Multiple-antenna multiple-relay system with precoding for multiuser transmission
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Relay architectures for 3GPP LTE-advanced
EURASIP Journal on Wireless Communications and Networking - 3GPP LTE and LTE Advanced
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Joint linear filter design in multi-user cooperative non-regenerative MIMO relay systems
EURASIP Journal on Wireless Communications and Networking - Special issue on optimization techniques in wireless communications
A novel signaling for communication on MIMO Y channel: signal space alignment for network coding
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Covariance based linear precoding in amplify-and-forward cooperative networks
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Joint linear filter design in multi-user non-regenerative MIMO-relay systems
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Power allocation for a MIMO relay system with multiple-antenna users
IEEE Transactions on Signal Processing
IEEE Transactions on Communications
Degrees of freedom of the MIMO Y channel: signal space alignment for network coding
IEEE Transactions on Information Theory
Minimum MSE design for multiuser MIMO relay
IEEE Communications Letters
IEEE Transactions on Signal Processing
IEEE Communications Letters
IEEE Transactions on Signal Processing
Transceiver design for dual-hop nonregenerative MIMO-OFDM relay systems under channel uncertainties
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing
Transparent amplify-and-forward relaying in MIMO relay channels
IEEE Transactions on Wireless Communications
EURASIP Journal on Wireless Communications and Networking - Special issue on interference management in wireless communication systems: theory and applications
Energy Consumption in Downlink MIMO Relay Systems with Multiple Users
GREENCOM-CPSCOM '10 Proceedings of the 2010 IEEE/ACM Int'l Conference on Green Computing and Communications & Int'l Conference on Cyber, Physical and Social Computing
EURASIP Journal on Advances in Signal Processing
Relay Selection Algorithm with Simplified Precoding for MIMO Multiple Relay Channels
Wireless Personal Communications: An International Journal
Joint precoding and power allocation for multiuser transmission in MIMO relay networks
International Journal of Communication Systems
Wireless Personal Communications: An International Journal
Weighted Sum Rate Maximization for Downlink Multiuser Relay Network with Direct Link
Wireless Personal Communications: An International Journal
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In this paper, a novel relaying strategy that uses multiple-input multiple-output (MIMO) fixed relays with linear processing to support multiuser transmission in cellular networks is proposed. The fixed relay processes the received signal with linear operations and forwards the processed signal to multiple users creating a multiuser MIMO relay. This paper proposes upper and lower bounds on the achievable sum rate for this architecture assuming zero-forcing dirty paper coding at the base station, neglecting the direct links from the base station to the users, and with certain structure in the relay. These bounds are used to motivate an implementable multiuser precoding strategy that combines Tomlinson-Harashima precoding at the base station and linear signal processing at the relay, adaptive stream selection, and QAM modulation. Reduced complexity algorithms based on the sum rate lower bounds are used to select a subset of users. We compare the sum rates achieved by the proposed system architecture and algorithms with the sum rate upper bound and the sum rate achieved by the decode-and-forward relaying.