225 citations · 236 across the 35 of their papers we have counts for
31 papers · 1 filter
Secure Semantic Communications: From Perspective of Physical Layer Security
Yongkang Li, Zheng Shi, Han Hu +3
Semantic communications have been envisioned as a potential technique that goes beyond Shannon paradigm. Unlike modern communications that provide bit-level security, the eaves-dro…
HARQ-IR Aided Short Packet Communications: BLER Analysis and Throughput Maximization
Fuchao He, Zheng Shi, Guanghua Yang +3
This paper introduces hybrid automatic repeat request with incremental redundancy (HARQ-IR) to boost the reliability of short packet communications. The finite blocklength informat…
Spectral-Efficiency and Energy-Efficiency of Variable-Length XP-HARQ
Jiahui Feng, Zheng Shi, Yaru Fu +3
A variable-length cross-packet hybrid automatic repeat request (VL-XP-HARQ) is proposed to boost the spectral efficiency (SE) and the energy efficiency (EE) of communications. The…
Deep Reinforcement Learning Empowered Rate Selection of XP-HARQ
Da Wu, Jiahui Feng, Zheng Shi +3
The complex transmission mechanism of cross-packet hybrid automatic repeat request (XP-HARQ) hinders its optimal system design. To overcome this difficulty, this letter attempts to…
Graph Convolutional Network Enabled Power-Constrained HARQ Strategy for URLLC
Yi Chen, Zheng Shi, Hong Wang +4
In this paper, a power-constrained hybrid automatic repeat request (HARQ) transmission strategy is developed to support ultra-reliable low-latency communications (URLLC). In partic…
Secure HARQ-IR-Aided Terahertz Communications
Yongkang Li, Ziyang Song, Zheng Shi +4
Terahertz (THz) communication is one of the most promising candidates to accommodate high-speed mobile data services. This paper proposes a secure hybrid automatic repeat request w…
Performance Analysis and Optimal Design of HARQ-IR-Aided Terahertz Communications
Ziyang Song, Zheng Shi, Jiaji Su +4
Terahertz (THz) communications are envisioned to be a promising technology for 6G thanks to its broad bandwidth. However, the large path loss, antenna misalignment, and atmospheric…
Optimal Power Allocation for HARQ Schemes over Time-Correlated Nakagami-m Fading Channels
Zheng Shi, Shaodan Ma, Fen Hou +2
This paper investigates the problem of power allocation for hybrid automatic repeat request (HARQ) schemes over time-correlated Nakagami-m fading channels under outage constraint.…
Analysis of HARQ-IR over Time-Correlated Rayleigh Fading Channels
Zheng Shi, Haichuan Ding, Shaodan Ma +1
In this paper, performance of hybrid automatic repeat request with incremental redundancy (HARQ-IR) over Rayleigh fading channels is investigated. Different from prior analysis, ti…
Outage Performance Analysis of Type-I HARQ Aided V2V Communications
Huan Zhang, Zhengtao Liao, Zheng Shi +3
Vehicle-to-vehicle (V2V) communications under dense urban environments usually experience severe keyhole fading effect, especially for multi-input multi-output (MIMO) channels, whi…
Performance Analysis of MIMO-NOMA Systems with Randomly Deployed Users
Zheng Shi, Guanghua Yang, Yaru Fu +2
This paper investigates the performance of Multiple-input multiple-output non-orthogonal multiple access (MIMO-NOMA) systems with randomly deployed users, where the randomly deploy…
Outage Probability Analysis of HARQ-Aided Terahertz Communications
Ziyang Song, Zheng Shi, Qingping Dou +3
Although terahertz (THz) communications can provide mobile broadband services, it usually has a large path loss and is vulnerable to antenna misalignment. This significantly degrad…
Energy-Efficient Optimization for HARQ Schemes over Time-Correlated Fading Channels
Zheng Shi, Shaodan Ma, Guanghua Yang +1
Energy efficiency of three common hybrid automatic repeat request (HARQ) schemes including Type I HARQ, HARQ with chase combining (HARQ-CC) and HARQ with incremental redundancy (HA…
Inverse Moment Matching Based Analysis of Cooperative HARQ-IR over Time-Correlated Nakagami Fading Channels
Zheng Shi, Haichuan Ding, Shaodan Ma +2
This paper analyzes the performance of cooperative hybrid automatic repeat request with incremental redundancy (HARQ-IR) and proposes a new approach of outage probability approxima…
Outage Performance Analysis of Full-Correlated Rayleigh MIMO Channels
Huan Zhang, Guanghua Yang, Zheng Shi +2
The outage performance of multiple-input multiple-output (MIMO) technique has received intensive attention to meet the stringent requirement of reliable communications for 5G appli…
On the Performance of Variable-Rate HARQ-IR over Beckmann Fading Channels
Zheng Shi, Huan Zhang, Shenke Zhong +3
This paper thoroughly investigates the performance of variable-rate hybrid automatic repeat request with incremental redundancy (HARQ-IR) over Beckmann fading channels, where Beckm…
A General Analytical Approach for Outage Analysis of HARQ-IR over Correlated Fading Channels
Zheng Shi, Shaodan Ma, Guanghua Yang +2
This paper proposes a general analytical approach to derive the outage probability of hybrid automatic repeat request with incremental redundancy (HARQ-IR) over correlated fading c…
Outage Performance of Cross-Packet HARQ
Jiahui Feng, Zheng Shi, Guanghua Yang +3
As opposed to hybrid automatic repeat request with incremental redundancy (HARQ-IR) that all the resources are occupied to resend the redundant information, cross-packet HARQ (XP-H…
Outage Analysis on Type I HARQ over Time-Correlated Rayleigh Fading Channels
Zheng Shi, Shaodan Ma, Kam-Weng Tam
This paper analyzes Type I hybrid automatic repeat request (HARQ) over time-correlated Rayleigh fading channels. Due to the presence of channel time correlation, the analysis is mo…
Performance Analysis of MIMO-HARQ Assisted V2V Communications With Keyhole Effect
Huan Zhang, Zhengtao Liao, Zheng Shi +3
Vehicle-to-vehicle (V2V) communications under dense urban environments usually experience severe keyhole fading effect especially for multi-input multi-output (MIMO) channels, whic…
Outage Performance Analysis of HARQ-Aided Multi-RIS Systems
Qi Cao, Huan Zhang, Zheng Shi +4
Reconfigurable intelligent surface (RIS) has recently attracted a spurt of interest due to its innate advantages over Massive MIMO on power consumption. In this paper, we study the…
Outage Performance and Optimal Design of MIMO-NOMA Enhanced Small Cell Networks With Imperfect Channel-State Information
Zheng Shi, Hong Wang, Yaru Fu +3
This paper focuses on boosting the performance of small cell networks (SCNs) by integrating multiple-input multiple-output (MIMO) and non-orthogonal multiple access (NOMA) in consi…
Achievable Diversity Order of HARQ-Aided Downlink NOMA Systems
Zheng Shi, Chenmeng Zhang, Yaru Fu +3
The combination between non-orthogonal multiple access (NOMA) and hybrid automatic repeat request (HARQ) is capable of realizing ultra-reliability, high throughput and many concurr…
Zero-Forcing Based Downlink Virtual MIMO-NOMA Communications in IoT Networks
Zheng Shi, Hong Wang, Yaru Fu +4
To support massive connectivity and boost spectral efficiency for internet of things (IoT), a downlink scheme combining virtual multiple-input multiple-output (MIMO) and nonorthogo…