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相关论文: Information-Theoretic Decentralized Secure Aggrega…

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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

Average consensus is extensively used in distributed networks for computation and control, where all the agents constantly communicate with each other and update their states in order to reach an agreement. Under a general average consensus…

系统与控制 · 电气工程与系统科学 2021-06-17 Xiaomeng Chen , Lingying Huang , Kemi Ding , Subhrakanti Dey , Ling Shi

This paper studies the newly emerging wireless powered communication network (WPCN) in which one hybrid access point (H-AP) with constant power supply coordinates the wireless energy/information transmissions to/from distributed users that…

信息论 · 计算机科学 2014-07-22 Hyunsgsik Ju , Rui Zhang

A multi-level random power transmit strategy that is used in conjunction with a random access protocol (RAP) (e.g. ALOHA, IRSA) is proposed to fundamentally increase the throughput in a distributed communication network. A SIR model is…

信息论 · 计算机科学 2020-10-20 Akshit Kumar , Parikshit Hegde , Rahul Vaze , Amira Alloum , Cédric Adjih

Consider a source and multiple users who observe the independent and identically distributed (i.i.d.) copies of correlated Gaussian random variables. The source wishes to compress its observations and store the result in a public database…

信息论 · 计算机科学 2024-07-31 Hassan ZivariFard , Remi A. Chou

This paper considers the secretive coded caching problem with shared caches in which no user must have access to the files that it did not demand. In a shared cache network, the users are served by a smaller number of helper caches and each…

信息论 · 计算机科学 2021-10-22 Elizabath Peter , K. K. Krishnan Namboodiri , B. Sundar Rajan

Randomized backoff protocols, such as exponential backoff, are a powerful tool for managing access to a shared resource, often a wireless communication channel (e.g., [1]). For a wireless device to transmit successfully, it uses a backoff…

数据结构与算法 · 计算机科学 2022-07-26 Michael A. Bender , Seth Gilbert , Fabian Kuhn , John Kuszmaul , Muriel Médard

In this paper, we present an achievable security scheme for an interference channel with arbitrary number of users. In this model, each receiver should be able to decode its intended message while it cannot decode any meaningful information…

密码学与安全 · 计算机科学 2020-04-20 Parisa Babaheidarian , Somayeh Salimi , Panos Papadimitratos

Cooperative decentralized learning relies on direct information exchange between communicating agents, each with access to locally available datasets. The goal is to agree on model parameters that are optimal over all data. However, sharing…

机器学习 · 计算机科学 2024-10-28 Jasmine Bayrooti , Zhan Gao , Amanda Prorok

We consider unreliable distributed learning systems wherein the training data is kept confidential by external workers, and the learner has to interact closely with those workers to train a model. In particular, we assume that there exists…

分布式、并行与集群计算 · 计算机科学 2019-05-10 Lili Su , Jiaming Xu

Decentralized learning algorithms empower interconnected devices to share data and computational resources to collaboratively train a machine learning model without the aid of a central coordinator. In the case of heterogeneous data…

机器学习 · 计算机科学 2023-01-16 Matteo Zecchin , Marios Kountouris , David Gesbert

We establish a multi-user extrinsic information transfer (EXIT) chart area theorem for the interleave-division multiple-access (IDMA) scheme, a special form of superposition coding, in multiple access channels (MACs). A low-cost multi-user…

信息论 · 计算机科学 2019-07-24 Xiaojie Wang , Chulong Liang , Li Ping , Stephan ten Brink

We present a distributed average consensus protocol that preserves the privacy of agents' inputs. Unlike the differential privacy mechanisms, the presented protocol does not affect the accuracy of the output. It is shown that the protocol…

系统与控制 · 计算机科学 2020-04-14 Nirupam Gupta , Jonathan Katz , Nikhil Chopra

In this paper, we investigate a joint device activity detection (DAD), channel estimation (CE), and data decoding (DD) algorithm for multiple-input multiple-output (MIMO) massive unsourced random access (URA). Different from the…

This paper investigates a novel unmanned aerial vehicles (UAVs) secure communication system with the assistance of reconfigurable intelligent surfaces (RISs), where an UAV and a ground user communicate with each other, while an eavesdropper…

信息论 · 计算机科学 2021-04-29 Li Sixian , Duo Bin , Marco Di Renzo , Tao Meixia , Yuan Xiaojun

Recent trend towards cloud computing paradigm, smart devices and 4G wireless technologies has enabled seamless data sharing among users. Cloud computing environment is distributed and untrusted, hence data owners have to encrypt their data…

密码学与安全 · 计算机科学 2016-02-04 Yogachandran Rahulamathavan

We establish a multiuser extrinsic information transfer (EXIT) chart area theorem for the interleave-division multiple access (IDMA) scheme, a special form of superposition coding, in multiple access channels (MACs). A low-cost multi-user…

信息论 · 计算机科学 2019-07-29 Xiaojie Wang , Chulong Liang , Li Ping , Stephan ten Brink

Unsourced random-access (U-RA) is a type of grant-free random access with a virtually unlimited number of users, of which only a certain number $K_a$ are active on the same time slot. Users employ exactly the same codebook, and the task of…

信息论 · 计算机科学 2021-12-10 Alexander Fengler , Peter Jung , Giuseppe Caire

The high bandwidth demand of Internet applications has recently driven the need of increasing the residential download speed. A practical solution to the problem has been proposed aggregating the bandwidth of 802.11 Access Points (APs)…

网络与互联网体系结构 · 计算机科学 2013-04-04 Domenico Giustiniano , Eduard Goma , Alberto Lopez Toledo , George Athanasiou

This paper focuses on achieving optimal multi-user channel access in distributed networks using a reconfigurable intelligent surface (RIS). The network includes wireless channels with direct links between users and RIS links connecting…

信息论 · 计算机科学 2023-09-25 Zhou Zhang , Saman Atapattu , Yizhu Wang , Marco Di Renzo