Optimal power allocation for layered broadcast over amplify-and-forward relay channels

Mohamed Adel Attia, Mohammad Shaqfeh, Karim Seddik, Hussein Alnuweiri

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

3 Citations (Scopus)

Abstract

In this paper, we consider a fading relay channel where the source uses multilayer source coding with successive refinement. The source layers are transmitted using superposition coding at the source with optimal power allocation. The relay uses the simple half-duplex amplify-and-forward strategy. The destination applies successive interference cancellation after optimally combining the direct and relayed signals. The power allocation for the source layers at the source is subject to optimization in order to maximize the expected user satisfaction that is defined by a utility function of the total decoded rates at the destination. We propose an approximation for the distribution of the end-to-end channel quality. We assume that only the channel statistics are known. We characterize the expected utility function in terms of the channel statistics of the fading channels, and we solve the optimization problem for any number of source layers. We provide numerical examples to show the prospected gains of using the relay on the expected utility for different channel conditions. Furthermore, we obtain that for some conditions, it is optimal to send only one layer.

Original languageEnglish
Title of host publication2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages727-731
Number of pages5
ISBN (Electronic)9781479970889
DOIs
Publication statusPublished - 5 Feb 2014
Event2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014 - Atlanta, United States
Duration: 3 Dec 20145 Dec 2014

Other

Other2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014
CountryUnited States
CityAtlanta
Period3/12/145/12/14

Fingerprint

Statistics
Fading channels
Multilayers

ASJC Scopus subject areas

  • Signal Processing
  • Information Systems

Cite this

Attia, M. A., Shaqfeh, M., Seddik, K., & Alnuweiri, H. (2014). Optimal power allocation for layered broadcast over amplify-and-forward relay channels. In 2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014 (pp. 727-731). [7032214] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GlobalSIP.2014.7032214

Optimal power allocation for layered broadcast over amplify-and-forward relay channels. / Attia, Mohamed Adel; Shaqfeh, Mohammad; Seddik, Karim; Alnuweiri, Hussein.

2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 727-731 7032214.

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

Attia, MA, Shaqfeh, M, Seddik, K & Alnuweiri, H 2014, Optimal power allocation for layered broadcast over amplify-and-forward relay channels. in 2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014., 7032214, Institute of Electrical and Electronics Engineers Inc., pp. 727-731, 2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014, Atlanta, United States, 3/12/14. https://doi.org/10.1109/GlobalSIP.2014.7032214
Attia MA, Shaqfeh M, Seddik K, Alnuweiri H. Optimal power allocation for layered broadcast over amplify-and-forward relay channels. In 2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 727-731. 7032214 https://doi.org/10.1109/GlobalSIP.2014.7032214
Attia, Mohamed Adel ; Shaqfeh, Mohammad ; Seddik, Karim ; Alnuweiri, Hussein. / Optimal power allocation for layered broadcast over amplify-and-forward relay channels. 2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 727-731
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