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Impact of Feedback Error on Transmit Beamforming with Finite Rate Feedback
Pengcheng ZHU Lan TANG Yan WANG Xiaohu YOU
Publication
IEICE TRANSACTIONS on Communications
Vol.E90-B
No.9
pp.2600-2604 Publication Date: 2007/09/01 Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.9.2600 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: transmit beamforming, feedback error, BER,
Full Text: PDF(159KB)>>
Summary:
In this letter, we study the impact of feedback error on transmit beamforming systems with finite rate feedback. The feedback channel is modeled as a uniform symmetric channel. The outage probability, bit error rate (BER), diversity gain, and array gain formulas are given. Both analytical and simulation results show that feedback error with small probability will make the system behave badly at high signal-to-noise ratios (SNR).
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