An Inter-Doppler Interference Constrained OC-DFE for OTFS in UWA Communications
Date
Authors
Yang, Yang
Ma, Lu
Seet, Boon-Chong
Supervisor
Item type
Journal Article
Degree name
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Orthogonal Time Frequency Space (OTFS) modulation presents a promising approach for underwater acoustic (UWA) communication. This study proposes an iterative decision feedback equalizer based on optimal combining (OC) for UWA-OTFS systems, addressing challenges posed by the fullmatrix channel characteristics in the delay-Doppler domain. The proposed detector maximizes the signal-to-interference-plusnoise ratio of the combined signal. Furthermore, by introducing inter-Doppler interference depth, the OC detector dynamically constrains the number of combining terms. Simulation results demonstrate that the proposed detector effectively balances bit error rate performance with computational complexity.Description
Keywords
0805 Distributed Computing, 0906 Electrical and Electronic Engineering, 1005 Communications Technologies, 4006 Communications engineering, 4009 Electronics, sensors and digital hardware, 4606 Distributed computing and systems software
Source
IEEE Wireless Communications Letters, ISSN: 2162-2337 (Print); 2162-2345 (Online), Institute of Electrical and Electronics Engineers (IEEE), 1-1. doi: 10.1109/lwc.2025.3624208
Publisher's version
Rights statement
© 2025 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.