Efficient signal detector design for OTFS with index modulation

Yezeng Wu ¹Lixia Xiao ¹Yiming Xie ¹Guanghua Liu ¹Tao Jiang¹

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作者信息

1. Research Center of 6G Mobile Communications,School of Cyber Science and Engineering,Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan,430074,China
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Abstract

In this paper,efficient signal detectors are designed for Orthogonal Time Frequency Space(OTFS)modulation with Index Modulation(IM)systems.Firstly,the Minimum Mean Squared Error(MMSE)based linear equalizer and its corresponding soft-aided decision are studied for OTFS-IM.To further improve the performance,a Vector-by-Vector-aided Message Passing(W-MP)detector and its associated soft-decision are proposed,where each IM symbol is considered an entire vector utilized for message calculation and passing.Simulation results are shown that the OTFS-IM system relying on the proposed detectors is capable of providing considerable Bit Error Rate(BER)performance gains over the OTFS and Orthogonal Frequency Division Multiplex(OFDM)with IM systems.

Key words

Orthogonal Time Frequency Space(OTFS)/Index Modulation(IM)/Message Passing(MP)/Soft-aided decision

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出版年

2024

数字通信与网络(英文)

ISSN：

段落导航