Sensitivity of feedback channel delay on transmit adaptive array

Cheol Yong Ahn, Jin Kyu Han, Young Kwan Choi, Dong Ku Kim

Research output: Contribution to journalConference article

Abstract

The investigation into the effect of various feedback errors on system performance can help the robust feedback channel design and transmission of exact feedback channel information as well. In this paper, we address the algorithm that determines space combing weight vector maximizing received signal power at mobile on frequency flat fading channel and investigate the performance degradation by feedback channel delay in the FDD/CDMA systems employing transmit beamforming. We observe the effect of feedback channel delay corresponding to the number of transmit antennas and the temporal/spatial correlation of channel. The results show that performance is more sensitive to feedback delay with the larger number of antennas when fadings at transmit antennas are not spatially correlated.

Original languageEnglish
Pages (from-to)556-559
Number of pages4
JournalIEEE Vehicular Technology Conference
Volume2
Publication statusPublished - 2002 Jan 1

Fingerprint

Feedback
Antenna
Antennas
Feedback Delay
Temporal Correlation
Code Division multiple Access
Beamforming
Spatial Correlation
Fading Channels
Fading
System Performance
Degradation
Fading channels
Code division multiple access

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Ahn, Cheol Yong ; Han, Jin Kyu ; Choi, Young Kwan ; Kim, Dong Ku. / Sensitivity of feedback channel delay on transmit adaptive array. In: IEEE Vehicular Technology Conference. 2002 ; Vol. 2. pp. 556-559.
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Sensitivity of feedback channel delay on transmit adaptive array. / Ahn, Cheol Yong; Han, Jin Kyu; Choi, Young Kwan; Kim, Dong Ku.

In: IEEE Vehicular Technology Conference, Vol. 2, 01.01.2002, p. 556-559.

Research output: Contribution to journalConference article

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