Minimum sum expected distortion in cooperative networks

Shaolei Ren, Khaled Letaief

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

3 Citations (Scopus)

Abstract

In this paper, we consider a wireless cooperative multimedia decode-and-forward network wherein one relay may assist multiple source-destination pairs. By exploiting the global channel state information at the relay, we propose a power allocation, a time allocation and an iterative joint power-time allocation algorithm to minimize the sum expected distortion. Firstly, we separately optimize the relay's transmission power and the system transmission time allocated to each source-destination pair such that the sum expected distortion can be minimized. Then, we propose an iterative joint power-time allocation algorithm subject to the relay's total power constraint to further improve the distortion performance. The proposed iterative algorithm is guaranteed to converge to an optimal, despite not necessarily globally optimal, point and can achieve the minimum sum expected distortion among all the schemes.

Original languageEnglish
Title of host publicationProceedings - 2009 IEEE International Conference on Communications, ICC 2009
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event2009 IEEE International Conference on Communications, ICC 2009 - Dresden, Germany
Duration: 14 Jun 200918 Jun 2009

Other

Other2009 IEEE International Conference on Communications, ICC 2009
CountryGermany
CityDresden
Period14/6/0918/6/09

Fingerprint

Channel state information
Power transmission

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Ren, S., & Letaief, K. (2009). Minimum sum expected distortion in cooperative networks. In Proceedings - 2009 IEEE International Conference on Communications, ICC 2009 [5199184] https://doi.org/10.1109/ICC.2009.5199184

Minimum sum expected distortion in cooperative networks. / Ren, Shaolei; Letaief, Khaled.

Proceedings - 2009 IEEE International Conference on Communications, ICC 2009. 2009. 5199184.

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

Ren, S & Letaief, K 2009, Minimum sum expected distortion in cooperative networks. in Proceedings - 2009 IEEE International Conference on Communications, ICC 2009., 5199184, 2009 IEEE International Conference on Communications, ICC 2009, Dresden, Germany, 14/6/09. https://doi.org/10.1109/ICC.2009.5199184
Ren S, Letaief K. Minimum sum expected distortion in cooperative networks. In Proceedings - 2009 IEEE International Conference on Communications, ICC 2009. 2009. 5199184 https://doi.org/10.1109/ICC.2009.5199184
Ren, Shaolei ; Letaief, Khaled. / Minimum sum expected distortion in cooperative networks. Proceedings - 2009 IEEE International Conference on Communications, ICC 2009. 2009.
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