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Various linear transceiver design methods have been developed in three-node amplify-and-forward (AF) multiple-input-multiple-output (MIMO) relay systems. Nonlinear designs in such systems, however, have yet to be investigated. In this paper, we propose nonlinear transceiver designs for a linear source and relay precoded system with the QR successive-interference-cancellation (SIC) receiver and another...
In this paper, an adaptive space-time receiver for cooperative relay networks is proposed. Using cooperative amplify-and-forward relay nodes, it is possible to increasing the rank of the multiple-input multiple-output (MIMO) channel. The proposed receiver is based on a joint adaptive iterative detection and decoding algorithm, adaptively cancels co-channel interference and eliminates the multiple...
In this paper, we introduce a collaborative minimum mean squared error (MMSE) interference canceler in MIMO relay networks. The proposed receiver architecture is characterized by the integration of the generalized minimum residual method (GMRES) for symbol detection. In this scheme, the GMRES method detects the transmitted symbols by solving iteratively a linear system representing the MMSE interference...
In this paper, we investigate cooperative OFDM communications using amplify-and-forward (AF) protocol at the relays, in the presence of imperfect timing synchronization. In most studies on cooperative communications, perfect time synchronization among cooperating nodes is assumed. In practice, however, due to imperfect time synchronization, orthogonality among the subcarriers of the different nodes'...
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