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There has been an exponential increase in the usage of multimedia services in mobile networks in recent years. To address this accelerating data demand, mobile networks are experiencing a subtle transformation in their architecture. One of…

网络与互联网体系结构 · 计算机科学 2024-01-03 Rashmi Yadav , Rashmi Kamran , Pranav Jha , Abhay Karandikar

Localizing ground devices (GDs) is an important requirement for a wide variety of applications, such as infrastructure monitoring, precision agriculture, search and rescue operations, to name a few. To this end, unmanned aerial vehicles…

信号处理 · 电气工程与系统科学 2020-12-17 Francesco Betti Sorbelli , Cristina M. Pinotti , Simone Silvestri , Sajal K. Das

Face presentation attacks (FPA), also known as face spoofing, have brought increasing concerns to the public through various malicious applications, such as financial fraud and privacy leakage. Therefore, safeguarding face recognition…

多媒体 · 计算机科学 2024-03-22 Chenqi Kong , Kexin Zheng , Yibing Liu , Shiqi Wang , Anderson Rocha , Haoliang Li

In this paper a novel system for detecting meaningful deviations in a mobile application's network behavior is proposed. The main goal of the proposed system is to protect mobile device users and cellular infrastructure companies from…

密码学与安全 · 计算机科学 2012-08-07 L. Chekina , D. Mimran , L. Rokach , Y. Elovici , B. Shapira

We propose a new radio resource management algorithm which aims at minimizing the base station supply power consumption for multi-user MIMO-OFDM. Given a base station power model that establishes a relation between the RF transmit power and…

信息论 · 计算机科学 2013-07-12 Hauke Holtkamp , Gunther Auer , Samer Bazzi , Harald Haas

Overcoming the conventional trade-off between throughput and bit error rate (BER) performance, versus computational complexity is a long-term challenge for uplink Multiple-Input Multiple-Output (MIMO) detection in base station design for…

网络与互联网体系结构 · 计算机科学 2021-03-22 Minsung Kim , Salvatore Mandrà , Davide Venturelli , Kyle Jamieson

Increasing numbers of mobile computing devices, user-portable, or embedded in vehicles, cargo containers, or the physical space, need to be aware of their location in order to provide a wide range of commercial services. Most often, mobile…

密码学与安全 · 计算机科学 2010-01-05 P. Papadimitratos , A. Jovanovic

This study proposes a multi-radar system for non-contact physiological sensing across arbitrary body orientations. In integrating signals obtained from different radar viewpoints, we adopt a multivariate variational mode decomposition…

信号处理 · 电气工程与系统科学 2025-10-14 Kimitaka Sumi , Takuya Sakamoto

This paper presents an experimental measurement platform for the research and development of unmanned aerial vehicles (UAVs) localization algorithms using radio emission and reflectivity. We propose a cost-effective, flexible testbed made…

This paper characterizes the performance of massive multiuser spatial modulation MIMO systems, when a regularized form of the least-squares method is used for detection. For a generic distortion function and right unitarily invariant…

信息论 · 计算机科学 2020-11-18 Ali Bereyhi , Saba Asaad , Bernhard Gäde , Ralf R. Müller , H. Vincent Poor

Mobile wireless sensors are increasingly recognized as a valuable tool for monitoring critical infrastructures. An important use case is the discovery of leaks and inflows in pipe networks using a swarm of floating sensor nodes. While…

多智能体系统 · 计算机科学 2021-09-02 Martin Haug , Felix Lorenz , Lauritz Thamsen

The deployment of aerial base stations (ABSs) on unmanned aerial vehicles (UAVs) presents a promising solution for extending cellular connectivity to areas where terrestrial infrastructure is overloaded, damaged, or absent. A pivotal…

最优化与控制 · 数学 2024-04-12 Daniel Romero , Pham Q. Viet , Raju Shrestha

Given the critical dependence of broadcast channels by the accuracy of channel state information at the transmitter (CSIT), we develop a general downlink model with zero-forcing (ZF) precoding, applied in realistic heterogeneous cellular…

信息论 · 计算机科学 2017-06-19 Anastasios Papazafeiropoulos , Tharm Ratnarajah

This study proposes a method for simulating signals received by frequency-modulated continuous-wave radar during respiratory monitoring, using human body geometry and displacement data acquired via a depth camera. Unlike previous studies…

信号处理 · 电气工程与系统科学 2025-07-21 Kimitaka Sumi , Takuya Sakamoto

A multiuser multiple-input multiple-output wireless communication system is analytically studied under the short-packet transmission regime. The practical scenario of channel estimation errors is adopted when the signals undergo Rayleigh…

信息论 · 计算机科学 2019-03-19 Nikolaos I. Miridakis , Theodoros A. Tsiftsis , Hui-Ming Wang

This paper studies initial beam acquisition in a millimeter wave network consisting of multiple access points (APs) and mobile devices. A training protocol for joint estimation of transmit and receive beams is presented with a general frame…

信号处理 · 电气工程与系统科学 2019-10-14 Hao Zhou , Dongning Guo , Michael L. Honig

The problem of mobile position estimation in multipath scenarios is addressed. A low-complexity, fully-adaptive algorithm is proposed, based on the pseudo maximum likelihood approach. The processing is done exclusively on-board at the…

信号处理 · 电气工程与系统科学 2019-02-12 Alessio Fascista , Angelo Coluccia , Giuseppe Ricci

One of the trends that is gaining more and more importance in the field of beyond-5G and 6G wireless communication systems is the investigation on systems that jointly perform communication and sensing of the environment. This paper…

信息论 · 计算机科学 2019-12-03 Stefano Buzzi , Carmen D'Andrea , Marco Lops

In signals of opportunity (SOPs)-based positioning utilizing low Earth orbit (LEO) satellites, ephemeris data derived from two-line element files can introduce increasing error over time. To handle the erroneous measurement, an additional…

信息论 · 计算机科学 2024-09-10 Md. Ali Hasan , M. Humayun Kabir , Md. Shafiqul Islam , Sangmin Han , Wonjae Shin

Powered by the advances in microelectronics technologies, unmanned aerial vehicles (UAVs) provide a vast variety of services ranging from surveillance to delivery in both military and civilian domains. It is clear that a successful…

信号处理 · 电气工程与系统科学 2020-03-10 Burak Ede , Serhan Yarkan , Ali Rıza Ekti , Tunçer Baykaş , Hakan Ali Çırpan , Ali Görçin
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