Transmit Beamforming in Cooperative Networks

Cooperative relay communication systems has been extensively studied in recent years due to their ability to provide more reliable communications through enhanced diversity and to extend the range of the communication system. Equipping communication terminals with multiple antennas have similar adva...

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Main Authors: Chin, W.H., Sivagami, A.
Format: Conference Proceeding
Language:English
Subjects:
Array signal processing
Broadcasting
Channel state information
Communication channels
Computer network reliability
Degradation
Fading
Modulation coding
Relays
Telecommunication network reliability
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Sivagami, A.
description Cooperative relay communication systems has been extensively studied in recent years due to their ability to provide more reliable communications through enhanced diversity and to extend the range of the communication system. Equipping communication terminals with multiple antennas have similar advantages. In this paper, we look at a cooperative diversity system where the source node is equipped with multiple antennas. Assuming that the channel state information is available, we derive the optimal beamforming vector to maximize the capacity of the system. We will compare the optimal beamforming solution with a partially optimized solution. We will also investigate the impact of multiple relay nodes and increasing the available antennas at the source on the performance of the system.
doi_str_mv 10.1109/VETECS.2008.287
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Array signal processing
Broadcasting
Channel state information
Communication channels
Computer network reliability
Degradation
Fading
Modulation coding
Relays
Telecommunication network reliability
title Transmit Beamforming in Cooperative Networks
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