Adaptive beamforming designs for MIMO AF relaying systems with direct link

Han Bae Kong, Changick Song, Haewook Park, Inkyu Lee

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

2 Citations (Scopus)

Abstract

In this paper, we propose a new beamforming technique for signal-to-noise ratio maximization in nonregenerative multiple-input multiple-output cooperative relaying systems where a non-negligible direct link between the source and the destination exists. Instead of conventional optimal schemes resorting to an iterative method such as a gradient ascent algorithm, we provide a simple closed form solution for source-relay joint beamformer designs. To this end, we apply the error decomposition property which allows us to separate the problem into two phases. Then, we propose a new beamforming scheme which adaptively aligns the transmit signal to each phase depending on the channel condition. From simulation results, we confirm that the proposed technique obtains the near-optimal performance.

Original languageEnglish
Title of host publicationIEEE International Conference on Communications
Pages5296-5300
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

Beamforming
MIMO systems
Iterative methods
Signal to noise ratio
Decomposition

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

Kong, H. B., Song, C., Park, H., & Lee, I. (2013). Adaptive beamforming designs for MIMO AF relaying systems with direct link. In IEEE International Conference on Communications (pp. 5296-5300). [6655428] https://doi.org/10.1109/ICC.2013.6655428

Adaptive beamforming designs for MIMO AF relaying systems with direct link. / Kong, Han Bae; Song, Changick; Park, Haewook; Lee, Inkyu.

IEEE International Conference on Communications. 2013. p. 5296-5300 6655428.

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

Kong, HB, Song, C, Park, H & Lee, I 2013, Adaptive beamforming designs for MIMO AF relaying systems with direct link. in IEEE International Conference on Communications., 6655428, pp. 5296-5300, 2013 IEEE International Conference on Communications, ICC 2013, Budapest, Hungary, 13/6/9. https://doi.org/10.1109/ICC.2013.6655428
Kong HB, Song C, Park H, Lee I. Adaptive beamforming designs for MIMO AF relaying systems with direct link. In IEEE International Conference on Communications. 2013. p. 5296-5300. 6655428 https://doi.org/10.1109/ICC.2013.6655428
Kong, Han Bae ; Song, Changick ; Park, Haewook ; Lee, Inkyu. / Adaptive beamforming designs for MIMO AF relaying systems with direct link. IEEE International Conference on Communications. 2013. pp. 5296-5300
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