articleIEEE Communications Surveys & TutorialsFeb 17, 2025Closed access

A Unifying View of OTFS and Its Many Variants

QDQinwen DengYGYao GeZDZhi Ding

University of California, Davis · Nanyang Technological University

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Abstract

High mobility environment leads to severe Doppler effects and poses serious challenges to the conventional physical layer based on the widely popular orthogonal frequency division multiplexing (OFDM). The recent emergence of orthogonal time frequency space (OTFS) modulation, along with its many related variants, presents a promising solution to overcome such channel Doppler effects. This paper aims to clearly establish the relationships among the various manifestations of OTFS. Among these related modulations, we identify their connections, common features, and distinctions. Building on existing works, this work provides a general overview of various OTFS-related detection schemes and performance comparisons.…

Citation impact

42
total citations
FWCI
44.63
Percentile
100%
References
165
Citations per year

Authors

3

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Keywords
  • Epistemology
  • Computational biology
  • Biology
  • Philosophy
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