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相关论文: Probabilistic Accumulate-then-Transmit in Wireless…

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The emerging pinching antenna (PA) technology enables flexible antenna positioning for creating line-of-sight (LoS) links, thus offering substantial potential to facilitate ambient signal-based backscatter communication (BSC). This paper…

信号处理 · 电气工程与系统科学 2025-12-15 Yulei Wang , Yalin Liu , Yaru Fu , Yuanwei Liu

This paper introduces a dual-mode communication framework for wireless devices that integrates query-driven (pull) and event-driven (push) transmissions within a unified time-frame structure. Devices typically respond to information…

网络与互联网体系结构 · 计算机科学 2025-08-01 Sara Cavallero , Fabio Saggese , Junya Shiraishi , Israel Leyva-Mayorga , Shashi Raj Pandey , Chiara Buratti , Petar Popovski

In this letter, we deal with the age of information (AoI) for a sensor network with wireless power transfer (WPT) capabilities. Specifically, we study a simple network topology, where a sensor node harvests energy from radio frequency…

信号处理 · 电气工程与系统科学 2018-12-19 Ioannis Krikidis

In the IEEE 802.11ax standard, a mode of operation called target wake time (TWT) is introduced towards enabling deterministic scheduling in WLAN networks. In the TWT mode, a group of stations (STAs) can negotiate with the access point (AP)…

网络与互联网体系结构 · 计算机科学 2023-02-23 Rishabh Roy , Rajshekhar V Bhat , Preyas Hathi , Nadeem Akhtar , Naveen Mysore Balasubramanya

Over-the-air aggregation has attracted widespread attention for its potential advantages in task-oriented applications, such as distributed sensing, learning, and consensus. In this paper, we develop a communication-efficient distributed…

信号处理 · 电气工程与系统科学 2024-03-12 Huiwen Yang , Xiaomeng Chen , Lingying Huang , Subhrakanti Dey , Ling Shi

Simultaneous Wireless Information and Power Transfer (SWIPT) is subject to nonlinearity at the energy harvester that leads to significant changes to transmit signal designs compared to conventional wireless communications. In this paper,…

信息论 · 计算机科学 2018-05-11 Morteza Varasteh , Borzoo Rassouli , Hamdi Joudeh , Bruno Clerckx

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)…

信号处理 · 电气工程与系统科学 2019-02-27 Omid Rezaei , Mohammad Mahdi Naghsh , Zahra Rezaei , Rui Zhang

As wireless has disrupted communications, wireless will also disrupt the delivery of energy. Future wireless networks will be equipped with (radiative) wireless power transfer (WPT) capability and exploit radio waves to carry both energy…

信息论 · 计算机科学 2022-09-09 Bruno Clerckx , Junghoon Kim , Kae Won Choi , Dong In Kim

This paper is concerned with the distributed composite optimization problem over networks, where agents aim to minimize a sum of local smooth components and a common nonsmooth term. Leveraging the probabilistic local updates mechanism, we…

最优化与控制 · 数学 2026-02-19 Luyao Guo , Xinli Shi , Wenying Xu , Jinde Cao

While wired-power-transfer devices ensure robust power delivery even if the receiver position or load impedance changes, achieving the robustness of wireless power transfer (WPT) is challenging. Conventional solutions are based on…

应用物理 · 物理学 2020-01-09 Fu Liu , Bhakti Chowkwale , Prasad Jayathurathnage , Sergei Tretyakov

In traditional cognitive radio networks, secondary users (SUs) typically access the spectrum of primary users (PUs) by a two-stage "listen-before-talk" (LBT) protocol, i.e., SUs sense the spectrum holes in the first stage before…

网络与互联网体系结构 · 计算机科学 2016-02-25 Yun Liao , Tianyu Wang , Lingyang Song , Zhu Han

This paper delves into the time-efficient covert multicast in a wireless communication system facilitated by Unmanned Aerial Vehicle (UAV), in which the UAV aims to disseminate a common covert information to multiple ground users (GUs)…

密码学与安全 · 计算机科学 2024-10-17 Wenhao Zhang , Ji He , Yuanyu Zhang

This paper develops and evaluates the performance of an advanced multiple access protocol for transmission of full complement of multimedia signals consisting of various combinations of voice, video, data, text and images over wireless…

网络与互联网体系结构 · 计算机科学 2012-05-23 Hong Yu

This paper proposes and analyzes a new full-duplex (FD) cooperative cognitive radio network with wireless energy harvesting (EH). We consider that the secondary receiver is equipped with a FD radio and acts as a FD hybrid access point…

信息论 · 计算机科学 2017-03-21 Rui Zhang , He Chen , Phee Lep Yeoh , Yonghui Li , Branka Vucetic

In this paper, a wireless powered communication network (WPCN) consisting of a hybrid access point (H-AP) and multiple user equipment (UEs), all of which operate in full-duplex (FD), is described. We first propose a transceiver structure…

信息论 · 计算机科学 2017-06-28 Hyungsik Ju , Yuro Lee , Tae-Joong Kim

Unmanned aerial vehicles (UAVs) can provide wireless access to terrestrial users, regardless of geographical constraints, and will be an important part of future communication systems. In this paper, a multi-user downlink dual-UAVs enabled…

信息论 · 计算机科学 2023-10-24 Hongjiang Lei , Jiacheng Jiang , Imran Shafique Ansari , Gaofeng Pan , Mohamed-Slim Alouini

We analyze the performance of amplify-and-forward (AF) automatic repeat request (ARQ) for a two-hop cooperative system with reliability constrains. For this setup, we first derive the closed-form outage probability expression. Next, we…

信息论 · 计算机科学 2019-04-16 Endrit Dosti , Themistoklis Charalambous , Risto Wichman

Radio frequency (RF) wireless power transfer (WPT) is a key technology for future low-power wireless systems. However, the inherently low end-to-end power transfer efficiency (PTE) is challenging for practical applications. The main factors…

信号处理 · 电气工程与系统科学 2024-05-10 Abdul Basit Khattak , Onel L. A. López , Amirhossein Azarbahram , Deepak Kumar , Matti Latva-aho

We investigate antenna coding utilizing pixel antennas as a new degree of freedom for enhancing multiple-input multiple-output (MIMO) wireless power transfer (WPT) systems. The objective is to enhance the output direct current (DC) power…

信号处理 · 电气工程与系统科学 2026-01-13 Yijun Chen , Shanpu Shen , Tianrui Qiao , Hongyu Li , Kai-Kit Wong , Ross Murch

We consider a wireless node that randomly receives data from different sensor units. The arriving data must be compressed, stored, and transmitted over a wireless link, where both the compression and transmission operations consume power.…

最优化与控制 · 数学 2008-07-25 Michael J. Neely , Abhishek Sharma