Buffer-aided relay selection with interference cancellation and secondary power minimization for cognitive radio networks

Mostafa Darabi, Behrouz Maham, Xiangyun Zhou, Walid Saad

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

13 Citations (Scopus)

Abstract

In this paper, we consider a cooperative underlay cognitive radio network with K half-duplex decode-and-forward relays that are used by the source-destination pairs of both the primary network (PN) and secondary network (SN). The SN exploits buffers with size of L data elements at relays to store the incoming secondary information and retransmit it later. We propose a novel buffer-aided relay selection scheme with successive interference cancellation and optimal SN power allocation that allows to mitigate the mutual interference between PN and SN. Using extensive simulations, we investigate performance of the proposed scheme in terms of the secondary throughput and power expenditure. Our results show that the proposed policy manages the interference between PN and SN efficiently, minimizes secondary power consumption and achieves higher secondary throughput compared to the recently proposed policy.

Original languageEnglish
Title of host publication2014 IEEE International Symposium on Dynamic Spectrum Access Networks, DYSPAN 2014
PublisherIEEE Computer Society
Pages137-140
Number of pages4
ISBN (Print)9781479926619
DOIs
Publication statusPublished - Jan 1 2014
Externally publishedYes
Event2014 IEEE International Symposium on Dynamic Spectrum Access Networks, DYSPAN 2014 - McLean, VA, United States
Duration: Apr 1 2014Apr 4 2014

Publication series

Name2014 IEEE International Symposium on Dynamic Spectrum Access Networks, DYSPAN 2014

Other

Other2014 IEEE International Symposium on Dynamic Spectrum Access Networks, DYSPAN 2014
CountryUnited States
CityMcLean, VA
Period4/1/144/4/14

Keywords

  • Cognitive radio network
  • buffer-aided relaying
  • interference cancellation
  • power allocation
  • relay selection

ASJC Scopus subject areas

  • Computer Networks and Communications

Fingerprint Dive into the research topics of 'Buffer-aided relay selection with interference cancellation and secondary power minimization for cognitive radio networks'. Together they form a unique fingerprint.

  • Cite this

    Darabi, M., Maham, B., Zhou, X., & Saad, W. (2014). Buffer-aided relay selection with interference cancellation and secondary power minimization for cognitive radio networks. In 2014 IEEE International Symposium on Dynamic Spectrum Access Networks, DYSPAN 2014 (pp. 137-140). [6817789] (2014 IEEE International Symposium on Dynamic Spectrum Access Networks, DYSPAN 2014). IEEE Computer Society. https://doi.org/10.1109/DySPAN.2014.6817789