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08/20/2022
Intelligent Omni-Surfaces: Simultaneous Refraction and Reflection for Full-dimensional Wireless Communications
The development of metasurfaces has unlocked various use cases in wirele...
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07/06/2022
Reconfigurable Refractive Surfaces: An Energy-Efficient Way to Holographic MIMO
Holographic Multiple Input Multiple Output (HMIMO), which integrates mas...
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01/25/2022
Towards Ubiquitous Sensing and Localization With Reconfigurable Intelligent Surfaces
In future cellular systems, wireless localization and sensing functions ...
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04/26/2021
Intelligent Reflective-Transmissive Metasurfaces for Full-Dimensional Communications: Principles, Technologies, and Implementation
The recent development of metasurfaces has shown the potential to signif...
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04/22/2021
Trajectory Optimization and Resource Allocation for OFDMA UAV Relay Networks
In this paper, we consider a single-cell multi-user orthogonal frequency...
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02/13/2021
Reconfigurable Intelligent Surfaces in 6G: Reflective, Transmissive, or Both?
Reconfigurable intelligent surfaces (RISs) have attracted wide interest ...
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12/19/2020
Reconfigurable Intelligent Surface assisted Multi-user Communications: How Many Reflective Elements Do We Need?
Reconfigurable intelligent surfaces (RISs) consisting of multiple reflec...
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11/17/2020
Beyond Cell-free MIMO: Energy Efficient Reconfigurable Intelligent Surface Aided Cell-free MIMO Communications
Cell-free systems can effectively eliminate the inter-cell interference ...
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09/17/2020
Reconfigurable Intelligent Surface (RIS) Assisted Wireless Coverage Extension: RIS Orientation and Location Optimization
Recently, reconfigurable intelligent surfaces (RIS) have attracted a lot...
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12/03/2019
Reconfigurable Intelligent Surfaces assisted Communications with Limited Phase Shifts: How Many Phase Shifts Are Enough?
Reconfigurable intelligent surface (RIS) has drawn a great attention wor...
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10/31/2019
Hybrid Beamforming for Reconfigurable Intelligent Surface based Multi-user Communications: Achievable Rates with Limited Discrete Phase Shifts
Reconfigurable intelligent surface (RIS) has drawn considerable attentio...
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03/07/2019
IoT-U: Cellular Internet-of-Things Networks over Unlicensed Spectrum
In this paper, we consider an uplink cellular Internet-of-Things (IoT) n...
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02/04/2019
TCM-NOMA: Joint Multi-user Codeword Design and Detection in Trellis Coded Modulation based NOMA for Beyond 5G
In this paper, we propose a novel non-orthogonal multiple access (NOMA) ...
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01/27/2019
HetMEC: Latency-optimal Task Assignment and Resource Allocation for Heterogeneous Mobile Edge Computing
Driven by great demands on low-latency services of the edge devices (EDs...
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11/13/2018