Comparing the Direct Transmission, two-hop relaying and cooperative relaying schemes

A novel generalized iterative approach is proposed for designing the MMSE MIMO processors (precoders, relay processors and decoders) for two amplify-and-forward relaying schemes: two-hop (2Hop) and cooperative (Coop) relaying schemes. The MMSE design can be achieved for communication links with two end nodes and multiple relay nodes (all nodes with multiple antennas) subject to either the per-node power constraint or the per-antenna power constraint. Simulation results show that there exist circumstances where 2Hop performs as well as Coop. In addition, there exist scenarios that the conventional Direct Transmission (DT) scheme can actually outperform Coop if optimum modulation coding schemes and sophisticated cooperation protocols are not employed for Coop.

[1]  Yue Rong.  Non-Regenerative Multicarrier MIMO Relay Communications Based on Minimization of Mean-Squared Error , 2009, 2009 IEEE International Conference on Communications.

[2]  John M. Cioffi,et al.  Joint Tx-Rx beamforming design for multicarrier MIMO channels: a unified framework for convex optimization , 2003, IEEE Trans. Signal Process..

[3]  Daniel Pérez Palomar,et al.  Unified framework for linear MIMO transceivers with shaping constraints , 2004, IEEE Communications Letters.

[4]  Kyoung-Jae Lee,et al.  Joint MMSE Transceiver Design for MIMO Amplify-and-Forward Relay Systems with Multiple Relays , 2009, 2009 IEEE 70th Vehicular Technology Conference Fall.

[5]  Yue Rong,et al.  A Unified Framework for Optimizing Linear Nonregenerative Multicarrier MIMO Relay Communication Systems , 2009, IEEE Transactions on Signal Processing.

[6]  I-Tai Lu,et al.  Optimum MMSE transceiver designs for the downlink of multicell MIMO systems , 2009, MILCOM 2009 - 2009 IEEE Military Communications Conference.

[7]  I-Tai Lu,et al.  Novel MMSE precoder and decoder designs subject to per-antenna power constraint for uplink multiuser MIMO systems , 2009, 2009 3rd International Conference on Signal Processing and Communication Systems.

[8]  Yue Rong.  MMSE-Based Non-Regenerative Multicarrier MIMO Wireless Relay Communications with Direct Source-Destination Link , 2009, 2009 IEEE International Conference on Communications.

[9]  Ahmed M. Eltawil,et al.  Optimizations of a MIMO Relay Network , 2008, IEEE Transactions on Signal Processing.

[10]  Adrian Agustin,et al.  Linear Transceiver Design in Nonregenerative Relays With Channel State Information , 2007, IEEE Transactions on Signal Processing.

[11]  Wei Guan,et al.  Joint MMSE Transceiver Design in Non-Regenerative MIMO Relay Systems , 2008, IEEE Communications Letters.

[12]  Wen-Rong Wu,et al.  Linear MMSE Transceiver Design in Amplify-and-Forward MIMO Relay Systems , 2010, IEEE Transactions on Vehicular Technology.

[13]  Yingbo Hua,et al.  Joint Source and Relay Optimization for a Non-Regenerative MIMO Relay , 2006, Fourth IEEE Workshop on Sensor Array and Multichannel Processing, 2006..

[14]  Wen-Rong Wu,et al.  Joint Source/Relay Precoder Design in Amplify-and-Forward Relay Systems Using an MMSE Criterion , 2009, 2009 IEEE Wireless Communications and Networking Conference.

[15]  Anna Scaglione,et al.  Optimal designs for space-time linear precoders and decoders , 2002, IEEE Trans. Signal Process..