1.8k citations · 2.7k across the 42 of their papers we have counts for
42 papers
A New Design of CR-NOMA and Its Application to AoI Reduction
Zhiguo Ding, Octavia A. Dobre, Pingzhi Fan +1
The aim of this letter is to develop a new design of cognitive radio inspired non-orthogonal multiple access (CR-NOMA), which ensures that multiple new users can be supported witho…
Radar Sensing via OTFS Signaling: A Delay Doppler Signal Processing Perspective
Kecheng Zhang, Weijie Yuan, Shuangyang Li +4
The recently proposed orthogonal time frequency space (OTFS) modulation multiplexes data symbols in the delay-Doppler (DD) domain. Since the range and velocity, which can be derive…
New Delay Doppler Communication Paradigm in 6G era: A Survey of Orthogonal Time Frequency Space (OTFS)
Weijie Yuan, Shuangyang Li, Zhiqiang Wei +4
In the 6G era, space-air-Ground integrated networks (SAGIN) are anticipated to deliver global coverage, necessitating support for a diverse array of emerging applications in high-m…
Pricing for Reconfigurable Intelligent Surface Aided Wireless Networks: Models and Principles
Yulan Gao, Yue Xiao, Xianfu Lei +5
Owing to the recent advancements of meta-materials and meta-surfaces, the concept of reconfigurable intelligent surface (RIS) has been embraced to meet the spectral- and energy-eff…
New Spectrally Constrained Sequence Sets with Optimal {Periodic} Cross-Correlation
Zhifan Ye, Zhengchun Zhou, Zilong Liu +2
Spectrally constrained sequences (SCSs) play an important role in modern communication and radar systems operating over non-contiguous spectrum. Despite numerous research attempts…
Improved Sparse Vector Code Based on Optimized Spreading Matrix for Short-Packet URLLC in mMTC
Linjie Yang, Pingzhi Fan
Recently, the sparse vector code (SVC) is emerging as a promising solution for short-packet transmission in massive machine type communication (mMTC) as well as ultra-reliable and…
Joint Channel Estimation and Data Detection for Hybrid RIS aided Millimeter Wave OTFS Systems
Muye Li, Shun Zhang, Yao Ge +2
For high mobility communication scenario, the recently emerged orthogonal time frequency space (OTFS) modulation introduces a new delay-Doppler domain signal space, and can provide…
Data-aided Active User Detection with False Alarm Correction in Grant-Free Transmission
Linjie Yang, Pingzhi Fan, Des McLernon +1
In most existing grant-free (GF) studies, the two key tasks, namely active user detection (AUD) and payload data decoding, are handled separately. In this paper, a two-step dataaid…
Grant-Free Transmission by LDPC Matrix Mapping and Integrated Cover-MPA Detector
Linjie Yang, Pingzhi Fan, Li Li +2
In this paper, a novel transceiver architecture is proposed to simultaneously achieve efficient random access and reliable data transmission in massive IoT networks. At the transmi…
Off-Network Communications For Future Railway Mobile Communication Systems: Challenges and Opportunities
Jiewen Hu, Gang Liu, Yongbo Li +5
GSM-R is predicted to be obsoleted by 2030, and a suitable successor is needed. Defined by the International Union of Railways (UIC), the Future Railway Mobile Communication System…
Min-Max Latency Optimization Based on Sensed Position State Information in Internet of Vehicles
Pengzun Gao, Long Zhao, Kan Zheng +1
The dual-function radar communication (DFRC) is an essential technology in Internet of Vehicles (IoV). Consider that the road-side unit (RSU) employs the DFRC signals to sense the…
Low Ambiguity Zone: Theoretical Bounds and Doppler-Resilient Sequence Design in Integrated Sensing and Communication Systems
Zhifan Ye, Zhengchun Zhou, Pingzhi Fan +3
In radar sensing and communications, designing Doppler resilient sequences (DRSs) with low ambiguity function for delay over the entire signal duration and Doppler shift over the e…
