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The capacity of caching networks has received considerable attention in the past few years. A particularly studied setting is the case of a single server (e.g., a base station) and multiple users, each of which caches segments of files in a…

信息论 · 计算机科学 2014-10-30 Mingyue Ji , Antonia M. Tulino , Jaime Llorca , Giuseppe Caire

Multi-User Detection is fundamental not only to cellular wireless communication but also to Radio-Frequency Identification (RFID) technology that supports supply chain management. The challenge of Multi-user Detection (MUD) is that of…

信息论 · 计算机科学 2013-03-19 Yuejie Chi , Yao Xie , Robert Calderbank

This paper presents strategies for enhancing the robustness of bidirectional quantum teleportation (BQT) through environment-assisted and weak measurement techniques. BQT is a crucial component of distributed quantum networks, allowing for…

量子物理 · 物理学 2025-08-01 Javid Ahmad Malik , Muzaffar Qadir Lone , Prince A Ganai

Modern wireless machine-to-machine-type communications aim to provide both ultra reliability and low latency, stringent requirements that appear to be mutually exclusive. From the noisy channel coding theorem, we know that reliable…

信息论 · 计算机科学 2020-12-04 Diego Barragán Guerrero , Minh Au , Ghyslain Gagnon , François Gagnon , Pascal Giard

In this paper, assuming multi-antenna transmitter and receivers, we consider multicast beamformer design for the weighted max-min-fairness (WMMF) problem in a multi-stream multi-group communication setup. Unlike the single-stream scenario,…

信息论 · 计算机科学 2021-05-21 Hamidreza Bakhshzad Mahmoodi , Bikshapathi Gouda , MohammadJavad Salehi , Antti Tolli

Providing connectivity to a massive number of devices is a key challenge in 5G wireless systems. In particular, it is crucial to develop efficient methods for active device identification and message decoding in a multi-cell network with…

信息论 · 计算机科学 2021-09-30 Pei Yang , Dongning Guo , Hongwen Yang

A set of identical, mobile agents is deployed in a weighted network. Each agent has a battery -- a power source allowing it to move along network edges. An agent uses its battery proportionally to the distance traveled. We consider two…

分布式、并行与集群计算 · 计算机科学 2016-03-15 Julian Anaya , Jérémie Chalopin , Jurek Czyzowicz , Arnaud Labourel , Andrzej Pelc , Yann Vaxès

A class of Adaptive Decoders (AD's) for coherent-state sequences is studied, including in particular the most common technology for optical-signal processing, e.g., interferometers, coherent displacements and photon-counting detectors. More…

量子物理 · 物理学 2017-07-19 Matteo Rosati , Andrea Mari , Vittorio Giovannetti

In the practical network communications, many internal nodes in the network are required to not only transmit messages but decode source messages. For different applications, four important classes of linear network codes in network coding…

信息论 · 计算机科学 2013-12-02 Xuan Guang , Fang-Wei Fu

Quantum communication has been leading the way of many remarkable theoretical results and experimental tests in physics. In this context, quantum communication complexity (QCC) has recently drawn earnest research attention as a tool to…

量子物理 · 物理学 2020-11-11 Hipólito Gómez-Sousa

For every p in (0,1/2), we give an explicit construction of binary codes of rate approaching "capacity" 1-H(p) that enable reliable communication in the presence of worst-case additive errors}, caused by a channel oblivious to the codeword…

信息论 · 计算机科学 2010-05-04 Venkatesan Guruswami , Adam Smith

Establishing and maintaining a common time reference across spatially separated devices is a prerequisite for networked quantum experiments and secure communications. Classical two-way timing protocols such as Network Time Protocol (NTP) or…

量子物理 · 物理学 2025-10-02 Noah Crum , Md Mehdi Hassan , George Siopsis

In this paper, we study covert communications between {a pair of} legitimate transmitter-receiver against a watchful warden over slow fading channels. There coexist multiple friendly helper nodes who are willing to protect the covert…

信息论 · 计算机科学 2021-05-13 Tong-Xing Zheng , Ziteng Yang , Chao Wang , Zan Li , Jinhong Yuan , Xiaohong Guan

Maddah-Ali and Niesen's original coded caching scheme for shared-link broadcast networks is now known to be optimal to within a factor two, and has been applied to other types of networks. For practical reasons, this paper considers that a…

信息论 · 计算机科学 2018-04-06 Kai Wan , Mingyue Ji , Pablo Piantanida , Daniela Tuninetti

This paper addresses the consensus problem in homonymous distributed systems where processes are prone to crash failures and have no initial knowledge of the system membership ("homonymous" means that several processes may have the same…

分布式、并行与集群计算 · 计算机科学 2011-11-29 Sergio Arévalo , Antonio Fernández Anta , Damien Imbs , Ernesto Jiménez , Michel Raynal

A key challenge in Molecular Communications (MC) is low data transmission rates, which can be addressed by channel multiplexing techniques. One way to achieve channel multiplexing in MC is to leverage the diversity of different molecule…

新兴技术 · 计算机科学 2023-05-03 Ahmet R. Emirdagi , M. Serkan Kopuzlu , M. Okan Araz , Murat Kuscu

Multi-armed adversarial attacks, in which multiple algorithms and objective loss functions are simultaneously used at evaluation time, have been shown to be highly successful in fooling state-of-the-art adversarial examples detectors while…

计算机视觉与模式识别 · 计算机科学 2023-02-07 Federica Granese , Marco Romanelli , Siddharth Garg , Pablo Piantanida

Convergence of classical parallel iterations is detected by performing a reduction operation at each iteration in order to compute a residual error relative to a potential solution vector. To efficiently run asynchronous iterations,…

分布式、并行与集群计算 · 计算机科学 2024-01-01 Frédéric Magoulès , Guillaume Gbikpi-Benissan

We present a novel and simple solution to Atomic Broadcast (AB). We reduce AB to two subproblems. One of them is Reliable Broadcast (RB). We also introduce a subproblem we call Weakly-terminating Binary Agreement (WBA). WBA relaxes Binary…

分布式、并行与集群计算 · 计算机科学 2022-05-16 Andreas Fackler , Samuel Schlesinger , Matthew Doty

The paper studies the scenario of wireless multicast with a single transmitter and a relay that deliver scalable source symbols to the receivers in a decode-and-forward (DF) fashion. With the end-to-end mean square error distortion (EED) as…

信息论 · 计算机科学 2017-09-05 Z. Chen , P. Ho , L. Peng