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In this paper, an order reduction maximum likelihood (OR-ML) algorithm for spatial modulation systems is proposed to reduce the receiver complexity. The proposed algorithm relies on a smaller order neighbourhood constellation which is relative to the conventional mapping constellation, where the active transmitting antenna indices or the possible quadrant transmission symbols locate in is obtained...
In the uplink of interleaved orthogonal frequency division multiple access (OFDMA) systems, multiuser interference (MUI) occurs due to different carrier frequency offsets (CFOs) from different users at the receiver. In this paper, a novel scheme is presented to compensate the multiple CFOs at the interleaved OFDMA receiver. The proposed scheme is based on a calculation of optimum CFO correction value...
SC-FDMA (Single carrier frequency division multiple access) has been adopted as the uplink transmission scheme in 3GPP LTE (3rd Generation Partnership Project Long Term Evolution). MIMO (Multiple-input multiple-output) SC-FDMA, which combines the advantages of spatial and frequency diversities with FDE (frequency domain equalizers), has drawn great attention recently. This paper proposes MIMO FDE...
This paper presents a performance analysis of vector orthogonal frequency division multiplexing (VOFDM) in multipath fading channel to investigate its diversity gain, performance limitation and the choice of dimension in the vector block for the design of a low-complexity receiver. Based on the analytically derivation, it is first verified that VOFDM can realize the maximum diversity gain while the...
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