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October 13, 2025Open Access

BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels

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Authors

LLLimin LiuZLZhe LiQPQihao Peng

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Overview

This approach demonstrates improved channel estimation and reduced bit error rate in AFDM systems, indicating effective interference mitigation.

Key Points

  • The proposed scheme significantly reduces bit error rate through effective channel estimation.
  • The closed-form expression for channel estimation error under MMSE gives theoretical insights.
  • Numerical results confirm that the scheme successfully mitigates inter-Doppler interference.
  • The performance analysis aligns well with Monte-Carlo simulations, validating the GCE-BEM method.

Cite This Study

Liu et al. (2025) studied this question.

synapsesocial.com/papers/68ece2abd1bb2827d12974e4https://doi.org/10.48550/arxiv.2504.18901
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Matched Filtering-Based Channel Estimation for AFDM Systems in Doubly Selective Channels2025
  2. 2GI-Free Pilot-Aided Channel Estimation for Affine Frequency Division Multiplexing Systems2024 · 3 citations
  3. 3Joint Channel, Data and Radar Parameter Estimation for AFDM Systems in Doubly-Dispersive Channels2024
  4. 4Time-Varying Channel Estimation Based on Distributed Compressed Sensing for OFDM Systems2024 · 8 citations
  5. 5Channel Estimation for AFDM With Superimposed Pilots2024