Asymptotically Optimal Golay-ZCZ Sequence Sets with Flexible Length
Zhi Gu, Zhengchun Zhou, Avik Ranjan Adhikary +2
Zero correlation zone (ZCZ) sequences and Golay complementary sequences are two kinds of sequences with different preferable correlation properties. Golay-ZCZ sequences are special…
New Constructions of Golay Complementary Pair/Array with Large Zero Correlation Zone
Zhi Gu, Zhengchun Zhou, Avik Ranjan Adhikary +2
Zero correlation zone (ZCZ) sequences and Golay sequences are two kinds of sequences with different preferable correlation properties. It was shown by Gong \textit{et al.} and Chen…
On the Reliability and Concurrent Unicast Transmission Node Control of 5G NR-V2X Networks
Ke Li, Li Li, Wenpeng Wu +2
In vehicle-to-everything (V2X) communications, reliability is one of the most important performance metrics in safety-critical applications such as advanced driving, remote driving…
A Layered Grouping Random Access Scheme Based on Dynamic Preamble Selection for Massive Machine Type Communications
Gaofeng Cheng, Huan Chen, Pingzhi Fan +2
Massive machine type communication (mMTC) has been identified as an important use case in Beyond 5G networks and future massive Internet of Things (IoT). However, for the massive m…
Complementary Waveforms for Range-Doppler Sidelobe Suppression Based on a Null Space Approach
Jiahuan Wang, Pingzhi Fan, Des McLernon +1
While Doppler resilient complementary waveforms have previously been considered to suppress range sidelobes within a Doppler interval of interest in radar systems, their capability…
Asymptotically Optimal and Near-optimal Aperiodic Quasi-Complementary Sequence Sets Based on Florentine Rectangles
Avik Ranjan Adhikary, Yanghe Feng, Zhengchun Zhou +1
Quasi-complementary sequence sets (QCSSs) can be seen as a generalized version of complete complementary codes (CCCs), which enables multicarrier communication systems to support m…
Massively Distributed Antenna Systems with Non-Ideal Optical Fiber Front-hauls: A Promising Technology for 6G Wireless Communication Systems
Lisu Yu, Jingxian Wu, Andong Zhou +2
Employing massively distributed antennas brings radio access points (RAPs) closer to users, thus enables aggressive spectrum reuse that can bridge gaps between the scarce spectrum…
Max-Min Optimal Beamforming for Cell-Free Massive MIMO
Andong Zhou, Jingxian Wu, Erik G. Larsson +1
This letter develops an optimum beamforming method for downlink transmissions in cell-free massive multiple-input multiple-output (MIMO) systems, which employ a massive number of d…
Quasi-Orthogonal Z-Complementary Pairs and Their Applications in Fully Polarimetric Radar Systems
Jiahuan Wang, Pingzhi Fan, Zhengchun Zhou +1
One objective of this paper is to propose a novel class of sequence pairs, called "Quasi-orthogonal Z-complementary pairs (QOZCPs)", each depicting Z-complementary property for the…
New Construction of Optimal Type-II Binary Z-Complementary Pairs
Zhi Gu, Zhengchun Zhou, Qi Wang +1
A pair of sequences is called a Z-complementary pair (ZCP) if it has zero aperiodic autocorrelation sums at each of the non-zero time-shifts within {a} certain region, called the z…
A New Path Division Multiple Access for the Massive MIMO-OTFS Networks
Muye Li, Shun Zhang, Feifei Gao +2
This paper focuses on a new path division multiple access (PDMA) for both uplink (UL) and downlink (DL) massive multiple-input multiple-output network over a high mobility scenario…
Low-PMEPR Preamble Sequence Design for Dynamic Spectrum Allocation in OFDMA Systems
Yajing Zhou, Zhengchun Zhou, Zilong Liu +2
Orthogonal Frequency Division Multiple Access (OFDMA) with Dynamic spectrum allocation (DSA) is able to provide a wide range of data rate requirements. This paper is focused on the…