Half-duplex decode-oartial-forward

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

1 Citation (Scopus)

Abstract

We propose a new transmission scheme, which we call Decode-Partial-Forward (DPF), for orthogonal half-duplex relay channels. We demonstrate that the DPF scheme achieves significantly higher rates than the conventional DF scheme that is based on repetition coding and it performs close to the capacity bounds of DF relaying. In DPF, the source superimposes two separate codewords and the relay decodes both codewords but it regenerates (forwards) "the more difficult to decode" codeword only. The destination node applies successive interference cancellation in order to decode the two codewords based on the received signals in both time slots. We provide a closed-form solution to find the optimal power and rate allocation for the two superimposed code-words in order to maximize the sum achievable rate. The DPF scheme provides a simple and practical alternative to the advanced cooperative coding techniques.

Original languageEnglish
Title of host publication2012 10th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, WiOpt 2012
Pages208-215
Number of pages8
Publication statusPublished - 5 Oct 2012
Event2012 10th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, WiOpt 2012 - Paderborn, Germany
Duration: 14 May 201218 May 2012

Publication series

Name2012 10th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, WiOpt 2012

Other

Other2012 10th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, WiOpt 2012
CountryGermany
CityPaderborn
Period14/5/1218/5/12

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Keywords

  • Decode-and-forward
  • FD-AWGN relay channel
  • Successive decoding
  • Superposition coding

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Control and Optimization
  • Modelling and Simulation

Cite this

Shaqfeh, M., & Alnuweiri, H. (2012). Half-duplex decode-oartial-forward. In 2012 10th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, WiOpt 2012 (pp. 208-215). [6260457] (2012 10th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, WiOpt 2012).