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This paper investigates the virtualization and optimization of a multi-cell WLAN. We consider the station (STA)-access point (AP) association and airtime control for virtualized 802.11 networks to provide service customization and fairness…

网络与互联网体系结构 · 计算机科学 2015-08-17 Mahsa Derakhshani , Xiaowei Wang , Tho Le-Ngoc , Alberto Leon-Garcia

This paper investigates an average secrecy rate (ASR) maximization problem for an unmanned aerial vehicle (UAV) enabled wireless communication system, wherein a UAV is employed to deliver confidential information to a ground destination in…

信息论 · 计算机科学 2021-02-23 Milad Tatar Mamaghani , Yi Hong

We consider the problem of non-coherent over-the-air computation (AirComp), where $n$ devices carry high-dimensional data vectors $\mathbf{x}_i\in\mathbb{R}^d$ of sparsity $\lVert\mathbf{x}_i\rVert_0\leq k$ whose sum has to be computed at a…

信号处理 · 电气工程与系统科学 2025-10-22 Henrik Hellström , Jiwon Jeong , Ayfer Özgür , Viktoria Fodor , Carlo Fischione

This paper investigates covert communications in an integrated sensing and communications system, where a dual-functional base station (called Alice) covertly transmits signals to a covert user (called Bob) while sensing multiple targets,…

信息论 · 计算机科学 2024-08-29 Runzhe Tang , Long Yang , Lv Lu , Zheng Zhang , Yuanwei Liu , Jian Chen

In covert communication, Alice tries to communicate with Bob without being detected by a warden Willie. When the distance between Alice and Bob becomes large compared to the distance between Alice and Willie(s), the performance of covert…

网络与互联网体系结构 · 计算机科学 2018-03-13 Azadeh Sheikholeslami , Majid Ghaderi , Don Towsley , Boulat A. Bash , Saikat Guha , Dennis Goeckel

In this paper, we study simultaneous wireless information and power transfer (SWIPT) in orthogonal frequency division multiple access (OFDMA) systems with the coexistence of information receivers (IRs) and energy receivers (ERs). The IRs…

信息论 · 计算机科学 2016-11-17 Meng Zhang , Yuan Liu , Rui Zhang

We characterize time and power allocations to optimize the sum-throughput of a Wireless Powered Communication Network (WPCN) with Non-Orthogonal Multiple Access (NOMA). In our setup, an Energy Rich (ER) source broadcasts wireless energy to…

信息论 · 计算机科学 2017-03-06 Mohamed A. Abd-Elmagid , Alessandro Biason , Tamer ElBatt , Karim G. Seddik , Michele Zorzi

We propose a pilot-data transmission overlay scheme for multipair massive multiple-input multiple-output (MIMO) relaying systems employing either half- or full-duplex (HD or FD) communications at the relay station (RS). In the proposed…

信息论 · 计算机科学 2016-06-06 Leyuan Pan , Yongyu Dai , Wei Xu , Xiaodai Dong

Due to its high communication efficiency, over-the-air computation (AirComp) has been expected to carry out various computing tasks in the next-generation wireless networks. However, up to now, most applications of AirComp are explored in…

信号处理 · 电气工程与系统科学 2023-11-14 Xin Xie , Cunqinq Hua , Jianan Hong , Yuejun Wei

This paper considers artificial noise (AN)-aided transmit designs for multi-user MISO systems in the eyes of service integration. Specifically, we combine two sorts of services, and serve them simultaneously: one multicast message intended…

信息论 · 计算机科学 2017-02-28 Weidong Mei , Zhi Chen , Lingxiang Li , Jun Fang , Shaoqian Li

This paper analyzes the throughput of industrial communication networks under a secrecy constraint. The proposed scenario is composed by sensors that measure some relevant information of the plant that is first processed by aggregator node…

信息论 · 计算机科学 2015-12-18 Pedro H. J. Nardelli , Hirley Alves , Carlos H. M. de Lima , Matti Latva-aho

The integration of intelligent reflecting surface (IRS) into over-the-air computation (AirComp) is an effective solution for reducing the computational mean squared error (MSE) via its high passive beamforming gain. Prior works on IRS aided…

信息论 · 计算机科学 2024-05-10 Guangji Chen , Jun Li , Qingqing Wu , Meng Hua , Kaitao Meng , Zhonghao Lyu

The next-generation wireless networks are envisioned to support large-scale sensing and distributed machine learning, thereby enabling new intelligent mobile applications. One common network operation will be the aggregation of distributed…

信息论 · 计算机科学 2020-01-13 Qiao Lan , Hyo Seung Kang , Kaibin Huang

This paper studies a class of distributed online convex optimization problems for heterogeneous linear multi-agent systems. Agents in a network, knowing only their own outputs, need to minimize the time-varying costs through neighboring…

最优化与控制 · 数学 2023-07-04 Yang Yu , Xiuxian Li , Li Li , Lihua Xie

In distributed detection systems with wireless sensor networks, the communication between sensors and a fusion center is not perfect due to interference and limited transmitter power at the sensors to combat noise at the fusion center's…

信息论 · 计算机科学 2009-11-13 Xin Zhang , H. Vincent Poor , Mung Chiang

In this paper, the multiple-input multiple-output (MIMO) transmit beampattern matching problem is considered. The problem is formulated to approximate a desired transmit beampattern (i.e., an energy distribution in space and frequency) and…

最优化与控制 · 数学 2018-02-21 Ziping Zhao , Daniel P. Palomar

This paper studies a wireless-energy-transfer (WET) enabled massive multiple-input-multiple-output (MIMO) system (MM) consisting of a hybrid data-and-energy access point (H-AP) and multiple single-antenna users. In the WET-MM system, the…

信息论 · 计算机科学 2016-11-18 Gang Yang , Chin Keong Ho , Rui Zhang , Yong Liang Guan

This paper investigates artificial noise injection into the temporal and spatial dimensions of a legitimate wireless communication system to secure its transmissions from potential eavesdropping. We consider a multiple-input single-output…

信息论 · 计算机科学 2017-06-21 Ahmed El Shafie , Zhiguo Ding , Naofal Al-Dhahir

Practical systems often suffer from hardware impairments that already appear during signal generation. Despite the limiting effect of such input-noise impairments on signal processing systems, they are routinely ignored in the literature.…

信号处理 · 电气工程与系统科学 2021-10-04 Ramina Ghods , Charles Jeon , Arian Maleki , Christoph Studer

Over-the-air computation (AirComp), as a data aggregation method that can improve network efficiency by exploiting the superposition characteristics of wireless channels, has received much attention recently. Meanwhile, the orthogonal time…

信息论 · 计算机科学 2024-03-27 Dongkai Zhou , Jing Guo , Siqiang Wang , Zhong Zheng , Zesong Fei , Weijie Yuan , Xinyi Wang