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As Internet of Things (IoT) devices proliferate, sustainable methods for powering them are becoming indispensable. The wireless provision of power enables battery-free operation and is crucial for complying with weight and size…

Information Theory · Computer Science 2024-06-04 Kenneth M. Mayer , Laura Cottatellucci , Robert Schober

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

The performance of wireless communication is fundamentally constrained by the limited battery life of wireless devices, whose operations are frequently disrupted due to the need of manual battery replacement/recharging. The recent advance…

Networking and Internet Architecture · Computer Science 2016-11-17 Suzhi Bi , Chin Keong Ho , Rui Zhang

In this paper, we consider a cognitive radio network in which energy constrained secondary users (SUs) can harvest energy from the randomly deployed power beacons (PBs). A new frame structure is proposed for the considered network. A…

Information Theory · Computer Science 2016-01-26 Zhijin Qin , Yuanwei Liu , Yue Gao , Maged Elkashlan , Arumugam Nallanathan

This paper presents strategies for enhancing the robustness of bidirectional quantum teleportation (BQT) through environment-assisted and weak measurement techniques. BQT is a crucial component of distributed quantum networks, allowing for…

Quantum Physics · Physics 2025-08-01 Javid Ahmad Malik , Muzaffar Qadir Lone , Prince A Ganai

A key feature in the design of any MAC protocol is the throughput it can provide. In wireless networks, the channel of a user is not fixed but varies randomly. Thus, in order to maximize the throughput of the MAC protocol at any given time,…

Information Theory · Computer Science 2009-09-17 Syed T. Qaseem , Tareq Y. Al-Naffouri

This paper investigates covert data transmission within a multiple-input multiple-output (MIMO) over-the-air computation (AirComp) network, where sensors transmit data to the access point (AP) while guaranteeing covertness to the warden…

Signal Processing · Electrical Eng. & Systems 2024-03-18 Junteng Yao , Tuo Wu , Ming Jin , Cunhua Pan , Quanzhong Li , Jinhong Yuan

Mobile-edge computing (MEC) and wireless power transfer (WPT) have been recognized as promising techniques in the Internet of Things (IoT) era to provide massive low-power wireless devices with enhanced computation capability and…

Information Theory · Computer Science 2017-12-19 Feng Wang , Jie Xu , Xin Wang , Shuguang Cui

In this paper, we optimize a Wireless Powered Communication (WPC) system including multiple pair of users, where transmitters employ single-antenna to transmit their information and power to their receivers with the help of one…

Signal Processing · Electrical Eng. & Systems 2023-01-03 Omid Rezaei , Maryam Masjedi , Ali Kanaani , Mohammad Mahdi Naghsh , Saeed Gazor , Mohammad Mahdi Nayebi

A primary challenge in wireless power transfer (WPT) systems is to achieve efficient and stable power transmission without complex control strategies when load conditions change dynamically. Addressing this issue, we propose a third-order…

We consider the problem of covert communication over a state-dependent channel, where the transmitter has causal or noncausal knowledge of the channel states. Here, "covert" means that a warden on the channel should observe similar…

Information Theory · Computer Science 2017-08-09 Si-Hyeon Lee , Ligong Wang , Ashish Khisti , Gregory W. Wornell

This work considers covert communications in the context of unmanned aerial vehicle (UAV) networks, aiming to hide a UAV for transmitting critical information out of a scenario that is monitored and where communication is not allowed.…

Information Theory · Computer Science 2019-09-04 Xiaobo Zhou , Shihao Yan , Jinsong Hu , Jiande Sun , Jun Li , Feng Shu

Wireless power transfer (WPT) technology provides a cost-effective solution to achieve sustainable energy supply in wireless networks, where WPT-enabled energy nodes (ENs) can charge wireless devices (WDs) remotely without interruption to…

Networking and Internet Architecture · Computer Science 2016-08-17 Suzhi Bi , Rui Zhang

The newly emerging wireless powered communication networks (WPCNs) have recently drawn significant attention, where radio signals are used to power wireless terminals for information transmission. In this paper, we study a WPCN where one…

Information Theory · Computer Science 2014-04-16 Liang Liu , Rui Zhang , Kee-Chaing Chua

Covert communication conceals the transmission of the message from an attentive adversary. Recent work on the limits of covert communication in additive white Gaussian noise (AWGN) channels has demonstrated that a covert transmitter (Alice)…

Information Theory · Computer Science 2018-09-25 Ramin Soltani , Dennis Goeckel , Don Towsley , Boulat Bash , Saikat Guha

As a long-range high-power wireless power transfer (WPT) technology, resonant beam charging (RBC) can transmit Watt-level power over long distance for the devices in the internet of things (IoT). Due to its open-loop architecture, RBC faces…

Systems and Control · Computer Science 2018-09-26 Qingqing Zhang , Wen Fang , Mingliang Xiong , Qingwen Liu , Jun Wu , Pengfei Xia

A Heterogeneous Network (HetNet) comprises of multiple Radio Access Technologies (RATs) allowing a user to associate with a specific RAT and steer to other RATs in a seamless manner. To cope up with the unprecedented growth of data traffic,…

Networking and Internet Architecture · Computer Science 2017-05-23 Arghyadip Roy , Prasanna Chaporkar , Abhay Karandikar

Free positioning of receivers is one of the key requirements for many wireless power transfer (WPT) applications, required from the end-user point of view. However, realization of stable and effective wireless power transfer for freely…

Signal Processing · Electrical Eng. & Systems 2019-09-26 Prasad Jayathurathnage , Xiaojie Dang , Sergei A. Tretyakov , Constantin Simovski

This paper investigates PASS-enabled downlink covert communication in the presence of distributed surveillance, where multiple wardens perform signal detection and fuse their local binary decisions via majority-voting rule. We consider a…

Information Theory · Computer Science 2026-01-13 Ji He

Ambient backscatter (AB) communication is an emerging wireless communication technology that enables wireless devices (WDs) to communicate without requiring active radio transmission. In an AB communication system, a WD switches between…

Networking and Internet Architecture · Computer Science 2019-01-04 Xiaokang Wen , Suzhi Bi , Xiaohui Lin , Lina Yuan , Juan Wang