8 papers
OAMP-Aided Joint Channel Estimation and Data Detection for ODDM Systems
Kehan Huang, Min Qiu, Akram Shafie +1
In this work, to address the challenge of joint channel estimation and data detection (JED) for orthogonal delay-Doppler (DD) division multiplexing (ODDM) in doubly selective chann…
Delay-Doppler Domain Signal Processing Aided OFDM (DD-a-OFDM) for 6G and Beyond
Yiyan Ma, Bo Ai, Jinhong Yuan +10
High-mobility scenarios will be a critical part of 6G systems. Since the widely deployed orthogonal frequency division multiplexing (OFDM) waveform suffers from subcarrier orthogon…
A Novel One-tap Equalizer for Zero-Padded AFDM System over Doubly Selective Channels
Chenyang Zhang, Akram Shafie, Cheng Shen +2
Recently, affine frequency division multiplexing (AFDM) has gained traction as a robust solution for doubly selective channels. In this paper, we present a novel low-complexity one…
A Novel ISAC Waveform Based on Orthogonal Delay-Doppler Division Multiplexing with FMCW
Kehan Huang, Akram Shafie, Min Qiu +2
In this work, we propose the orthogonal delay-Doppler (DD) division multiplexing (ODDM) modulation with frequency modulated continuous wave (FMCW) (ODDM-FMCW) waveform to enable in…
Spectrum and Orthogonality of Orthogonal Delay-Doppler Division Multiplexing Modulation Waveforms
Akram Shafie, Jun Tong, Jinhong Yuan +4
Orthogonal delay-Doppler (DD) division multiplexing (ODDM) modulation has recently emerged as a promising paradigm for ensuring reliable communications in doubly-selective channels…
On the Time-Frequency Localization Characteristics of the Delay-Doppler Plane Orthogonal Pulse
Akram Shafie, Jinhong Yuan, Nan Yang +1
In this work, we study the time-frequency (TF) localization characteristics of the prototype pulse of orthogonal delay-Doppler (DD) division multiplexing modulation, namely, the DD…