5 papers
Joint System Latency and Data Freshness Optimization for Cache-enabled Mobile Crowdsensing Networks
Kexin Shi, Yaru Fu, Yongna Guo +2
Mobile crowdsensing (MCS) networks enable large-scale data collection by leveraging the ubiquity of mobile devices. However, frequent sensing and data transmission can lead to sign…
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…
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…
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…
A New Look at AI-Driven NOMA-F-RANs: Features Extraction, Cooperative Caching, and Cache-Aided Computing
Zhong Yang, Yaru Fu, Yuanwei Liu +2
Non-orthogonal multiple access (NOMA) enabled fog radio access networks (NOMA-F-RANs) have been taken as a promising enabler to release network congestion, reduce delivery latency,…