Uplink SCMA with STBC in fading channels

Li, Huan Ying, Liu, Zi Jing, Yu, Qi Yue, Xiang, Wei, and Adachi, Fumiyuki (2020) Uplink SCMA with STBC in fading channels. In: Proceedings of the IEEE Vehicular Technology Conference. 9128386. From: VTC2020-Spring: IEEE 91st Vehicular Technology Conference, 25-28 May 2020, Antwerp, Belgium.

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Sparse code multiple access (SCMA) is an attractive non-orthogonal multiple access scheme for wireless communications. Meanwhile, space-time block coding (STBC) can achieve high diversity gains in fading channels. This paper proposes an uplink SCMA-STBC with a space-time-based message-passing algorithm (ST-MPA). Moreover, precoding is employed in the proposed SCMA-STBC to reduce the complexity of the receiver. The BER lower bound is derived for the proposed system. Simulation results show that the system with precoding provides a better BER performance than the case without precoding.

Item ID: 67200
Item Type: Conference Item (Research - E1)
ISBN: 978-1-7281-5207-3
ISSN: 1550-2252
Keywords: fading channel, precoding, space-time block code (STBC), Sparse code multiple access (SCMA)
Copyright Information: © 2020 IEEE.
Funders: National Natural Science Foundation of China (NNSFC), Natural Science Foundation of Heilongjiang Province (NSFHP)
Projects and Grants: NNSFC 61671171, NSFHP YQ2019F009
Date Deposited: 28 Apr 2021 23:59
FoR Codes: 40 ENGINEERING > 4006 Communications engineering > 400607 Signal processing @ 50%
40 ENGINEERING > 4006 Communications engineering > 400608 Wireless communication systems and technologies (incl. microwave and millimetrewave) @ 50%
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