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Recently, energy encryption for wireless power transfer has been developed for energy safety, which is important in public places to suppress unauthorized energy extraction. Most techniques vary the frequency so that unauthorized receivers…

系统与控制 · 电气工程与系统科学 2024-06-19 Hui Wang , Nima Tashakor , Wei Jiang , Wei Liu , C. Q. Jiang , Stefan M. Goetz

Integrated sensing and communications (ISAC) is envisioned as a key feature in future wireless communications networks. Its integration with massive multiple-input-multiple-output (MIMO) techniques promises to leverage substantial spatial…

信号处理 · 电气工程与系统科学 2025-03-19 Nhan Thanh Nguyen , Van-Dinh Nguyen , Hieu V. Nguyen , Hien Quoc Ngo , A. Lee Swindlehurst , Markku Juntti

In this paper, the problem of dynamic spectrum sensing and aggregation is investigated in a wireless network containing N correlated channels, where these channels are occupied or vacant following an unknown joint 2-state Markov model. At…

信号处理 · 电气工程与系统科学 2020-07-29 Yunzeng Li , Wensheng Zhang , Cheng-Xiang Wang , Jian Sun , Yu Liu

In this paper, we study energy-efficient resource allocation in distributed antenna system (DAS) with wireless power transfer, where time-division multiple access (TDMA) is adopted for downlink multiuser information transmission. In…

信息论 · 计算机科学 2018-10-11 Yuwen Huang , Yuan Liu , Geoffrey Ye Li

Radio-frequency energy harvesting constitutes an effective way to prolong the lifetime of wireless networks, wean communication devices off the battery and power line, benefit the energy saving and lower the carbon footprint of wireless…

信息论 · 计算机科学 2018-02-13 Yanju Gu , Sonia Aïssa

The advance in RF energy transfer and harvesting technique over the past decade has enabled wireless energy replenishment for electronic devices, which is deemed as a promising alternative to address the energy bottleneck of conventional…

信息论 · 计算机科学 2015-01-06 Xiao Lu , Ian Flint , Dusit Niyato , Nicolas Privault , Ping Wang

This paper proposes a novel approach to improve the performance of a heterogeneous network (HetNet) supported by dual connectivity (DC) by adopting multiple unmanned aerial vehicles (UAVs) as passive relays that carry reconfigurable…

Network energy efficiency is a main pillar in the design and operation of wireless communication systems. In this paper, we investigate a dense radio access network (dense-RAN) capable of radiated power management at the base station (BS).…

信号处理 · 电气工程与系统科学 2023-04-18 Yuchao Chang , Wen Chen , Jun Li , Jianpo Liu , Haoran Wei , Zhendong Wang , Naofal Al-Dhahir

Energy harvesting (EH) combined with cooperative communications constitutes a promising solution for future wireless technologies. They enable additional efficiency and increased lifetime to wireless networks. This paper investigates a…

网络与互联网体系结构 · 计算机科学 2018-04-11 Ahmad Alsharoa , Hakim Ghazzai , Ahmed E Kamal , Abdullah Kadri

RadioWeaves network operates a large number of distributed antennas using cell-free architecture to provide high data rates and support a large number of users. Operating this network in an energy-efficient manner in the limited available…

信息论 · 计算机科学 2022-08-10 Zakir Hussain Shaik , Rimalapudi Sarvendranath , Erik G. Larsson

Conventional wireless power transfer systems consist of a microwave power generator and a microwave power receiver separated by some distance. To realize efficient power transfer, the system is typically brought to resonance, and the…

应用物理 · 物理学 2018-08-29 Y. Ra'di , B. Chowkwale , C. A. Valagiannopoulos , F. Liu , A. Alu , C. R. Simovski , S. A. Tretyakov

Intelligent Reflecting Surface (IRS) technology is revolutionizing wireless communications by shifting from channel adaptation to a responsive wireless environment. This paper introduces a multi-IRS assisted millimeter wave (mm-wave)…

信号处理 · 电气工程与系统科学 2024-01-04 Alireza Qazavi Khorasgani , Foroogh S. Tabataba , Mehdi Naderi Soorki , Mohammad Sadegh Fazel

Reduction of wireless network energy consumption is becoming increasingly important to reduce environmental footprint and operational costs. A key concept to achieve it is the use of lean transmission techniques that dynamically…

信息论 · 计算机科学 2023-09-06 François Rottenberg

This work develops a novel power control framework for energy-efficient power control in wireless networks. The proposed method is a new branch-and-bound procedure based on problem-specific bounds for energy-efficiency maximization that…

信息论 · 计算机科学 2020-07-13 Bho Matthiesen , Alessio Zappone , Karl-L. Besser , Eduard A. Jorswieck , Merouane Debbah

This letter introduces a novel framework to optimize the power allocation for users in a Rate Splitting Multiple Access (RSMA) network. In the network, messages intended for users are split into different parts that are a single common part…

信息论 · 计算机科学 2021-10-06 Nguyen Quang Hieu , Dinh Thai Hoang , Dusit Niyato , Dong In Kim

This paper presents a performance evaluation of Wireless Sensor Networks (WSN) based on Impulse Radio Ultra Wideband (IR-UWB) over a new simulation platform developed for this purpose. The simulation platform is built on an existing network…

网络与互联网体系结构 · 计算机科学 2010-02-03 Aubin Lecointre , Abdoulaye Berthe , Daniela Dragomirescu , Robert Plana

Extensive energy is consumed by Transceiver communication operation [1]. Existing research on MAC layer focuses to maximize battery-powered sensor node's life. Bottleneck of MAC layer protocol design for WBAN is to achieve high reliability…

网络与互联网体系结构 · 计算机科学 2016-11-17 A. Rahim , N. Javaid , M. Aslam , U. Qasim , Z. A. Khan

Wireless power transfer (WPT) is a promising technology for powering up distributed devices in machine type networks. Over the last decade magnetic resonant coupling (MRC) received significant interest from the research community, since it…

信号处理 · 电气工程与系统科学 2021-12-07 Eleni Demarchou , Constantinos Psomas , Ioannis Krikidis

We consider a hybrid active-passive radar system that employs a wireless source as a passive illuminator of opportunity (IO) and a co-channel active radar transmitter operating in the same frequency band to seek spectral efficiency. The…

信号处理 · 电气工程与系统科学 2020-02-19 Fangzhou Wang , Hongbin Li

Recent advances in microelectronics have enabled the realization of Wireless Body Area Networks (WBANs). Increasing the transmission power of WBAN's nodes improves the Signal to Interference plus Noise Ratio (SINR), and hence decreases the…

网络与互联网体系结构 · 计算机科学 2017-01-31 Mohamad Jaafar Ali , Hassine Moungla , Ahmed Mehaoua