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Wireless energy transfer (WET) is a promising solution to enable massive machine-type communications (mMTC) with low-complexity and low-powered wireless devices. Given the energy restrictions of the devices, instant channel state…

Signal Processing · Electrical Eng. & Systems 2022-08-04 Francisco A. Monteiro , Onel L. A. López , Hirley Alves

This paper considers a broadcast multiple-input multiple-output (MIMO) network with multiple users and simultaneous wireless information and power transfer (SWIPT). In this scenario, it is assumed that some users are able to harvest power…

Signal Processing · Electrical Eng. & Systems 2024-12-04 Javier Rubio , Antonio Pascual-Iserte

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…

Information Theory · Computer Science 2022-01-31 Enyu Shi , Jiayi Zhang , Shuaifei Chen , Jiakang Zheng , Yan Zhang , Derrick Wing Kwan Ng , Bo Ai

This paper considers a wireless powered multiuser mobile edge computing (MEC) system, where a multi-antenna access point (AP) employs the radio-frequency (RF) signal based wireless power transfer (WPT) to charge a number of distributed…

Information Theory · Computer Science 2019-02-26 Feng Wang , Hong Xing , Jie Xu

This paper studies multi-user wireless powered communication networks, where energy constrained users charge their energy storages by scavenging energy of the radio frequency signals radiated from a hybrid access point (H-AP). The energy is…

Information Theory · Computer Science 2023-12-05 Hoon Lee , Kyoung-Jae Lee , Hanjin Kim , Bruno Clerckx , Inkyu Lee

This paper considers the transmitter design for wireless information and energy transfer (WIET) in a multiple-input single-output (MISO) interference channel (IFC). The design problem is to maximize the system throughput (i.e., the weighted…

Information Theory · Computer Science 2015-06-16 Chao Shen , Wei-Chiang Li , Tsung-Hui Chang

This paper studies a general multi-user wireless powered interference channel (IFC) under the harvest-then-transmit protocol, where the communication in channel coherence time consists of two phases, namely wireless energy transfer (WET)…

Signal Processing · Electrical Eng. & Systems 2019-02-27 Omid Rezaei , Mohammad Mahdi Naghsh , Zahra Rezaei , Rui Zhang

We consider the cell-free massive multiple-input multiple-output (MIMO) downlink, where a very large number of distributed multiple-antenna access points (APs) serve many single-antenna users in the same time-frequency resource. A simple…

Information Theory · Computer Science 2017-11-27 Hien Quoc Ngo , Le-Nam Tran , Trung Q. Duong , Michail Matthaiou , Erik G. Larsson

This paper investigates unmanned aerial vehicle (UAV)-aided wireless powered communication network (WPCN) systems where a mobile access point (AP) at the UAV serves multiple energy-constrained ground terminals (GTs). Specifically, the UAVs…

Information Theory · Computer Science 2018-01-10 Junhee Park , Hoon Lee , Subin Eom , Inkyu Lee

In this paper, we propose a wirelessly powered Internet of Things (IoT) system based on the cell-free massive MIMO technology. In such a system, during the downlink phase, the sensors harvest radio-frequency (RF) energy emitted by the…

Signal Processing · Electrical Eng. & Systems 2020-01-07 Xinhua Wang , Alexei Ashikhmin , Xiaodong Wang

This paper develops a novel approach to obtaining the optimal scheduling strategy in a multi-input multi-output (MIMO) multi-access channel (MAC), where each transmitter is powered by an individual energy harvesting process. Relying on the…

Information Theory · Computer Science 2017-09-28 Zheng Nan , Wenming Li

The IEEE 802.11ac/n introduced frame aggregation technology to accommodate the growing traffic demand and increase the performance of transmission efficiency and channel utilization. This is achieved by allowing many packets to be…

Networking and Internet Architecture · Computer Science 2022-09-28 Lemlem Kassa , Jianhua Deng , Mark Davis , Jingye Cai

Simultaneous wireless information and power transfer (SWIPT) is anticipated to have great applications in fifth-generation (5G) and beyond communication systems. In this paper, we address the energy efficiency (EE) optimization problem for…

Information Theory · Computer Science 2017-10-24 Jie Tang , Daniel K. C. So , Arman Shojaeifard , Kai-Kit Wong

Multi-user Multiple-Input Multiple-Output (MIMO) offers big advantages over conventional point-to-point MIMO: it works with cheap single-antenna terminals, a rich scattering environment is not required, and resource allocation is simplified…

Information Theory · Computer Science 2016-11-18 Erik G. Larsson , Ove Edfors , Fredrik Tufvesson , Thomas L. Marzetta

This paper studies cell-free massive multiple-input multiple-output (CF-mMIMO) systems that underpin simultaneous wireless information and power transfer (SWIPT) for separate information users (IUs) and energy users (EUs) in Internet of…

Information Theory · Computer Science 2025-05-08 Mohammadali Mohammadi , Le-Nam Tran , Zahra Mobini , Hien Quoc Ngo , Michail Matthaiou

This paper considers secure simultaneous wireless information and power transfer (SWIPT) in cell-free massive multiple-input multiple-output (MIMO) systems. The system consists of a large number of randomly (Poisson-distributed) located…

Information Theory · Computer Science 2019-04-26 Mahmoud Alageli , Aissa Ikhlef , Fahad Alsifiany , Mohammed A. M. Abdullah , Gaojie Chen , Jonathon Chambers

In this paper, we study the average throughput performance of energy beamforming in a multi-antenna wireless-powered communication network (WPCN). The considered network consists of one hybrid access-point (AP) with multiple antennas and a…

Information Theory · Computer Science 2016-11-17 Wenzhu Huang , He Chen , Yonghui Li , Branka Vucetic

Multi-antenna or multiple-input multiple-output (MIMO) technique can significantly improve the efficiency of radio frequency (RF) signal enabled wireless energy transfer (WET). To fully exploit the energy beamforming gain at the energy…

Information Theory · Computer Science 2016-05-04 Jie Xu , Rui Zhang

This paper investigates a three-node amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay network, where an autonomous relay harvests power from the source information flow and is further helped by an energy flow in the form…

Information Theory · Computer Science 2015-02-25 Yang Huang , Bruno Clerckx

Wireless energy transfer (WET) has attracted significant attention recently for providing energy supplies wirelessly to electrical devices without the need of wires or cables. Among different types of WET techniques, the radio frequency…

Information Theory · Computer Science 2015-06-18 Jie Xu , Rui Zhang