Frugal channel tracking for transmit beamforming

Omar Mehanna; Nicholas D. Sidiropoulos

doi:10.1109/ACSSC.2014.7094602

Frugal channel tracking for transmit beamforming

Omar Mehanna, Nicholas D. Sidiropoulos

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

Channel state feedback is a serious burden for transmit beamforming systems with many antennas in FDD mode. Instead of estimating the channel at the receiver and feeding back quantized beamformer information, a different approach that exploits the spatio-temporal correlation of the channel is proposed. The transmitter periodically sends a beamformed pilot signal, while the receiver feeds back the quantized innovation derived from either a Kalman filtering or a MAP tracking loop. Simulations show that close to optimum performance can be attained with only 2 bits per channel dwell, clearing a hurdle for transmit beamforming with many antennas in FDD mode.

Original language	English (US)
Title of host publication	Conference Record of the 48th Asilomar Conference on Signals, Systems and Computers
Editors	Michael B. Matthews
Publisher	IEEE Computer Society
Pages	993-997
Number of pages	5
ISBN (Electronic)	9781479982974
DOIs	https://doi.org/10.1109/ACSSC.2014.7094602
State	Published - Apr 24 2015
Event	48th Asilomar Conference on Signals, Systems and Computers, ACSSC 2015 - Pacific Grove, United States Duration: Nov 2 2014 → Nov 5 2014

Publication series

Name	Conference Record - Asilomar Conference on Signals, Systems and Computers
Volume	2015-April
ISSN (Print)	1058-6393

Other

Other	48th Asilomar Conference on Signals, Systems and Computers, ACSSC 2015
Country	United States
City	Pacific Grove
Period	11/2/14 → 11/5/14

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10.1109/ACSSC.2014.7094602

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Mehanna, O., & Sidiropoulos, N. D. (2015). Frugal channel tracking for transmit beamforming. In M. B. Matthews (Ed.), Conference Record of the 48th Asilomar Conference on Signals, Systems and Computers (pp. 993-997). [7094602] (Conference Record - Asilomar Conference on Signals, Systems and Computers; Vol. 2015-April). IEEE Computer Society. https://doi.org/10.1109/ACSSC.2014.7094602

Frugal channel tracking for transmit beamforming. / Mehanna, Omar; Sidiropoulos, Nicholas D.

Conference Record of the 48th Asilomar Conference on Signals, Systems and Computers. ed. / Michael B. Matthews. IEEE Computer Society, 2015. p. 993-997 7094602 (Conference Record - Asilomar Conference on Signals, Systems and Computers; Vol. 2015-April).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Mehanna, O & Sidiropoulos, ND 2015, Frugal channel tracking for transmit beamforming. in MB Matthews (ed.), Conference Record of the 48th Asilomar Conference on Signals, Systems and Computers., 7094602, Conference Record - Asilomar Conference on Signals, Systems and Computers, vol. 2015-April, IEEE Computer Society, pp. 993-997, 48th Asilomar Conference on Signals, Systems and Computers, ACSSC 2015, Pacific Grove, United States, 11/2/14. https://doi.org/10.1109/ACSSC.2014.7094602

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abstract = "Channel state feedback is a serious burden for transmit beamforming systems with many antennas in FDD mode. Instead of estimating the channel at the receiver and feeding back quantized beamformer information, a different approach that exploits the spatio-temporal correlation of the channel is proposed. The transmitter periodically sends a beamformed pilot signal, while the receiver feeds back the quantized innovation derived from either a Kalman filtering or a MAP tracking loop. Simulations show that close to optimum performance can be attained with only 2 bits per channel dwell, clearing a hurdle for transmit beamforming with many antennas in FDD mode.",

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AB - Channel state feedback is a serious burden for transmit beamforming systems with many antennas in FDD mode. Instead of estimating the channel at the receiver and feeding back quantized beamformer information, a different approach that exploits the spatio-temporal correlation of the channel is proposed. The transmitter periodically sends a beamformed pilot signal, while the receiver feeds back the quantized innovation derived from either a Kalman filtering or a MAP tracking loop. Simulations show that close to optimum performance can be attained with only 2 bits per channel dwell, clearing a hurdle for transmit beamforming with many antennas in FDD mode.

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Frugal channel tracking for transmit beamforming

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