On the number of relays for orthogonalize-and-forward relaying

Yue Yang, Xudong Wang, Xiaodong Cai

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

6 Scopus citations

Abstract

Relaying can significantly improve spectral efficiency and extend coverage of two-hop wireless communications between two end nodes. To support the relaying transmission between multiple end nodes, technologies like orthogonalize-and-forward (OF) Relaying are proposed, which can also achieve interference-free communications between end nodes. However, this scheme requires a large number of relays. Therefore, in this paper, we investigate three modified OF Relaying schemes with fewer relays and derived their transmission rate respectively. They are fair OF Relaying with insufficient relays, OF Relaying with Pre-coding and Group Division OF Relaying. The numerical results show that these schemes can reduce the number of relays. Furthermore, OF Relaying with pre-coding can also achieve ideal transmission rate.

Original languageEnglish (US)
Title of host publication2011 International Conference on Wireless Communications and Signal Processing, WCSP 2011
DOIs
StatePublished - Dec 1 2011
Event2011 International Conference on Wireless Communications and Signal Processing, WCSP 2011 - Nanjing, China
Duration: Nov 9 2011Nov 11 2011

Publication series

Name2011 International Conference on Wireless Communications and Signal Processing, WCSP 2011

Other

Other2011 International Conference on Wireless Communications and Signal Processing, WCSP 2011
CountryChina
CityNanjing
Period11/9/1111/11/11

Keywords

  • Orthogonalize-and-Forward Relaying
  • Pre-coding
  • Relaying

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

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