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This paper studies the simultaneous wireless information and power transfer (SWIPT) in a multiuser wireless system, in which distributed transmitters send independent messages to their respective receivers, and at the same time…

信息论 · 计算机科学 2016-11-18 Seunghyun Lee , Liang Liu , Rui Zhang

This paper analyzes the performance of linearly precoded time division duplex based multi-user massive MIMO downlink system under joint impacts of channel non-reciprocity (NRC) and imperfect channel state information (CSI). We consider a…

信息论 · 计算机科学 2018-03-06 Orod Raeesi , Ahmet Gokceoglu , Yaning Zou , Emil Björnson , Mikko Valkama

Infrastructure-less Multi-hop Wireless Networks are the backbone for mission critical communications such as in disaster and battlefield scenarios. However, interference signals in the wireless channel cause losses to transmission in…

网络与互联网体系结构 · 计算机科学 2024-11-25 Muhammad Ali , Alister Burr

The performance of simultaneous wireless information and power transfer (SWIPT) in downlink (DL) cell-free massive multiple-input multiple-output (MIMO) is investigated. Tight approximations to the DL harvested energy and the DL/uplink (UL)…

信号处理 · 电气工程与系统科学 2020-11-17 Diluka Loku Galappaththige , Rajan Shrestha , Gayan Amarasuriya Aruma Baduge

The limited spectrum resources and dramatic growth of high data rate communications have motivated opportunistic spectrum access using the promising concept of cognitive radio networks. Although this concept has emerged primarily to enhance…

网络与互联网体系结构 · 计算机科学 2013-12-03 Hossein Shokri-Ghadikolaei , Ioannis Glaropoulos , Viktoria Fodor , Carlo Fischione , Konstantinos Dimou

Energy efficiency and transmission delay are very important parameters for wireless multi-hop networks. Previous works that study energy efficiency and delay are based on the assumption of reliable links. However, the unreliability of the…

网络与互联网体系结构 · 计算机科学 2008-07-30 Ruifeng Zhang , Jean-Marie Gorce , Katia Jaffrès-Runser

Limited spectrum resources and dramatic growth of high data rate applications have motivated opportunistic spectrum access utilizing the promising concept of cognitive networks. Although this concept has emerged primarily to enhance…

Energy-efficiency, high data rates and secure communications are essential requirements of the future wireless networks. In this paper, optimizing the secrecy energy efficiency is considered. The optimal beamformer is designed for a MISO…

信息论 · 计算机科学 2016-11-15 Ashkan Kalantari , Sina Maleki , Symeon Chatzinotas , Björn Ottersten

This paper studies user cooperation in the emerging wireless powered communication network (WPCN) for throughput optimization. For the purpose of exposition, we consider a two-user WPCN, in which one hybrid access point (H-AP) broadcasts…

信息论 · 计算机科学 2014-04-08 Hyungsik Ju , Rui Zhang

For wireless systems in which randomly arriving devices attempt to transmit a fixed payload to a central receiver, we develop a framework to characterize the system throughput as a function of arrival rate and per-user data rate. The…

信息论 · 计算机科学 2013-10-04 Harpreet S. Dhillon , Howard C. Huang , Harish Viswanathan , Reinaldo A. Valenzuela

We derive the probability distribution of the link outage duration at a typical receiver in a wireless network with Poisson distributed interferers sending messages with slotted random access over a Rayleigh fading channel. This result is…

信息论 · 计算机科学 2019-11-27 Udo Schilcher , Siddhartha Borkotoky , Jorge F. Schmidt , Christian Bettstetter

We consider the problem of cross-layer resource allocation in time-varying cellular wireless networks, and incorporate information theoretic secrecy as a Quality of Service constraint. Specifically, each node in the network injects two…

信息论 · 计算机科学 2015-03-17 C. Emre Koksal , Ozgur Ercetin , Yunus Sarikaya

This paper considers a random access system where each sender can be in two modes of operation, active or not active, and where the set of active users is available to a common receiver only. Active transmitters encode data into independent…

信息论 · 计算机科学 2016-11-18 Paolo Minero , Massimo Franceschetti , David N. C. Tse

This paper considers secure communication in a multiuser multiple-input single-output (MISO) downlink system with simultaneous wireless information and power transfer. We study the design of resource allocation algorithms minimizing the…

信息论 · 计算机科学 2013-06-05 Derrick Wing Kwan Ng , Robert Schober

This work considers the problem of integrated sensing and communications (ISAC) with a massive number of unsourced and uncoordinated users. In the proposed model, known as the unsourced ISAC system (UNISAC), all active communication and…

信息论 · 计算机科学 2026-04-21 Mohammad Javad Ahmadi , Rafael F. Schaefer , H. Vincent Poor

This paper investigates simultaneous wireless information and power transfer (SWIPT) for multiuser multiple-input-single-output (MISO) secrecy channel. First, transmit beamfoming without artificial noise (AN) design is considered, where two…

信息论 · 计算机科学 2015-03-24 Zheng Chu , Martin Johnston , Stephane Le Goff

Future wireless networks are expected to adopt many different network technologies and architectures that promise to greatly enhance data rate and provide ubiquitous coverage for end users, all while enabling higher spectral efficiency.…

信息论 · 计算机科学 2018-07-23 S. Talarico , M. C. Valenti , M. Di Renzo

The study of relays with the scope of energy-harvesting (EH) looks interesting as a means of enabling sustainable, wireless communication without the need to recharge or replace the battery driving the relays. However, reliability of such…

网络与互联网体系结构 · 计算机科学 2017-05-02 Sutanu Ghosh , Tamaghna Acharya , Santi P. Maity

An intuitive overview of the scalability of a variety of types of wireless networks is presented. Simple heuris- tic arguments are demonstrated here for scaling laws presented in other works, as well as for conditions not previously…

信息论 · 计算机科学 2016-11-26 Linda Zeger , Muriel Médard

In this paper, we provide the model of the multilayer aerial network (MAN), composed unmanned aerial vehicles (UAVs) that distributed in Poisson point process (PPP) with different densities, heights, and transmission power. In our model, we…

信号处理 · 电气工程与系统科学 2018-07-18 Dongsun Kim , Jemin Lee , Tony Q. S. Quek
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