Title
Bit-wise Detection for OTFS Modulation via Message Passing Algorithm
Abstract
The orthogonal time frequency space (OTFS) modulation as a promising signal representation attracts growing attention for integrated sensing and communication. This paper devotes to signal detection for OTFS system. Notice the characteristics of high dimension and sparsity of OTFS channel, we propose a bit-wise message passing (MP) algorithm to support Soft-Input Soft-Output detection. We leverage the channel sparsity to simplify the factor graph, and approximate the discrete messages with continuous Gaussian distribution to facilitate message updating. Simulations in various cases validate the outperformance of the proposed algorithm contrast to existed symbol-wise MP and linear detectors.
Year
DOI
Venue
2022
10.1109/ICCCWorkshops55477.2022.9896692
2022 IEEE/CIC International Conference on Communications in China (ICCC Workshops)
Keywords
DocType
ISSN
OTFS,detection,message passing,Soft-Input Soft-Output,factor graph
Conference
2474-9133
ISBN
Citations 
PageRank 
978-1-6654-5978-5
0
0.34
References 
Authors
11
8
Name
Order
Citations
PageRank
Bowen Wang100.68
Nanxi Li200.34
Shan Yang300.68
Zheng Jiang400.34
Jianchi Zhu500.34
Xiaoming She601.35
Jianxiu Wang701.01
Peng Chen801.01