Filter-and-forward distributed beamforming for relay networks in frequency selective fading channels

A half-duplex distributed beamforming technique for relay networks with frequency selective fading channels is developed. The network relays use the filter-and-forward (FF) strategy to compensate for the transmitter-to-relay and relay-to-destination channels using finite impulse response (FIR) filte...

Full description

Saved in:
Bibliographic Details
Published in2009 IEEE International Conference on Acoustics, Speech and Signal Processing pp. 2269 - 2272
Main Authors Haihua Chen, Gershman, A.B., Shahbazpanahi, S.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2009
Subjects
Adaptive filters
Array signal processing
Cooperative communications
distributed beamforming
Fading
filter-and-forward
Finite impulse response filter
Frequency
Interference
Power system relaying
Quality of service
relay networks
Relays
Transmitters
Online AccessGet full text

Cover

More Information
Summary:A half-duplex distributed beamforming technique for relay networks with frequency selective fading channels is developed. The network relays use the filter-and-forward (FF) strategy to compensate for the transmitter-to-relay and relay-to-destination channels using finite impulse response (FIR) filters. With the channel state information (CSI) being available at the receiver, the transmit relay power is minimized subject to the destination quality-of-service (QoS) constraint. This distributed beamforming problem is shown to have a closed-form solution. Simulation results demonstrate substantial improvements in terms of the relay transmitted power and feasibility of the destination QoS constraint as compared to amplify-and-forward (AF) distributed beamforming techniques.
ISBN:9781424423538
1424423538
ISSN:1520-6149
DOI:10.1109/ICASSP.2009.4960072