Differential spatial modulation for high-rate transmission systems

Nguyen, Thu Phuong, Tran, Xuan Nam, Le, Minh-Tuan and Nguyen, Huan X. ORCID: https://orcid.org/0000-0002-4105-2558 (2018) Differential spatial modulation for high-rate transmission systems. EURASIP Journal on Wireless Communications and Networking, 2018 (1) . ISSN 1687-1472 [Article] (doi:10.1186/s13638-017-1013-1)

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Abstract

This paper introduces a new differential spatial modulation (DSM) scheme which subsumes both the previously introduced DSM and high-rate spatial modulation (HR-SM) for wireless multiple input multiple output (MIMO) transmission. By combining the codeword design method of the HR-SM scheme with the encoding method of the DSM scheme, we develop a high-rate differential spatial modulation (HR-DSM) scheme equipped with an arbitrary number of transmit antennas that requires channel state information (CSI) neither at the transmitter nor at the receiver. The proposed approach can be applied to any equal energy signal constellations. The bit error rate (BER) performance of the proposed HR-DSM schemes is evaluated by using both theoretical upper bound and computer simulations. It is shown that for the same spectral efficiency and antenna configuration, the proposed HR-DSM outperforms the DSM in terms of bit error rate (BER) performance.

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