no code implementations • 2 Jan 2025 • Xi Yu, Tiejun Lv, Weicai Li, Wei Ni, Dusit Niyato, Ekram Hossain
The key idea is that we interpret the outputs of the intermediate feature extraction blocks of the encoder as the nodes of a graph to capture the correlations of the intermediate features.
no code implementations • 21 May 2024 • Weicai Li, Tiejun Lv, Wei Ni, Jingbo Zhao, Ekram Hossain, H. Vincent Poor
With this knowledge, the impact of communication errors can be alleviated, allowing the convergence upper bound to decrease throughout aggregations.
no code implementations • 24 Apr 2024 • Xin Jin, Tiejun Lv, Wei Ni, Zhipeng Lin, Qiuming Zhu, Ekram Hossain, H. Vincent Poor
Dual-function-radar-communication (DFRC) is a promising candidate technology for next-generation networks.
no code implementations • 26 Feb 2024 • Yashuai Cao, Hetong Wang, Tiejun Lv, Wei Ni
Intelligent reflecting surface (IRS) is a potential candidate for massive multiple-input multiple-output (MIMO) 2. 0 technology due to its low cost, ease of deployment, energy efficiency and extended coverage.
no code implementations • 13 Feb 2023 • Weicai Li, Tiejun Lv, Yashuai Cao, Wei Ni, Mugen Peng
Wireless federated learning (WFL) undergoes a communication bottleneck in uplink, limiting the number of users that can upload their local models in each global aggregation round.
no code implementations • 10 Feb 2023 • Yingping Cui, Tiejun Lv, Wei Ni, Abbas Jamalipour
This paper puts forth a new, reconfigurable intelligent surface (RIS)-assisted, uplink, user-centric cell-free (UCCF) system managed with the assistance of a digital twin (DT).
no code implementations • 12 Oct 2022 • Yuanyuan Ma, Tiejun Lv, Gaofeng Pan, Yunfei Chen, Mohamed-Slim Alouini
Considering the randomness of R, D, and Eves, and employing a stochastic geometry framework, the secrecy outage performance of the cooperative uplink transmission in the considered SATN is investigated and a closed-form analytical expression for the end-to-end secrecy outage probability is derived.
no code implementations • 24 Jun 2022 • Shaoyang Wang, Chau Yuen, Wei Ni, Guan Yong Liang, Tiejun Lv
Then, the joint VNF P&R problem is decoupled into two iterative subtasks: placement subtask and routing subtask.
no code implementations • 11 Jun 2022 • Yuanyuan Ma, Tiejun Lv, TingTing Li, Gaofeng Pan, Yunfei Chen, Mohamed-Slim Alouini
In this paper, we investigate the effect of the strong time-varying transmission distance on the performance of the low-earth orbit (LEO) satellite-terrestrial transmission (STT) system.
no code implementations • 29 Mar 2021 • Shaoyang Wang, Tiejun Lv, Wei Ni, Norman C. Beaulieu, Y. Jay Guo
This paper presents a novel and effective deep reinforcement learning (DRL)-based approach to addressing joint resource management (JRM) in a practical multi-carrier non-orthogonal multiple access (MC-NOMA) system, where hardware sensitivity and imperfect successive interference cancellation (SIC) are considered.
no code implementations • 10 Sep 2020 • Zhipeng Lin, Tiejun Lv, Wei Ni, J. Andrew Zhang, Ren Ping Liu
Channel estimation is challenging for hybrid millimeter wave (mmWave) large-scale antenna arrays which are promising in 5G/B5G applications.
Signal Processing
no code implementations • 21 Jul 2020 • Xuewei Zhang, Tiejun Lv, Yuan Ren, Wei Ni, Norman C. Beaulieu
Aiming to minimize service delay, we propose a new random caching scheme in device-to-device (D2D)-assisted heterogeneous network.
no code implementations • 21 Jul 2020 • Yashuai Cao, Tiejun Lv, Zhipeng Lin, Pingmu Huang, Fuhong Lin
By converting it into a regression task, a novel DoA estimation framework based on complex-valued deep learning (CVDL) is proposed for the near-field region in short-range MIMO communication systems.
Signal Processing
no code implementations • 20 Jul 2020 • Zhipeng Lin, Tiejun Lv, Wei Ni, J. Andrew Zhang, Ren Ping Liu
As a result, only a small number of RF chains are required to preserve the DoF of the UCyA.
no code implementations • 20 Dec 2019 • Yashuai Cao, Tiejun Lv, Zhipeng Lin, Wei Ni
Millimeter-wave (mmWave) communications provide access to spectra with bandwidths and in abundance.
no code implementations • 6 Oct 2019 • Yashuai Cao, Tiejun Lv, Wei Ni
Intelligent reflecting surface (IRS) is envisioned as a promising solution for controlling radio propagation environments in future wireless systems.