NDLI: On the Capacity Bounds of Beamforming over MISO Time-Selective Channels with Estimation Errors and Feedback Delay

Content Provider	IEEE Xplore Digital Library
Author	Lei Zhang Gang Wu Shaoqian Li
Copyright Year	2008
Description	Author affiliation: Nat. Key Lab. of Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu (Lei Zhang; Gang Wu; Shaoqian Li)
Abstract	We examine the ergodic capacity of beamforming over a multiple-input single-output (MISO) time-selective channel with channel estimation error and delayed limited feedback. At each frame, the receiver obtains the minimum mean squared error estimation of the channel, chooses a transmit beamforming vector, according to the error channel estimation, from a codebook based on random vector quantization design, and feeds back the corresponding index to the transmitter using a finite number of bits. We derive the bounds on the capacity, and show that the tightness of the lower and upper bounds, and the bounds decreasing with the increase of channel estimation error or normalized Doppler spread.
Starting Page	1
Ending Page	4
File Size	157892
Page Count	4
File Format	PDF
ISBN	9781424421077
DOI	10.1109/WiCom.2008.104
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Estimation error Upper bound Array signal processing Error analysis Transmitters Vector quantization Feedback Channel estimation Delay estimation Feeds
Content Type	Text
Resource Type	Article

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On the Capacity Bounds of Beamforming over MISO Time-Selective Channels with Estimation Errors and Feedback Delay