A spectrally efficient nonorthogonal amplify-and-forward protocol for cooperative wireless networks

Kefei Lu, Jing Liu, Xiaodong Cai

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

Abstract

In wireless systems where half duplex transceivers are employed, most existing practical cooperative protocols achieve a spectral efficiency of 0.5 symbols per channel use (pcu). Recently a decode-and-forward protocol was developed to achieve a spectral efficiency of 2/3 symbols pcu. But there is no practical amplify-and-forward (AF) protocol that can achieve a spectral efficiency higher than 0.5 symbols pcu. In this paper, we develop a nonorthogonal AF protocol which achieves a spectral efficiency of 2/3 symbols pcu and provides almost the same bit error rate as the traditional orthogonal AF which has a spectral efficiency of 0.5 symbols pcu.

Original languageEnglish (US)
Title of host publication2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010 - Proceedings
Pages3018-3021
Number of pages4
DOIs
StatePublished - Nov 8 2010
Event2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010 - Dallas, TX, United States
Duration: Mar 14 2010Mar 19 2010

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISSN (Print)1520-6149

Other

Other2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010
CountryUnited States
CityDallas, TX
Period3/14/103/19/10

Keywords

  • Amplify-and-forward
  • Cooperative communications
  • Diversity-multiplexing tradeoff

ASJC Scopus subject areas

  • Signal Processing
  • Software
  • Electrical and Electronic Engineering

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  • Cite this

    Lu, K., Liu, J., & Cai, X. (2010). A spectrally efficient nonorthogonal amplify-and-forward protocol for cooperative wireless networks. In 2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010 - Proceedings (pp. 3018-3021). [5496116] (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings). https://doi.org/10.1109/ICASSP.2010.5496116