We propose a low-complexity receiver structure for the recently introduced Affine Filter Bank Modulation (AFBM) scheme, which is a novel waveform designed for integrated sensing and communications (ISAC) systems operating in doubly-dispersive (DD) channels. The proposed receiver structure is based on the Gaussian Belief Propagation (GaBP) framework, making use of only element-wise scalar operations to perform detection of the transmitted symbols. Simulation results demonstrate that AFBM in conjunction with GaBP outperforms affine frequency division multiplexing (AFDM) in terms of bit error rates (BERs) in DD channels, while achieving very low out-of-band emissions (OOBE) in high-mobility scenarios.
@article{arxiv.2506.17010,
title = {Low-Complexity Receiver Design for Affine Filter Bank Modulation},
author = {Kuranage Roche Rayan Ranasinghe and Bruno S. Chang and Giuseppe Thadeu Freitas de Abreu},
journal= {arXiv preprint arXiv:2506.17010},
year = {2025}
}
Comments
Submitted to an IEEE conference. arXiv admin note: substantial text overlap with arXiv:2505.03589