17 citations · 26 across the 7 of their papers we have counts for
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How Much Time is Required for Phase Shift Delivery in RIS-Aided Wireless Systems?
Hao Xie, Dong Li
Reconfigurable intelligent surface (RIS) has become a focal point of extensive research due to its remarkable "squared gain". However, achieving a substantial beamforming gain typi…
Enhancing Spectrum Sensing via Reconfigurable Intelligent Surfaces: Passive or Active Sensing and How Many Reflecting Elements are Needed?
Hao Xie, Dong Li, Bowen Gu
Cognitive radio has been proposed to alleviate the scarcity of available spectrum caused by the significant demand for wideband services and the fragmentation of spectrum resources…
Computation-Efficient Backscatter-Blessed MEC with User Reciprocity
Bowen Gu, Hao Xie, Dong Li
This letter proposes a new user cooperative offloading protocol called user reciprocity in backscatter communication (BackCom)-aided mobile edge computing systems with efficient co…
To Reflect or Not To Reflect: On-Off Control and Number Configuration for Reflecting Elements in RIS-Aided Wireless Systems
Hao Xie, Dong Li
Reconfigurable intelligent surface (RIS) has been regarded as a promising technique due to its high array gain and low power. However, the traditional passive RIS suffers from the…
Exploring Hybrid Active-Passive RIS-Aided MEC Systems: From the Mode-Switching Perspective
Hao Xie, Dong Li, Bowen Gu
Mobile edge computing (MEC) has been regarded as a promising technique to support latencysensitivity and computation-intensive serves. However, the low offloading rate caused by th…
Gain without Pain: Recycling Reflected Energy from Wireless Powered RIS-aided Communications
Hao Xie, Bowen Gu, Dong Li +2
In this paper, we investigate and analyze energy recycling for a reconfigurable intelligent surface (RIS)-aided wireless-powered communication network. As opposed to the existing w…
Exploiting Hybrid Active and Passive Multiple Access via Slotted ALOHA-Driven Backscatter Communications
Bowen Gu, Dong Li, Hao Xie +3
In conventional backscatter communication (BackCom) systems, time division multiple access (TDMA) and frequency division multiple access (FDMA) are generally adopted for multiuser…