Distributed spectrum aggregation in cooperative networks

Saira Dawer Baig, Syed Imtiaz Hussain, Khalid Qaraqe

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

1 Citation (Scopus)

Abstract

This paper proposes a modification in the distributed spectrum aggregation scheme presented in [1] to significantly improve its performance. The proposed scheme aggregates the 'common' idle bands between source and the participating relays instead of 'all' idle bands at the source as suggested in [1]. The earlier scheme fails if any of the idle bands at the source is unavailable across the relays. Nevertheless, the proposed scheme succeeds in this situation by aggregating the common idle bands only. If all idle bands of the source are available across the relays, both schemes are successful. Hence, the proposed scheme only fails in a rare event of no common idle bands. This reduces outage probability and improves channel capacity and bit error rate (BER) on average. We consider a more generalized Nakagami-m channel, which covers the Rayleigh channel used in [1]. Additionally, we extend the analysis from outage probability to BER and channel capacity. Simulation results show that the proposed scheme significantly outperforms the earlier scheme in terms of all major performance parameters.

Original languageEnglish
Title of host publication2014 IEEE International Conference on Communications Workshops, ICC 2014
PublisherIEEE Computer Society
Pages320-324
Number of pages5
ISBN (Print)9781479946402
DOIs
Publication statusPublished - 2014
Event2014 IEEE International Conference on Communications Workshops, ICC 2014 - Sydney, NSW, Australia
Duration: 10 Jun 201414 Jun 2014

Other

Other2014 IEEE International Conference on Communications Workshops, ICC 2014
CountryAustralia
CitySydney, NSW
Period10/6/1414/6/14

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Keywords

  • cognitive radio
  • cooperative communications
  • spectrum aggregation

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Baig, S. D., Hussain, S. I., & Qaraqe, K. (2014). Distributed spectrum aggregation in cooperative networks. In 2014 IEEE International Conference on Communications Workshops, ICC 2014 (pp. 320-324). [6881216] IEEE Computer Society. https://doi.org/10.1109/ICCW.2014.6881216