To cooperate, or not to cooperate in imperfectly-known fading channels

Junwei Zhang, Mustafa Cenk Gursoy

Research output: Contribution to conferencePaper

1 Scopus citations

Abstract

In this paper, communication over imperfectly-known fading channels with different degrees of cooperation is studied. The three-node relay channel is considered. It is assumed that communication starts with the network training phase in which the receivers estimate the fading coefficients of their respective channels. In the data transmission phase, amplify-and-forward and decode-and-forward relaying schemes are employed. For different cooperation protocols, achievable rate expressions are obtained. These achievable rate expressions are then used to find the optimal resource allocation strategies. In particular, the fraction of total time or bandwidth that needs to be allocated to the relay for best performance is identified. Under a total power constraint, optimal allocation of power between the source and relay is investigated. Finally, bit energy requirements in the low-power regime are studied.

Original languageEnglish (US)
Pages461-465
Number of pages5
DOIs
StatePublished - Dec 1 2008
Externally publishedYes
Event2008 IEEE 9th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2008 - Recife, Brazil
Duration: Jul 6 2008Jul 9 2008

Other

Other2008 IEEE 9th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2008
CountryBrazil
CityRecife
Period7/6/087/9/08

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Information Systems

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    Zhang, J., & Gursoy, M. C. (2008). To cooperate, or not to cooperate in imperfectly-known fading channels. 461-465. Paper presented at 2008 IEEE 9th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2008, Recife, Brazil. https://doi.org/10.1109/SPAWC.2008.4641650