preprintIEEE Transactions on CommunicationsJan 1, 2026GREEN OA

Multi-Carrier Modulation: An Evolution From Time-Frequency Domain to Delay-Doppler Domain

HLHai LinJYJinhong YuanWYWei YuJWJingxian WuLHLajos Hanzo

Osaka Metropolitan University · UNSW Sydney · +3 more institutions

Indexed inarxivcrossrefdatacite

Abstract

The recently proposed orthogonal delay-Doppler division multiplexing (ODDM) modulation, which is a delay-Doppler (DD) domain multi-carrier (DDMC) modulation scheme based on the DD domain orthogonal pulse (DDOP), is studied. We first revisit the linear time-varying (LTV) channel model for the wireless channel, and review the conventional multi-carrier (MC) modulation schemes and their design guidelines for both linear time-invariant (LTI) and LTV channels. We then focus on the representation of the LTV channel in an equivalent sampled DD (ESDD) domain, and propose an impulse-function-based transmission strategy for the ESDD channel. Next, we take an in-depth look into the DDOP and show that it achieves…

Citation impact

5
total citations
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98%
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Authors

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Topics & keywords

Topics
Keywords
  • Time domain
  • Computer science
  • Impulse response
  • Multiplexing
  • Orthogonality
  • Frequency domain
  • Modulation (music)
  • Electronic engineering
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