48 citations · 138 across the 20 of their papers we have counts for
13 papers · 1 filter
Energy-Efficient Cell-Free Network Assisted by Hybrid RISs
Wanting Lyu, Yue Xiu, Songjie Yang +2
In this letter, we investigate a cell-free network aided by hybrid reconfigurable intelligent surfaces (RISs), which consists of a mixture of passive and active elements that are c…
Channel Estimation for Reconfigurable Intelligent Surface-Assisted Cell-Free Communications
Songjie Yang, Chenfei Xie, Mingwei Wang +1
Recent research has focused on reconfigurable intelligent surface (RIS)-assisted cell-free systems with the goal of enhancing coverage and lowering the cost of cell-free networks.…
Bayesian Optimization-Based Beam Alignment for MmWave MIMO Communication Systems
Songjie Yang, Baojuan Liu, Zhiqin Hong +1
Due to the very narrow beam used in millimeter wave communication (mmWave), beam alignment (BA) is a critical issue. In this work, we investigate the issue of mmWave BA and present…
Fast Compressive Channel Estimation for MmWave MIMO Hybrid Beamforming Systems
Songjie Yang, Chenfei Xie, Dongli Wang +1
Given the high degree of computational complexity of the channel estimation technique based on the conventional one-dimensional (1-D) compressive sensing (CS) framework employed in…
Low-complexity Sparse Array Synthesis Based on Off-grid Compressive Sensing
Songjie Yang, Baojuan Liu, Zhiqin Hong +1
A novel sparse array synthesis method for non-uniform planar arrays is proposed, which belongs to compressive sensing (CS)-based systhesis. Particularly, we propose an off-grid ref…
Age Minimization in Outdoor and Indoor Communications with Relay-aided Dual RIS
Wanting Lyu, Yue Xiu, Yang Zhao +2
In this paper, we investigate an outdoor and indoor wireless communication network with the assistance of a novel relay-aided double-sided reconfigurable intelligent surface (RIS).…
Weighted Sum Age of Information Minimization in Wireless Networks with Aerial IRS
Wanting Lyu, Yue Xiu, Songjie Yang +2
In this letter, we analyze a terrestrial wireless communication network assisted by an aerial intelligent reflecting surface (IRS). We consider a packet scheduling problem at the g…
An Off-grid Compressive Sensing Strategy for the Subarray Synthesis of Non-uniform Linear Arrays
Songjie Yang, Wanting Lyu, Zhongpei Zhang
With the increasing popularity of large-scale antenna arrays, the subarraying technology becomes more attractive. In this paper, we propose two effective subarraying methods right…
Optimizing the Age of Information in RIS-aided SWIPT Networks
Wanting Lyu, Yue Xiu, Jun Zhao +1
In this letter, a reconfigurable intelligent surface (RIS)-assisted simultaneous wireless information and power transfer (SWIPT) network is investigated. To quantify the freshness…
Sum-Rate Maximization in Distributed Intelligent Reflecting Surfaces-Aided mmWave Communications
Yue Xiu, Wei Sun, Jiao Wu +3
In this paper, we focus on the sum-rate optimization in a multi-user millimeter-wave (mmWave) system with distributed intelligent reflecting surfaces (D-IRSs), where a base station…
Secrecy Rate Maximization for Reconfigurable Intelligent Surface Aided Millimeter Wave System with Low-resolution DAC
Yue Xiu, Jun Zhao, Zhongpei Zhang
In this letter, we investigate the secrecy rate of an reconfigurable intelligent surface (RIS)-aided millimeter-wave (mmWave) system with hardware limitations. Compared to the RIS-…
Reconfigurable Intelligent Surfaces Aided mmWave NOMA: Joint Power Allocation,Phase Shifts, and Hybrid Beamforming Optimization
Yue Xiu, Jun Zhao, Wei Sun +4
In this paper, an reconfigurable intelligent surface (RIS)-aided millimeter wave (mmWave) non-orthogonal multiple access (NOMA) system is considered. In particular, we consider an…
Secure Beamforming for Multiple Intelligent Reflecting Surfaces Aided mmWave Systems
Yue Xiu, Jun Zhao, Chau Yuen +2
In this letter, secure beamforming in a multiple intelligent reflecting surfaces (IRSs)-aided millimeter-wave (mmWave) system is investigated. In this system, the secrecy rate is m…