10 papers
Flexible Rate-Splitting for Joint Unicast and Multi-Group Multicast Transmission in RIS-Assisted mmWave Networks
Hui Chen, Hongcheng Zhuang, Ahmed Badawy +1
Joint unicast and multi-group multicast transmission with RIS and RSMA is a promising enabler for 6G services. However, existing RSMA schemes for such scenarios split only unicast…
Cyclic Delay-Doppler Shift: A Simple Transmit Diversity Technique for Ultra-Reliable Communications in Doubly Selective Channels
Haoran Yin, Yu Zhou, Yanqun Tang +7
Affine frequency division multiplexing (AFDM) and orthogonal time frequency space (OTFS) are two promising advanced waveforms proposed for reliable communications in high-mobility…
Integrated Channel Sounding and Communication: Requirements, Architecture, Challenges, and Key Technologies
Nanhao Zhou, Chao Zou, Yu Zhou +7
Channel models are essential for the design, evaluation, and optimization of wireless communication systems. The emerging space-air-ground-sea integrated network (SAGSIN), characte…
Flag-Preamble-Based Delay-Doppler Channel Estimation for Next-Evolution Waveforms
Yuan Liu, Yilin Qi, Caiqin Li +3
Accurate delay-Doppler channel estimation is critical for next-evolution waveforms (NEWs) to enable reliable signal detection. This paper proposes a robust channel estimation algor…
A Unified Multicarrier Waveform Framework for Next-generation Wireless Networks: Principles, Performance, and Challenges
Xingyao Zhang, Haoran Yin, Yanqun Tang +7
Next-generation wireless networks require enhanced flexibility, efficiency, and reliability in physical layer waveform design to address the challenges posed by heterogeneous chann…
Ambiguity Function Analysis of AFDM Under Pulse-Shaped Random ISAC Signaling
Yuanhan Ni, Fan Liu, Haoran Yin +2
This paper investigates the ambiguity function (AF) of the emerging affine frequency division multiplexing (AFDM) waveform for Integrated Sensing and Communication (ISAC) signaling…
ISAC with Affine Frequency Division Multiplexing: An FMCW-Based Signal Processing Perspective
Jiajun Zhu, Yanqun Tang, Cong Yi +5
This paper investigates the sensing potential of affine frequency division multiplexing (AFDM) in high-mobility integrated sensing and communication (ISAC) from the perspective of…
From OFDM to AFDM: Enabling Adaptive Integrated Sensing and Communication in High-Mobility Scenarios
Haoran Yin, Yanqun Tang, Jun Xiong +7
Integrated sensing and communication (ISAC) is a key feature of next-generation wireless networks, enabling a wide range of emerging applications such as vehicle-to-everything (V2X…
Ambiguity Function Analysis of AFDM Signals for Integrated Sensing and Communications
Haoran Yin, Yanqun Tang, Yuanhan Ni +7
Affine frequency division multiplexing (AFDM) is a promising chirp-based waveform with high flexibility and resilience, making it well-suited for next-generation wireless networks,…
Joint Sparse Graph for Enhanced MIMO-AFDM Receiver Design
Qu Luo, Jing Zhu, Zilong Liu +4
Affine frequency division multiplexing (AFDM) is a promising chirp-assisted multicarrier waveform for future high-mobility communications. This paper is devoted to enhanced receive…