Cooperative relaying for idle band integration in spectrum sharing systems

Syed Imtiaz Hussain, Khalid Qaraqe

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

2 Citations (Scopus)

Abstract

The scarcity of radio spectrum caused the emergence of spectrum sharing systems in which unlicensed users can exploit unused licensed primary bands. Due to unavailability of contiguous unused bands, services requiring large bandwidths can not be supported within unlicensed or cognitive networks. This could be overcome by using few disjoint idle bands and generating a larger bandwidth, also known as spectrum aggregation. In this paper, we analyze idle band integration in a cooperative network using multiple relays between a source-destination pair. We propose a simple protocol which allows some relays in the system to assist the source in aggregating a few idle bands through to the destination. As a whole, this enables the source-destination link to utilize a larger integrated bandwidth. We analyze amplify-and-forward (AF) and decode-and-forward (DF) relaying and derive a generalized closed form expression for the outage probability of the system applicable to both scenarios. We also investigate the system performance under different sets of conditions and discover some important tradeoffs.

Original languageEnglish
Title of host publication2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
Pages2723-2727
Number of pages5
DOIs
Publication statusPublished - 2013
Event2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 - London, United Kingdom
Duration: 8 Sep 201311 Sep 2013

Other

Other2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
CountryUnited Kingdom
CityLondon
Period8/9/1311/9/13

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Keywords

  • Cognitive radio
  • Cooperative communications
  • Spectrum aggregation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Hussain, S. I., & Qaraqe, K. (2013). Cooperative relaying for idle band integration in spectrum sharing systems. In 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 (pp. 2723-2727). [6666609] https://doi.org/10.1109/PIMRC.2013.6666609