Resource allocation for cooperative relaying

Jie Yang, Deniz Gündüz, D. Richard Brown, Elza Erkip

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

Abstract

The delay-limited capacity of the half-duplex relay channel is analyzed for several cooperative protocols under a long-term average total transmit power constraint. It is assumed that the source and the relay have access to partial channel state information in the form of channel amplitudes. Nonorthogonal amplify-and-forward (NAF), compress-and-forward (CF) and opportunistic decode-and-forward (ODF) protocols are compared with optimal resource allocation, i.e., at each channel state, the source and the relay transmit with the minimum total power allocation required to achieve the target rate. A hybrid opportunistic protocol is proposed in which CF or ODF with optimal resource allocation is chosen at each channel state. Numerical results demonstrate that, while the hybrid protocol offers the best delay-limited capacity, ODF follows the hybrid scheme closely for a wide range of relay locations and average power constraints. We also consider various low complexity protocols such as fixed time allocation and the estimate-andforward (EF) protocol in order to analyze the trade-off between the system complexity and delay-limited capacity.

Original languageEnglish (US)
Title of host publicationCISS 2008, The 42nd Annual Conference on Information Sciences and Systems
Pages848-853
Number of pages6
DOIs
StatePublished - 2008
EventCISS 2008, 42nd Annual Conference on Information Sciences and Systems - Princeton, NJ, United States
Duration: Mar 19 2008Mar 21 2008

Publication series

NameCISS 2008, The 42nd Annual Conference on Information Sciences and Systems

Other

OtherCISS 2008, 42nd Annual Conference on Information Sciences and Systems
CountryUnited States
CityPrinceton, NJ
Period3/19/083/21/08

ASJC Scopus subject areas

  • Computer Science Applications
  • Information Systems
  • Control and Systems Engineering

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  • Cite this

    Yang, J., Gündüz, D., Brown, D. R., & Erkip, E. (2008). Resource allocation for cooperative relaying. In CISS 2008, The 42nd Annual Conference on Information Sciences and Systems (pp. 848-853). [4558638] (CISS 2008, The 42nd Annual Conference on Information Sciences and Systems). https://doi.org/10.1109/CISS.2008.4558638