Spectrally efficient sensing protocol for cognitive relay systems

Yang Han, Ashish Pandharipande, Ying Wang, See Ho Ting

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

1 Citation (Scopus)

Abstract

We propose sensing protocols for a cognitive dualhop relay system where transmission from source (S) to destination (D) is accomplished over two phases with the assistance of a relay (R). A naive sensing protocol is to perform sensing at S and R before the respective transmission phase. This leads to substantial loss in spectral efficiency. We propose a sensing protocol where sensing is only performed at S when R is transmitting to D after canceling out the self-interference component that is known a priori. Theoretical analysis and numerical simulation validate that our proposed scheme achieves higher spectral efficiency than the naive sensing scheme while maintaining detection performance.

Original languageEnglish
Title of host publication1st International Conference on Communication Systems and Networks and Workshops, COMSNETS 2009
DOIs
Publication statusPublished - 2009
Event1st International Conference on Communication Systems and Networks and Workshops, COMSNETS 2009 - Bangalore, India
Duration: 5 Jan 200910 Jan 2009

Conference

Conference1st International Conference on Communication Systems and Networks and Workshops, COMSNETS 2009
CountryIndia
CityBangalore
Period5/01/0910/01/09

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