528 citations · 2.5k across the 61 of their papers we have counts for
10 papers · 1 filter
Intelligent Power Control for Spectrum Sharing in Cognitive Radios: A Deep Reinforcement Learning Approach
Xingjian Li, Jun Fang, Wen Cheng +3
We consider the problem of spectrum sharing in a cognitive radio system consisting of a primary user and a secondary user. The primary user and the secondary user work in a non-coo…
Phased Array-Based Sub-Nyquist Sampling for Joint Wideband Spectrum Sensing and Direction-of-Arrival Estimation
Feiyu Wang, Jun Fang, Huiping Duan +1
In this paper, we study the problem of joint wideband spectrum sensing and direction-of-arrival (DoA) estimation in a sub-Nyquist sampling framework. Specifically, considering a sc…
Channel Estimation for TDD/FDD Massive MIMO Systems with Channel Covariance Computing
Hongxiang Xie, Feifei Gao, Shi Jin +2
In this paper, we propose a new channel estimation scheme for TDD/FDD massive MIMO systems by reconstructing uplink/downlink channel covariance matrices (CCMs) with the aid of arra…
Fast Low-Rank Bayesian Matrix Completion with Hierarchical Gaussian Prior Models
Linxiao Yang, Jun Fang, Huiping Duan +2
The problem of low rank matrix completion is considered in this paper. To exploit the underlying low-rank structure of the data matrix, we propose a hierarchical Gaussian prior mod…
Bayesian Compressive Sensing Using Normal Product Priors
Zhou Zhou, Kaihui Liu, Jun Fang
In this paper, we introduce a new sparsity-promoting prior, namely, the "normal product" prior, and develop an efficient algorithm for sparse signal recovery under the Bayesian fra…
Physical Layer Service Integration in 5G: Potentials and Challenges
Weidong Mei, Zhi Chen, Jun Fang +1
High transmission rate and secure communication have been identified as the key targets that need to be effectively addressed by fifth generation (5G) wireless systems. In this con…