Closed-form designs for source-relay joint precoder in MIMO AF relaying systems with decision feedback receiver

Taehoon Kim, Changick Song, Inkyu Lee

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

2 Citations (Scopus)

Abstract

In this paper, we provide a new design scheme which jointly optimizes the source and relay precoders in multiple-input multiple-output amplify-and-forward relaying systems with minimum mean-squared error (MMSE) decision feedback equalizer (DFE) at the destination node. Instead of conventional optimal designs which require an iterative method, we propose a simple and near optimal closed-form scheme. First, we extend the decomposable property of the error covariance matrix based on linear MMSE receiver to our case. Next, we suggest a new scheme which jointly finds the source and relay precoders with a closed-form solution. Simulation results demonstrate that the performance of the proposed method is less than 1 dB away from the optimal solution with much reduced complexity.

Original languageEnglish
Title of host publicationIEEE International Conference on Communications
Pages5532-5536
Number of pages5
DOIs
Publication statusPublished - 2013 Dec 1
Event2013 IEEE International Conference on Communications, ICC 2013 - Budapest, Hungary
Duration: 2013 Jun 92013 Jun 13

Other

Other2013 IEEE International Conference on Communications, ICC 2013
CountryHungary
CityBudapest
Period13/6/913/6/13

Fingerprint

MIMO systems
Feedback
Decision feedback equalizers
Covariance matrix
Iterative methods

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

Closed-form designs for source-relay joint precoder in MIMO AF relaying systems with decision feedback receiver. / Kim, Taehoon; Song, Changick; Lee, Inkyu.

IEEE International Conference on Communications. 2013. p. 5532-5536 6655472.

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

Kim, T, Song, C & Lee, I 2013, Closed-form designs for source-relay joint precoder in MIMO AF relaying systems with decision feedback receiver. in IEEE International Conference on Communications., 6655472, pp. 5532-5536, 2013 IEEE International Conference on Communications, ICC 2013, Budapest, Hungary, 13/6/9. https://doi.org/10.1109/ICC.2013.6655472
Kim, Taehoon ; Song, Changick ; Lee, Inkyu. / Closed-form designs for source-relay joint precoder in MIMO AF relaying systems with decision feedback receiver. IEEE International Conference on Communications. 2013. pp. 5532-5536
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