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This paper presents a new double space-time transmit diversity (DSTTD) transceiver exploiting the special structure of the channel matrix. This accounts for accomplishing very low complexity maximum-likelihood (ML) detector. First, the proposed ML detector requires significantly fewer computations than that of the Schnorr-Euchner sphere decoding (SE-SD) algorithm in respective of both the worst-case...
We present two ordered successive interference cancellation (OSIC) schemes using the QR decomposition for the double space-time transmit diversity (DSTTD) system. These are designed by zero-forcing (ZF) and minimum-mean-squared error (MMSE) criteria. The computational complexity is significantly reduced by utilizing special structure of the channel matrix. These schemes require fewer computations...
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