Throughput maximization in multi-channel cognitive radio systems with delay constraints

Ahmed Ewaisha, Cihan Tepedelenlioglu

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

1 Citation (Scopus)

Abstract

We study the throughput-vs-delay trade-off in an overlay multi-channel single-secondary-user cognitive radio system. Due to the limited sensing capabilities of the cognitive radio user, channels are sensed sequentially. Maximizing the throughput in such a problem is well-studied in the literature. Yet, in real-time applications, hard delay constraints need to be considered besides throughput. In this paper, optimal stopping rule and optimal power allocation are discussed to maximize the secondary user's throughput, subject to an average delay constraint. We provide a low complexity approach to the optimal solution of this problem. Simulation results show that this solution allows the secondary user to meet the delay constraint without sacrificing throughput significantly. It also shows the benefits of the optimal power allocation strategy over the constant power allocation strategy.

Original languageEnglish (US)
Title of host publicationConference Record - Asilomar Conference on Signals, Systems and Computers
PublisherIEEE Computer Society
Pages1463-1467
Number of pages5
ISBN (Print)9781479923908
DOIs
StatePublished - 2013
Event2013 47th Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: Nov 3 2013Nov 6 2013

Other

Other2013 47th Asilomar Conference on Signals, Systems and Computers
CountryUnited States
CityPacific Grove, CA
Period11/3/1311/6/13

Fingerprint

Radio systems
Cognitive radio
Throughput

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

Cite this

Ewaisha, A., & Tepedelenlioglu, C. (2013). Throughput maximization in multi-channel cognitive radio systems with delay constraints. In Conference Record - Asilomar Conference on Signals, Systems and Computers (pp. 1463-1467). [6810538] IEEE Computer Society. https://doi.org/10.1109/ACSSC.2013.6810538

Throughput maximization in multi-channel cognitive radio systems with delay constraints. / Ewaisha, Ahmed; Tepedelenlioglu, Cihan.

Conference Record - Asilomar Conference on Signals, Systems and Computers. IEEE Computer Society, 2013. p. 1463-1467 6810538.

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

Ewaisha, A & Tepedelenlioglu, C 2013, Throughput maximization in multi-channel cognitive radio systems with delay constraints. in Conference Record - Asilomar Conference on Signals, Systems and Computers., 6810538, IEEE Computer Society, pp. 1463-1467, 2013 47th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, United States, 11/3/13. https://doi.org/10.1109/ACSSC.2013.6810538
Ewaisha A, Tepedelenlioglu C. Throughput maximization in multi-channel cognitive radio systems with delay constraints. In Conference Record - Asilomar Conference on Signals, Systems and Computers. IEEE Computer Society. 2013. p. 1463-1467. 6810538 https://doi.org/10.1109/ACSSC.2013.6810538
Ewaisha, Ahmed ; Tepedelenlioglu, Cihan. / Throughput maximization in multi-channel cognitive radio systems with delay constraints. Conference Record - Asilomar Conference on Signals, Systems and Computers. IEEE Computer Society, 2013. pp. 1463-1467
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