Search Results for author: Xianfu Lei

Found 5 papers, 0 papers with code

Pricing for Reconfigurable Intelligent Surface Aided Wireless Networks: Models and Principles

no code implementations1 Nov 2022 Yulan Gao, Yue Xiao, Xianfu Lei, Qiaonan Zhu, Dusit Niyato, Kai-Kit Wong, Pingzhi Fan, Rose Qingyang Hu

Specifically, we commence with a comprehensive introduction of RIS pricing with its potential applications in RIS networks, meanwhile the fundamentals of pricing models are summarized in order to benefit both RIS holders and WSPs.

Two-Timescale Transmission Design for Wireless Communication Systems Aided by Active RIS

no code implementations25 Oct 2022 Zhangjie Peng, Tianshu Li, Cunhua Pan, Xianfu Lei, Shi Jin

This paper considers an active reconfigurable intelligent surface (RIS)-aided communication system, where an M-antenna base station (BS) transmits data symbols to a single-antenna user via an N-element active RIS.

Cognitive Semantic Communication Systems Driven by Knowledge Graph

no code implementations24 Feb 2022 Fuhui Zhou, Yihao Li, Xinyuan Zhang, Qihui Wu, Xianfu Lei, Rose Qingyang Hu

Semantic communication is envisioned as a promising technique to break through the Shannon limit.

Data Compression

A 3D Non-stationary MmWave Channel Model for Vacuum Tube Ultra-High-Speed Train Channels

no code implementations17 Jan 2021 YingJie Xu, Kai Yu, Li Li, Xianfu Lei, Li Hao, Cheng-Xiang Wang

As a potential development direction of future transportation, the vacuum tube ultra-high-speed train (UHST) wireless communication systems have newly different channel characteristics from existing high-speed train (HST) scenarios.

Towards Optimally Efficient Search with Deep Learning for Large-Scale MIMO Systems

no code implementations7 Jan 2021 Le He, Ke He, Lisheng Fan, Xianfu Lei, Arumugam Nallanathan, George K. Karagiannidis

This indicates that the proposed algorithm reaches almost the optimal efficiency in practical scenarios, and thereby it is applicable for large-scale systems.

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