2016.7869177