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Massive multiple input and multiple output (MIMO) systems with orthogonal frequency division multiplexing (OFDM) are foundational for downlink multi-user (MU) communication in future wireless networks, for their ability to enhance spectral…

信号处理 · 电气工程与系统科学 2025-07-30 Erdeng Zhang , Shuntian Zheng , Sheng Wu , Haoge Jia , Zhe Ji , Ailing Xiao

Future wireless communication systems are envisioned to share radio frequency (RF) spectrum, with other services such as radars, in order to meet the growing spectrum demands. In this paper, we consider co-channel spectrum sharing between…

信息论 · 计算机科学 2016-11-18 Awais Khawar , Ahmed Abdelhadi , T. Charles Clancy

We investigate a multi-user multiple-input multiple-output interference network in the presence of multiple reconfigurable intelligent surfaces (RISs). The entire system is described by using a circuit-based model for the transmitters,…

信息论 · 计算机科学 2021-02-16 Andrea Abrardo , Davide Dardari , Marco Di Renzo , Xuewen Qian

In this paper, we propose a device to device (D2D) communication scenario underlaying a cellular network where both D2D and cellular users (CUs) are discrete power-rate systems with limited feedback from the receivers. It is assumed that…

信息论 · 计算机科学 2017-08-29 Faezeh Alavi , Nader Mokari , Mohammad R. Javan , Kanapathippillai Cumanan

A spectrum-sharing satellite-ground integrated network is conceived, consisting of a pair of non-geostationary orbit (NGSO) constellations and multiple terrestrial base stations, which impose the co-frequency interference (CFI) on each…

信息论 · 计算机科学 2024-01-31 Xiaojin Ding , Yue Lei , Yulong Zou , Gengxin Zhang , Lajos Hanzo

Spectrum sharing is a new approach to solve the congestion problem in the RF spectrum. A spatial approach for spectrum sharing between a radar and a communication system was proposed, which mitigates the radar interference to communication…

信息论 · 计算机科学 2016-11-17 Awais Khawar , Ahmed Abdelhadi , T. Charles Clancy

We study whether realistic 5G mm-wave cellular networks would cause harmful out-of-band interference to weather satellites sensing in the 23.8 GHz band. We estimate uplink and downlink interference from a single interferer and a network of…

网络与互联网体系结构 · 计算机科学 2022-10-17 Andreea Palade , Andra M. Voicu , Petri Mähönen , Ljiljana Simić

A main challenge in providing connectivity to the low altitude unmanned aerial vehicles (UAVs) through existing cellular network arises due to the increased interference in the network. The increased altitude and favourable propagation…

信息论 · 计算机科学 2019-02-08 Vijaya Yajnanarayana , Y. -P. Eric Wang , Shiwei Gao , Siva Muruganathan , Xingqin Lin

The detection rate for compact binary mergers has grown as the sensitivity of the global network of ground based gravitational wave detectors has improved, now reaching the stage where robust automation of the analyses is essential.…

广义相对论与量子宇宙学 · 物理学 2021-06-02 Neil J. Cornish

In this paper, we present a novel method for a base station (BS) to estimate the total downlink interference power received by any given mobile receiver, without information feedback from the user or information exchange between…

网络与互联网体系结构 · 计算机科学 2016-11-18 Siyi Wang , Weisi Guo , Mark D. McDonnell

In this paper, we propose an algorithm for channel sensing, collaboration, and transmission for networks of Tactical Communication Systems that are facing intrusions from hostile Jammers. Members of the network begin by scanning the…

网络与互联网体系结构 · 计算机科学 2020-03-17 Bryan Gingras , Ali Pourranjbar , Georges Kaddoum

This work considers the problem of quickest detection of signals in a coupled system of $N$ sensors, which receive continuous sequential observations from the environment. It is assumed that the signals, which are modeled by general It\^{o}…

最优化与控制 · 数学 2016-03-11 Hongzhong Zhang , Olympia Hadjiliadis , Tobias Schäfer , H. Vincent Poor

Massive machine-type communications (mMTC) are fundamental to the Internet of Things (IoT) framework in future wireless networks, involving the connection of a vast number of devices with sporadic transmission patterns. Traditional device…

信号处理 · 电气工程与系统科学 2025-10-22 Xinjue Wang , Esa Ollila , Sergiy A. Vorobyov

Global Navigation Satellite Systems (GNSS) are fundamental in ubiquitously providing position and time to a wide gamut of systems. Jamming remains a realistic threat in many deployment settings, civilian and tactical. Specifically, in…

信号处理 · 电气工程与系统科学 2025-03-27 Marco Spanghero , Filip Geib , Ronny Panier , Panos Papadimitratos

In multi-user wireless packet networks interference, typically modeled as packet collision, is the throughput bottleneck. Users become aware of the interference pattern via feedback and use this information for contention resolution and for…

信息论 · 计算机科学 2018-07-24 Alireza Vahid , Robert Calderbank

Intelligent reflecting surface (IRS) is a promising technology for enhancing wireless communication systems. It adaptively configures massive passive reflecting elements to control wireless channel in a desirable way. Due to hardware…

系统与控制 · 电气工程与系统科学 2021-11-04 Rui Sun , Weidong Wang , Li Chen , Guo Wei , Wenyi Zhang

In recent years, satellite communication (SatCom) systems have been widely used for navigation, broadcasting application, disaster recovery, weather sensing, and even spying on the Earth. As the number of satellites is highly increasing and…

信号处理 · 电气工程与系统科学 2022-04-05 Olfa Ben Yahia , Eylem Erdogan , Gunes Karabulut Kurt , Ibrahim Altunbas , Halim Yanikomeroglu

We propose WiPLUS -- a system that enables WiFi to deal with the stealthy invasion of LTE-U into the frequency bands used by WiFi. Using solely MAC layer information extracted passively, during runtime, out of the hardware registers of the…

网络与互联网体系结构 · 计算机科学 2017-02-15 Michael Olbrich , Anatolij Zubow , Sven Zehl , Adam Wolisz

One of the primary challenges in short packet ultra-reliable and low-latency communications (URLLC) is to achieve reliable channel estimation and data detection while minimizing the impact on latency performance. Given the small packet size…

信息论 · 计算机科学 2024-08-27 Canjian Zheng , Fu-Chun Zheng , Jingjing Luo , Pengcheng Zhu , Xiaohu You , Daquan Feng

Spatial-wise dynamic convolution has become a promising approach to improving the inference efficiency of deep networks. By allocating more computation to the most informative pixels, such an adaptive inference paradigm reduces the spatial…

计算机视觉与模式识别 · 计算机科学 2022-10-13 Yizeng Han , Zhihang Yuan , Yifan Pu , Chenhao Xue , Shiji Song , Guangyu Sun , Gao Huang