43 citations · 115 across the 19 of their papers we have counts for
19 papers
Power Allocation for Finite-Blocklength IR-HARQ
Wenyu Wang, Minhao Zhu, Kaiming Shen +2
This letter concerns the power allocation across the multiple transmission rounds under the Incremental Redundancy Hybrid Automatic Repeat reQuest (IR-HARQ) policy, in pursuit of a…
Over-the-Air Diagnosis of Defective Elements in Intelligent Reflecting Surface
Ziyi Zhao, Zhaorui Wang, Lin Zhou +4
Due to circuit failures, defective elements that cannot adaptively adjust the phase shifts of their impinging signals in a desired manner may exist on an intelligent reflecting sur…
Rethinking Grant-Free Protocol in mMTC
Minhao Zhu, Yifei Sun, Lizhao You +3
This paper revisits the identity detection problem under the current grant-free protocol in massive machine-type communications (mMTC) by asking the following question: for stable…
LMaaS: Exploring Pricing Strategy of Large Model as a Service for Communication
Panlong Wu, Qi Liu, Yanjie Dong +1
The next generation of communication is envisioned to be intelligent communication, that can replace traditional symbolic communication, where highly condensed semantic information…
Combating Multi-path Interference to Improve Chirp-based Underwater Acoustic Communication
Wenjun Xie, Enqi Zhang, Lizhao You +3
Linear chirp-based underwater acoustic communication has been widely used due to its reliability and long-range transmission capability. However, unlike the counterpart chirp techn…
Covariance-Based Activity Detection in Cooperative Multi-Cell Massive MIMO: Scaling Law and Efficient Algorithms
Ziyue Wang, Ya-Feng Liu, Zhaorui Wang +1
This paper focuses on the covariance-based activity detection problem in a multi-cell massive multiple-input multiple-output (MIMO) system. In this system, active devices transmit…
Reducing Channel Estimation and Feedback Overhead in IRS-Aided Downlink System: A Quantize-then-Estimate Approach
Rui Wang, Zhaorui Wang, Liang Liu +2
Channel state information (CSI) acquisition is essential for the base station (BS) to fully reap the beamforming gain in intelligent reflecting surface (IRS)-aided downlink communi…
Device Activity Detection in mMTC with Low-Resolution ADC: A New Protocol
Zhaorui Wang, Ya-Feng Liu, Ziyue Wang +3
This paper investigates the effect of low-resolution analog-to-digital converters (ADCs) on device activity detection in massive machine-type communications (mMTC). The low-resolut…
Quick and Reliable LoRa Physical-layer Data Aggregation through Multi-Packet Reception
Lizhao You, Zhirong Tang, Pengbo Wang +3
This paper presents a Long Range (LoRa) physical-layer data aggregation system (LoRaPDA) that aggregates data (e.g., sum, average, min, max) directly in the physical layer. In part…
Scaling Law Analysis for Covariance Based Activity Detection in Cooperative Multi-Cell Massive MIMO
Ziyue Wang, Ya-Feng Liu, Zhaorui Wang +1
This paper studies the covariance based activity detection problem in a multi-cell massive multiple-input multiple-output (MIMO) system, where the active devices transmit their sig…
Semantic Communication-Empowered Physical-layer Network Coding
Shuai Yang, Haoyuan Pan, Tse-Tin Chan +1
In a two-way relay channel (TWRC), physical-layer network coding (PNC) doubles the system throughput by turning superimposed signals transmitted simultaneously by different end nod…
Covariance-Based Joint Device Activity and Delay Detection in Asynchronous mMTC
Zhaorui Wang, Ya-Feng Liu, Liang Liu
In this letter, we study the joint device activity and delay detection problem in asynchronous massive machine-type communications (mMTC), where all active devices asynchronously t…
Massive MIMO Communication with Intelligent Reflecting Surface
Zhaorui Wang, Liang Liu, Shuowen Zhang +1
This paper studies the feasibility of deploying intelligent reflecting surfaces (IRSs) in massive MIMO (multiple-input multiple-output) systems to improve the performance of users…
PNC Enabled IIoT: A General Framework for Channel-Coded Asymmetric Physical-Layer Network Coding
Zhaorui Wang, Ling Liu, Shengli Zhang +3
This paper investigates the application of physical-layer network coding (PNC) to Industrial Internet-of-Things (IIoT) where a controller and a robot are out of each other's transm…
Intelligent Reflecting Surface Assisted Massive MIMO Communications
Zhaorui Wang, Liang Liu, Shuguang Cui
In a practical massive MIMO (multiple-input multiple-output) system, the number of antennas at a base station (BS) is constrained by the space and cost factors, which limits the th…
Channel Estimation for Intelligent Reflecting Surface Assisted Multiuser Communications: Framework, Algorithms, and Analysis
Zhaorui Wang, Liang Liu, Shuguang Cui
In intelligent reflecting surface (IRS) assisted communication systems, the acquisition of channel state information (CSI) is a crucial impediment for achieving the beamforming gai…
Channel Estimation for Intelligent Reflecting Surface Assisted Multiuser Communications
Zhaorui Wang, Liang Liu, Shuguang Cui
In the intelligent reflecting surface (IRS) assisted communication systems, the acquisition of channel state information (CSI) is a crucial impediment for achieving the passive bea…
Coherent Detection for Short-Packet Physical-Layer Network Coding with FSK Modulation
Zhaorui Wang, Soung Chang Liew
This paper investigates coherent detection for physical-layer network coding (PNC) with short packet transmissions in a two-way relay channel (TWRC). PNC turns superimposed EM wave…
Noncoherent Detection for Physical-Layer Network Coding
Zhaorui Wang, Soung Chang Liew, Lu Lu
This paper investigates noncoherent detection in a two-way relay channel operated with physical layer network coding (PNC), assuming FSK modulation and short-packet transmissions.…