On Limits of Wireless Communications in a Fading Environment when UsingMultiple Antennas
Wireless Personal Communications: An International Journal
Convex Optimization
On the Gaussian MIMO relay channel with full channel state information
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing
MMSE-based joint source and relay precoding design for amplify-and-forward MIMO relay networks
IEEE Transactions on Wireless Communications
Optimal designs for space-time linear precoders and decoders
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing
Linear transmit processing in MIMO communications systems
IEEE Transactions on Signal Processing - Part I
Complex-Valued Matrix Differentiation: Techniques and Key Results
IEEE Transactions on Signal Processing
Linear Transceiver Design in Nonregenerative Relays With Channel State Information
IEEE Transactions on Signal Processing
Capacity scaling laws in MIMO relay networks
IEEE Transactions on Wireless Communications
Optimal Design of Non-Regenerative MIMO Wireless Relays
IEEE Transactions on Wireless Communications
Bit-interleaved coded modulation
IEEE Transactions on Information Theory
Bounds on packings of spheres in the Grassmann manifold
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
On the capacity of MIMO relay channels
IEEE Transactions on Information Theory
Limited feedback unitary precoding for spatial multiplexing systems
IEEE Transactions on Information Theory
Fading relay channels: performance limits and space-time signal design
IEEE Journal on Selected Areas in Communications
Iterative detection and decoding with an improved V-BLAST for MIMO-OFDM systems
IEEE Journal on Selected Areas in Communications
Grassmannian beamforming for MIMO amplify-and-forward relaying
IEEE Journal on Selected Areas in Communications
Joint Source and Relay Precoder Design in Amplify-and-Forward MIMO Relay Systems with Direct Link
Wireless Personal Communications: An International Journal
A Low-Complexity Hybrid Framework for Combining-Type Non-regenerative MIMO Relaying
Wireless Personal Communications: An International Journal
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In this paper, we propose a new design strategy based on the minimum mean-squared error (MMSE) in closedloop non-regenerative multiple-input multiple-output relaying systems. Instead of conventional singular value decomposition based methods, we address the problem for joint MMSE design in a different approach using the Wiener filter solution which leads to simple derivations of the optimal MMSE designs. First, allowing the channel state information (CSI) at the source, we provide a new closed form solution for a source-relay-destination joint MMSE design by extending existing relay-destination joint MMSE designs. Second, for the limited feedback scenario, we address a codebook design criteria for the multiple streams precoding design with respect to the MMSE criterion. From our design strategy, we observe that compared to conventional non-regenerative relaying systems, the source or the destination only needs to know the CSI corresponding to its own link such as the source-to-relay or the relay-to-destination in view of the MMSE. Simulation results show that the proposed design gives about 7.5dB gains at a bit error rate of 10-4 over existing relaydestination joint MMSE schemes and we can get close to the optimal unquantized schemes with only a few feedback bits.