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Reconfigurable intelligent surface (RIS) as an emerging cost-effective technology can enhance the spectrum- and energy-efficiency of wireless networks. In this paper, we consider an RIS-aided green edge inference system, where the inference…

信号处理 · 电气工程与系统科学 2024-10-30 Sheng Hua , Yong Zhou , Kai Yang , Yuanming Shi

Wireless powered mobile edge computing (WP-MEC) has been recognized as a promising technique to provide both enhanced computational capability and sustainable energy supply to massive low-power wireless devices. However, its energy…

信号处理 · 电气工程与系统科学 2020-03-13 Tong Bai , Cunhua Pan , Hong Ren , Yansha Deng , Maged Elkashlan , Arumugam Nallanathan

Simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) is a promising passive device that contributes to a full-space coverage via transmitting and reflecting the incident signal simultaneously. As a new…

信息论 · 计算机科学 2023-07-25 Xinyu Gao , Wenqiang Yi , Yuanwei Liu , Jianhua Zhang , Ping Zhang

In this paper, we propose a movable antenna (MA) enhanced scheme for wireless powered mobile edge computing (WP-MEC) system, where the hybrid access point (HAP) equipped with multiple MAs first emits wireless energy to charge wireless…

信息论 · 计算机科学 2024-04-30 Pengcheng Chen , Yuxuan Yang , Bin Lyu , Zhen Yang , Abbas Jamalipour

Reconfigurable intelligent surface (RIS) has emerged as a cost-effective solution to improve wireless communication performance through just passive reflection. Recently, the concept of simultaneously transmitting and reflecting RIS…

信息论 · 计算机科学 2023-11-27 Anastasios Papazafeiropoulos , Pandelis Kourtessis , Symeon Chatzinotas

A simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted simultaneous wireless information and power transfer (SWIPT) system is investigated. Both active and passive STAR-RISs are considered.…

信息论 · 计算机科学 2024-12-24 Guangyu Zhu , Xidong Mu , Li Guo , Ao Huang , Shibiao Xu

Recently, reconfigurable intelligent surface (RIS) has gained research and development interests to modify wireless channel characteristics in order to improve performance of wireless communications, especially when quality of the…

信息论 · 计算机科学 2022-09-22 Alireza Salehiyan , Mohammad Javad Emadi

Reconfigurable intelligent surface (RIS)-empowered communication is being considered as an enabling technology for sixth generation (6G) wireless networks. The key idea of RIS-assisted communication is to enhance the capacity, coverage,…

网络与互联网体系结构 · 计算机科学 2021-06-23 Mithun Mukherjee , Vikas Kumar , Mian Guo , Daniel Benevides da Costa , Ertugrul Basar , Zhiguo Ding

The novel concept of simultaneously transmitting and reflecting (STAR) reconfigurable intelligent surfaces (RISs) is investigated, where the incident wireless signal is divided into transmitted and reflected signals passing into both sides…

信息论 · 计算机科学 2022-09-14 Xidong Mu , Yuanwei Liu , Li Guo , Jiaru Lin , Robert Schober

This paper investigates an active reconfigurable intelligent surface (RIS)-aided mobile edge computing (MEC) system. Compared with passive RIS, the active RIS is equipped with active reflective amplifier, which can effectively circumvent…

信号处理 · 电气工程与系统科学 2022-09-08 Zhangjie Peng , Ruisong Weng , Zhenkun Zhang , Cunhua Pan , Jiangzhou Wang

Intelligent reflecting surface (IRS) has recently been emerged as an effective way for improving the performance of wireless networks by reconfiguring the propagation environment through a large number of passive reflecting elements. This…

信息论 · 计算机科学 2021-12-07 Parisa Ramezani , Abbas Jamalipour

Well-designed simultaneously transmitting and reflecting RIS (STAR-RIS), which extends the half-space coverage to full-space coverage, incurs wireless communication environments to be smart and reconfigurable. In this paper, we survey how…

信息论 · 计算机科学 2022-10-18 Mohammad Reza Kavianinia , Mohammad Javad Emadi

Unmanned aerial vehicle (UAV) and reconfigurable intelligent surface (RIS) have been recently applied in the field of mobile edge computing (MEC) to improve the data exchange environment by proactively changing the wireless channels through…

信号处理 · 电气工程与系统科学 2022-03-25 Zhiyuan Zhai , Xinhong Dai , Bin Duo , Xin Wang , Xiaojun Yuan

A novel movable-element enabled simultaneously transmitting and reflecting surface (ME-STARS) communication system is proposed, where ME-STARS elements positions can be adjusted to enhance the degress-of-freedom for transmission and…

信号处理 · 电气工程与系统科学 2024-12-31 Jingjing Zhao , Quan Zhou , Xidong Mu , Kaiquan Cai , Yanbo Zhu , Yuanwei Liu

While low-altitude wireless networks (LAWNs) based on uncrewed aerial vehicles (UAVs) offer high mobility, flexibility, and coverage for urban communications, they face severe signal attenuation in dense environments due to obstructions. To…

网络与互联网体系结构 · 计算机科学 2025-10-28 Xinyue Liang , Hui Kang , Junwei Che , Jiahui Li , Geng Sun , Qingqing Wu , Jiacheng Wang , Dusit Niyato

Different with conventional reconfigurable intelligent surface (RIS), simultaneous transmitting and reflecting RIS (STAR-RIS) can reflect and transmit the signals to the receiver. In this paper, to serve more ground users and increase the…

信息论 · 计算机科学 2023-05-23 Baihua Shi , Yang Wang , Danqi Li , Wenlong Cai , Jinyong Lin , Shuo Zhang , Weiping Shi , Shihao Yan , Feng Shu

In this paper, we explore optimization-based and data-driven solutions in a reconfigurable intelligent surface (RIS)-aided multi-user mobile edge computing (MEC) system, where the user equipment (UEs) can partially offload their computation…

信号处理 · 电气工程与系统科学 2021-02-16 Xiaoyan Hu , Christos Masouros , Kai-Kit Wong

The performance of cooperative ambient backscatter communications (CABC) can be enhanced by employing reconfigurable intelligent surface (RIS) to assist backscatter transmitters. Since the RIS power consumption is a non-negligible issue, we…

信息论 · 计算机科学 2022-09-08 Hui Ma , Haijun Zhang , Ning Zhang , Jianquan Wang , Ning Wang , Victor C. M. Leung

The development of sixth-generation (6G) communication technologies is confronted with the significant challenge of spectrum resource shortage. To alleviate this issue, we propose a novel simultaneously transmitting and reflecting…

信号处理 · 电气工程与系统科学 2024-12-03 Haochen Li , Yuanwei Liu , Xidong Mu , Yue Chen , Zhiwen Pan , Xiaohu You

Reconfigurable intelligent surface (RIS) is a promising technology for RF wireless power transfer (WPT) as it is capable of beamforming and beam focusing without using active and power-hungry components. In this paper, we propose a…

信号处理 · 电气工程与系统科学 2024-10-28 Nguyen Minh Tran , Muhammad Miftahul Amri , Je Hyeon Park , Dong In Kim , Kae Won Choi