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This paper investigates a wireless powered mobile edge computing (WP-MEC) network with multiple hybrid access points (HAPs) in a dynamic environment, where wireless devices (WDs) harvest energy from radio frequency (RF) signals of HAPs, and…

网络与互联网体系结构 · 计算机科学 2024-12-16 Xiaoying Liu , Anping Chen , Kechen Zheng , Kaikai Chi , Bin Yang , Tarik Taleb

Distributed antenna systems (DAS) have been widely implemented in state-of-the-art cellular communication systems to cover dead spots. Recent studies have also indicated that DAS have advantages in wireless energy transfer (WET). In this…

信息论 · 计算机科学 2016-06-16 Fangchao Yuan , Shi Jin , Kai-Kit Wong , Hongbo Zhu

This letter proposes a new user cooperative offloading protocol called user reciprocity in backscatter communication (BackCom)-aided mobile edge computing systems with efficient computation, whose quintessence is that each user can switch…

信息论 · 计算机科学 2024-01-02 Bowen Gu , Hao Xie , Dong Li

Mobile edge computing (MEC) has recently become a prevailing technique to alleviate the intensive computation burden in Internet of Things (IoT) networks. However, the limited device battery capacity and stringent spectrum resource…

信息论 · 计算机科学 2021-06-29 Xian Li , Suzhi Bi , Zhi Quan , Hui Wang

This paper studies a wireless powered mobile edge computing (MEC) system, where a dedicated energy transmitter (ET) uses the radio-frequency (RF) signal enabled wireless power transfer (WPT) to charge wireless devices for sustainable…

信息论 · 计算机科学 2018-09-06 Dixiao Wu , Feng Wang , Xiaowen Cao , Jie Xu

Mobile-edge computing (MEC) offloads computational tasks from wireless devices to network edge, and enables real-time information transmission and computing. Most existing work concerns a small-scale synchronous MEC system. In this paper,…

信息论 · 计算机科学 2021-02-03 Yizhen Xu , Peng Cheng , Zhuo Chen , Ming Ding , Branka Vucetic , Yonghui Li

A novel hybrid active-passive reconfigurable intelligent surface (RIS) transmitter enabled downlink multi-user communication system is investigated. Specifically, RISs are exploited to serve as transmitter antennas, where each element can…

信息论 · 计算机科学 2024-03-05 Ao Huang , Xidong Mu , Li Guo , Guangyu Zhu

In this paper, we investigate the energy efficiency (EE) problem under reconfigurable intelligent surface (RIS)-aided secure cell-free networks, where multiple legitimate users and eavesdroppers (Eves) exist. We formulate a max-min secure…

信息论 · 计算机科学 2022-11-11 Wanming Hao , Junjie Li , Gangcan Sun , Chongwen Huang , Ming Zeng , Octavia A. Dobre , Chau Yuen

The adoption of reconfigurable intelligent surface (RIS) in wireless networks can enhance the spectrum- and energy-efficiency by controlling the propagation environment. Although the RIS does not consume any transmit power, the circuit…

信息论 · 计算机科学 2020-05-05 Siyuan Sun , Min Fu , Yuanming Shi , Yong Zhou

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

This paper investigates the role and the impact of control operations for dynamic mobile edge computing (MEC) empowered by Reconfigurable Intelligent Surfaces (RISs), in which multiple devices offload their computation tasks to an access…

信号处理 · 电气工程与系统科学 2026-03-16 Fabio Saggese , Victor Croisfelt , Francesca Costanzo , Junya Shiraishi , Radosław Kotaba , Paolo Di Lorenzo , Petar Popovski

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 capable of amplifying and reflecting the incident signal. To…

信号处理 · 电气工程与系统科学 2022-10-05 Wanting Lyu , Yue Xiu , Songjie Yang , Chau Yuen , Zhongpei Zhang

This paper focuses on developing energy-efficient online data processing strategy of wireless powered MEC systems under stochastic fading channels. In particular, we consider a hybrid access point (HAP) transmitting RF energy to and…

信息论 · 计算机科学 2021-11-05 Xian Li , Suzhi Bi , Yuan Zheng , Hui Wang

Multi-access edge computing (MEC) technology is a promising solution to assist power-constrained IoT devices by providing additional computing resources for time-sensitive tasks. In this paper, we consider the problem of optimal task…

信息论 · 计算机科学 2025-02-03 Shubham Aggarwal , Muhammad Aneeq uz Zaman , Melih Bastopcu , Sennur Ulukus , Tamer Başar

The integration of simultaneous wireless information and power transfer (SWIPT) technology in 6G Internet of Things (IoT) networks faces significant challenges in remote areas and disaster scenarios where ground infrastructure is…

机器学习 · 计算机科学 2025-05-22 Yue Chen , Hui Kang , Jiahui Li , Geng Sun , Boxiong Wang , Jiacheng Wang , Cong Liang , Shuang Liang , Dusit Niyato

In this paper, we consider a multi-user mobile edge computing (MEC) network powered by wireless power transfer (WPT), where each energy-harvesting WD follows a binary computation offloading policy, i.e., data set of a task has to be…

分布式、并行与集群计算 · 计算机科学 2018-03-26 Suzhi Bi , Ying-Jun Angela Zhang

The Internet of Things (IoT) has been increasingly used in our everyday lives as well as in numerous industrial applications. However, due to limitations in computing and power capabilities, IoT devices need to send their respective tasks…

网络与互联网体系结构 · 计算机科学 2025-07-01 Ziad Qais Al Abbasi , Khaled M. Rabie , Senior Member , Xingwang Li , Senior Member , Wali Ullah Khan , Asma Abu Samah

In future sixth-generation (6G) mobile networks, the Internet-of-Everything (IoE) is expected to provide extremely massive connectivity for small battery-powered devices. Indeed, massive devices with limited energy storage capacity impose…

信息论 · 计算机科学 2022-01-31 Enyu Shi , Jiayi Zhang , Shuaifei Chen , Jiakang Zheng , Yan Zhang , Derrick Wing Kwan Ng , Bo Ai

Computation offloading in multi-access edge computing (MEC) is an effective paradigm for enabling resource-intensive smart applications. However, when the wireless channel utilized for offloading computing activities is hostile, the proper…

信号处理 · 电气工程与系统科学 2022-06-14 Mobasshir Mahbub , Raed M. Shubair

Mobile-edge computing (MEC) has recently emerged as a cost-effective paradigm to enhance the computing capability of hardware-constrained wireless devices (WDs). In this paper, we first consider a two-user MEC network, where each WD has a…

分布式、并行与集群计算 · 计算机科学 2019-09-24 Jia Yan , Suzhi Bi , Ying-Jun Angela Zhang , Meixia Tao