Open/Closed-loop Transmit Antenna Array over Spatially Correlated Channels

  • Jinho Choi
  • Seung Won Choi
Part of the Signals and communication technology book series (SCT)

Abstract

In this paper, we consider some open-loop and closed-loop transmit antenna array (TAA) systems under a spatially correlated fading channel environment. It has been shown that the proposed open-loop TAA system can achieve more than 3 dB signal-to-noise ratio (SNR) performance improvement at a bit error rate (BER) of 10−1 ~ 10−2 with a TAA of 9 antenna elements. This performance has been obtained by utilizing statistical properties of spatially correlated channels (or long-term spatial channel properties). We also propose some approaches for closed-loop TAA systems with feedback of partial channel information. Generally, the performance of the closed-loop TAA system exceeds that of the open-loop TAA system. The closed-loop TAA system can exploit the trade-off between the performance and the amount of feedback.

Keywords

Microwave Attenuation Covariance Coherence Expense 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Jinho Choi
    • 1
    • 2
  • Seung Won Choi
    • 1
    • 2
  1. 1.School of Electrical Eng. & Telcomm.The University of New South Wales, UNSWSydneyAustralia
  2. 2.School of Electrical and Computer Eng.Hanyang UniversitySeoulKorea

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