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 articlepeer-review


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
Publication statusPublished - 2002
EventVehicular Technology Conference - Birmingham, AL, United States
Duration: 2002 May 62002 May 9

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


Dive into the research topics of 'Sensitivity of feedback channel delay on transmit adaptive array'. Together they form a unique fingerprint.

Cite this