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The maximum-likelihood (ML) time-frequency synchronisation algorithm combined with channel estimation for multiple input multiple output-orthogonal frequency division multiplexing (MIMO-OFDM) systems in frequency selective fading channels is addressed. In the proposed algorithm, the authors use two steps to maximise an ML metric to obtain first the frequency offset and then timing. A fast Fourier...
New sphere decoding algorithms are proposed in this paper. In particular an iterative list branch and bound (BB) algorithm based on the basic BB algorithm is proposed in this paper, which can obtain a candidate list to compute soft information that is used in the iterative detector. Furthermore, an improved algorithm is proposed which uses the prior information from the preceding iteration to calculate...
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