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April 15, 2024Open Access

Channel Estimation for AFDM With Superimposed Pilots

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Authors

ZKZheng KaiMWMiaowen WenTMTianqi Mao

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Overview

Simulation study demonstrates improved spectral efficiency and channel estimation in doubly selective fading channels, indicating enhanced multi-chirp waveform communication.

Key Points

  • Spectral efficiency and channel estimation accuracy increase when employing superimposed pilots within the discrete affine Fourier transform domain for AFDM systems.
  • Simulation of doubly selective fading channels shows improved data detection and estimation accuracy, as error rates decline with an increasing number of superimposed pilots.
  • May enable robust affine frequency division multiplexing networks, while an iterative channel estimator and signal detector effectively mitigates pilot-data interference.

Cite This Study

Kai et al. (2024) studied this question.

synapsesocial.com/papers/68e6f39db6db64358766dc8fhttps://doi.org/10.48550/arxiv.2404.10232
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Also Consider

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

  1. 1GI-Free Pilot-Aided Channel Estimation for Affine Frequency Division Multiplexing Systems2024 · 3 citations
  2. 2Matched Filtering-Based Channel Estimation for AFDM Systems in Doubly Selective Channels2025
  3. 3Joint Channel, Data and Radar Parameter Estimation for AFDM Systems in Doubly-Dispersive Channels2024
  4. 4Attention-Based AFDM Channel Estimation Network Using Diagonal Reconstruction2026
  5. 5A Secure Affine Frequency Division Multiplexing for Wireless Communication Systems2025