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相关论文: Multi-access Coded Caching Schemes From Cross Reso…

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Coded caching is an efficient way to reduce network traffic congestion during peak hours by storing some content at the user's local cache memory without knowledge of later demands. The goal of coded caching design is to minimize the…

信息论 · 计算机科学 2020-05-05 Minquan Cheng , Dequan Liang , Ruizhong Wei

We consider the cache-aided multiple-input single-output (MISO) broadcast channel, which consists of a server with $L$ antennas and $K$ single-antenna users, where the server contains $N$ files of equal length and each user is equipped with…

信息论 · 计算机科学 2022-03-04 Ting Yang , Kai Wan , Minquan Cheng , Giuseppe Caire

This paper studies the caching system of multiple cache-enabled users with random demands. Under nonuniform file popularity, we thoroughly characterize the optimal uncoded cache placement structure for the coded caching scheme (CCS).…

信息论 · 计算机科学 2022-07-28 Yong Deng , Min Dong

A multi-antenna broadcast channel scenario is considered where a base station delivers contents to cache-enabled user terminals. A joint design of coded caching (CC) and multigroup multicast beamforming is proposed to benefit from spatial…

信息论 · 计算机科学 2020-01-03 Antti Tölli , Seyed Pooya Shariatpanahi , Jarkko Kaleva , Babak Khalaj

The next generation multibeam satellites open up a new way to design satellite communication channels with the full flexibility in bandwidth, transmit power and beam coverage management. In this paper, we exploit the flexible multibeam…

信息论 · 计算机科学 2022-01-25 Thang X. Vu , Nicola Maturo , Symeon Chatzinotas , Joel Grotz , Tom Christophory , Björn Ottersten

We investigate the potentials of applying the coded caching paradigm in wireless networks. In order to do this, we investigate physical layer schemes for downlink transmission from a multiantenna transmitter to several cache-enabled users.…

信息论 · 计算机科学 2018-01-30 Seyed Pooya Shariatpanahi , Giuseppe Caire , Babak Hossein Khalaj

Coded caching (CC) can substantially enhance network performance by leveraging memory as an additional communication resource. However, the use of CC is challenging in various practical applications due to dynamic user behavior. The…

信息论 · 计算机科学 2024-05-07 Milad Abolpour , MohammadJavad Salehi , Antti Tölli

We consider the problem of cache-aided multi-user private information retrieval (MuPIR). In this problem, $N$ independent files are replicated across $S \geq 2$ non-colluding servers. There are $K$ users, each equipped with cache memory…

信息论 · 计算机科学 2022-12-27 Kanishak Vaidya , B Sundar Rajan

Replicating or caching popular content in memories distributed across the network is a technique to reduce peak network loads. Conventionally, the main performance gain of this caching was thought to result from making part of the requested…

信息论 · 计算机科学 2015-09-08 Mohammad Ali Maddah-Ali , Urs Niesen

In this paper we consider a single-cell downlink scenario where a multiple-antenna base station delivers contents to multiple cache-enabled user terminals. Based on the multicasting opportunities provided by the so-called Coded Caching…

信息论 · 计算机科学 2017-01-12 Seyed Pooya Shariatpanahi , Giuseppe Caire , Babak Hossein Khalaj

Peer-to-peer distributed storage systems provide reliable access to data through redundancy spread over nodes across the Internet. A key goal is to minimize the amount of bandwidth used to maintain that redundancy. Storing a file using an…

Coded caching systems have been widely studied to reduce the data transmission during the peak traffic time. In practice, two important parameters of a coded caching system should be considered, i.e., the rate which is the maximum amount of…

信息论 · 计算机科学 2018-10-18 Minquan Cheng , Jie Li , Xiaohu Tang , Ruizhong Wei

The work by Maddah-Ali and Niesen demonstrated the benefits in reducing the transmission rate in a noiseless broadcast network by joint design of caching and delivery schemes. In their setup, each user learns the demands of all other users…

信息论 · 计算机科学 2019-09-10 Sneha Kamath

In this paper, we propose a novel joint caching and massive multiple-input multiple-output (MIMO) transmission scheme, referred to as \emph{cache-aided massive MIMO}, for multi-cell downlink transmission to multiple cache-enabled receivers.…

信息论 · 计算机科学 2022-04-12 Lin Xiang , Xiao Wei , Laura Cottatellucci , Robert Schober , Tao Jiang

This paper considers a two-hop network architecture known as a combination network, where a layer of relay nodes connects a server to a set of end users. In particular, a new model is investigated where the intermediate relays employ caches…

信息论 · 计算机科学 2017-12-14 Ahmed A. Zewail , Aylin Yener

In this work, a distributed server system composed of multiple servers that holds some coded files and multiple users that are interested in retrieving the linear functions of the files is investigated, where the servers are robust, blind…

信息论 · 计算机科学 2024-07-25 Qifa Yan , Xiaohu Tang , Zhengchun Zhou

We consider the problem of multi-access cache-aided multi-user Private Information Retrieval (MuPIR). In this problem, several files are replicated across multiple servers. There are $K$ users and $C$ cache nodes. Each user can access $L$…

信息论 · 计算机科学 2022-02-11 Kanishak Vaidya , B Sundar Rajan

The correlation among the content distributed across a cache-aided broadcast network can be exploited to reduce the delivery load on the shared wireless link. This paper considers a two-user three-file network with correlated content, and…

信息论 · 计算机科学 2017-12-06 Parisa Hassanzadeh , Antonia M. Tulino , Jaime Llorca , Elza Erkip

We consider coded caching over the fading broadcast channel, where the users, equipped with a memory of finite size, experience asymmetric fading statistics. It is known that a naive application of coded caching over the channel at hand…

信息论 · 计算机科学 2018-01-16 Richard Combes , Asma Ghorbel , Mari Kobayashi , Sheng Yang

Multiple applications executing concurrently on a multicore system interfere with each other at different shared resources such as main memory and shared caches. Such inter-application interference, if uncontrolled, results in high system…

分布式、并行与集群计算 · 计算机科学 2015-08-14 Lavanya Subramanian
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