6 papers
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…
A Novel HARQ-CC Assisted SCMA Scheme
Man Wang, Zheng Shi, Yunfei Li +3
This letter proposes a novel hybrid automatic repeat request with chase combining assisted sparse code multiple access (HARQ-CC-SCMA) scheme. Depending on whether the same superimp…
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…
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…