Interference-free overlay cognitive radio network based on cooperative space time coding

Vivek Ashok Bohara, See Ho Ting, Yang Han, Ashish Pandharipande

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

43 Citations (Scopus)

Abstract

In this paper, we propose a two-phase overlay spectrum sharing protocol based on cooperative decode-and-forward relaying which allows the secondary system to gain spectrum access along with the primary system. In the proposed scheme, the secondary system operates simultaneously in the same frequency band as the primary system, which supports the relaying functionality. We show that by using a space time block code (STBC) design in two time phases in the secondary system, the subsequent interference from the secondary system to the primary system and vice versa can be completely removed. Consequently, it is possible to achieve spectrum access for secondary system without compromising on the performance of the primary system. Performance of the primary system and the secondary system is analyzed in terms of outage probability, and simulation results are shown to validate the efficiency of the proposed scheme.

Original languageEnglish
Title of host publication2010 Proceedings of the 5th International Conference on Cognitive Radio Oriented Wireless Networks and Communications
PublisherInstitute of Electrical and Electronics Engineers
Number of pages5
ISBN (Electronic)978-1-4244-5886-8
ISBN (Print)978-1-4244-5885-1
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event5th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCom 2010) - Cannes, France
Duration: 9 Jun 201011 Jun 2010
Conference number: 5

Conference

Conference5th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCom 2010)
Abbreviated titleCROWNCom 2010
Country/TerritoryFrance
CityCannes
Period9/06/1011/06/10

Keywords

  • Cooperative decode-and-forward
  • Outage probability
  • Spectrum sharing
  • STBC

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