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Multi-User Successive-Coded Spatial Modulation Scheme Based on Beamforming
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DOI：10.1109/TVT.2022.3183084.png)
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摘要
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By combining an existing successive-coded spatial shift keying (SC-SSK) modulation scheme with a modulation scheme that uses the traditional constellation, we propose a new successive coded spatial modulation (SC-SM) scheme. This scheme uses spatial domain and constellation domain to jointly transmit information bits, which increases the achievable rate of the system. In order to extend the SC-SM scheme to multi-user scenario, a multi-user SC-SM (MU-SC-SM) scheme based on beamforming is proposed. The proposed MU-SC-SM scheme not only eliminates the inter-user interference (IUI) and enhances the received signal-to-noise ratio (SNR) of the served user, but also resolves the conflict between beamforming and spatial modulation. The achievable rate, the bit-error-rate (BER) performance and computational complexity of the proposed MU-SC-SM scheme are analyzed in detail. The impacts of the imperfect channel state information on the BER performance are also analyzed. Simulations are carried out to verify that the proposed MU-SC-SM scheme is superior to existing multi-user spatial modulation schemes in BER performance.
Keyword:
Modulation
Transmitting antennas
Transmitters
Array signal processing
Receiving antennas
Slot antennas
Interference
Beamforming
multi-user
inter-user interference (IUI)
spatial modulation
期刊
IF:
7.1
论文数:
1.8W
被引数:
6.6W
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