6 papers · 1 filter
Receiver Design for Continuous-Time AFDM based on Pre-Filter De-Chirp
Qingyu Li, Shuangyang Li, Guanghui Liu +2
Affine frequency division multiplexing (AFDM) is a promising waveform for future high-mobility communications due to its Doppler robustness and diversity gain. However, existing co…
UL-Assisted Parametric CSI Feedback and Prediction for FDD Systems
Hao Chang, Mingcheng Nie, Shuangyang Li +4
In frequency-division duplex (FDD) systems, the uplink (UL) and downlink (DL) channels are not fully reciprocal. Therefore, DL channel state information (CSI) estimated by each use…
Probabilistic Symbol-Level Precoding based Affine Frequency Division Multiplexing Transmission
Shuntian Tang, Xinyi Wang, Shuangyang Li +3
Affine frequency division multiplexing (AFDM) has recently gained significant attention due to its robustness against time-frequency doubly selective channel fading. However, the h…
AFDM-FTN: A Spectrally Efficient Waveform for High-Mobility Communications
Xianle Dai, Qu Luo, Jianguo Li +4
This paper proposes an affine frequency division multiplexing (AFDM)-aided faster-than-Nyquist (FTN) waveform, termed AFDM-FTN, to enhance spectral efficiency (SE) in high-mobility…
Pushing the Limits: Unlocking the Potential of Faster-than-Nyquist Signaling
Zichao Zhang, Melda Yuksel, Shuangyang Li +2
Faster-than-Nyquist (FTN) signaling is gaining attention as a smart way to pack more data into limited spectrum by intentionally breaking the traditional symbol-spacing rules. This…
Rethinking Next-Generation Signal Waveform: Integration of Orthogonality and Non-Orthogonality
Tongyang Xu, Shuangyang Li, Zhongxiang Wei +2
As 6G communications advance, the demand for new services and capabilities, as defined by the international telecommunication union (ITU), is increasing. A crucial aspect of 6G adv…