Low complexity transmit antenna selection with power balancing in OFDM systems

Ki Hong Park, Young-Chai Ko, Mohamed Slim Alouini

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

Abstract

In this paper, we consider multi-carrier systems with multiple transmit antennas under a power balancing constraint. Applying transmit antenna selection and fixed-power variable-rate transmission per subcarrier as a function of channel variations, we propose an implementation-friendly antenna selection method which offers a reduced complexity in comparison with the optimal antenna selection scheme, which uses numerical optimization. More specifically, in order to solve the subcarrier imbalance across the antennas, we operate a two-step reallocation procedure in order to minimize loss of spectral efficiency. We also provide an analytic lower bound on the spectral efficiency for the proposed scheme. Although this scheme is suboptimal, we show based on some selected numerical examples that our proposed scheme offers almost the same spectral efficiency as the optimal scheme.

Original languageEnglish
Title of host publicationIEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
Pages359-363
Number of pages5
DOIs
Publication statusPublished - 2009 Nov 20
Event2009 IEEE 10th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2009 - Perugia, Italy
Duration: 2009 Jun 212009 Jun 24

Other

Other2009 IEEE 10th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2009
CountryItaly
CityPerugia
Period09/6/2109/6/24

Fingerprint

Orthogonal frequency division multiplexing
Antennas

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Information Systems

Cite this

Park, K. H., Ko, Y-C., & Alouini, M. S. (2009). Low complexity transmit antenna selection with power balancing in OFDM systems. In IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC (pp. 359-363). [5161807] https://doi.org/10.1109/SPAWC.2009.5161807

Low complexity transmit antenna selection with power balancing in OFDM systems. / Park, Ki Hong; Ko, Young-Chai; Alouini, Mohamed Slim.

IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC. 2009. p. 359-363 5161807.

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

Park, KH, Ko, Y-C & Alouini, MS 2009, Low complexity transmit antenna selection with power balancing in OFDM systems. in IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC., 5161807, pp. 359-363, 2009 IEEE 10th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2009, Perugia, Italy, 09/6/21. https://doi.org/10.1109/SPAWC.2009.5161807
Park KH, Ko Y-C, Alouini MS. Low complexity transmit antenna selection with power balancing in OFDM systems. In IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC. 2009. p. 359-363. 5161807 https://doi.org/10.1109/SPAWC.2009.5161807
Park, Ki Hong ; Ko, Young-Chai ; Alouini, Mohamed Slim. / Low complexity transmit antenna selection with power balancing in OFDM systems. IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC. 2009. pp. 359-363
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