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相关论文: Stochastic Coded Caching with Optimized Shared-Cac…

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Caching is a commonly used technique in content-delivery networks which aims to deliver information from hosting servers to users in the most efficient way. In 2014, Maddah-Ali and Niessen formulated caching into a formal information…

信息论 · 计算机科学 2020-02-27 Tai Do Duc , Shuo Shao , Chaoping Xing

Caching is an efficient way to reduce network traffic congestion during peak hours, by storing some content at the user's local cache memory, even without knowledge of user's later demands. Maddah-Ali and Niesen proposed a two-phase…

信息论 · 计算机科学 2020-01-15 Kai Wan , Daniela Tuninetti , Pablo Piantanida

We address a centralized caching problem with unequal cache sizes. We consider a system with a server of files connected through a shared error-free link to a group of cache-enabled users where one subgroup has a larger cache size than the…

信息论 · 计算机科学 2018-05-16 Behzad Asadi , Lawrence Ong , Sarah J. Johnson

This paper considers the multiaccess coded caching systems formulated by Hachem et al., including a central server containing $N$ files connected to $K$ cache-less users through an error-free shared link, and $K$ cache-nodes, each equipped…

信息论 · 计算机科学 2021-06-08 Minquan Cheng , Kai Wan , Dequan Liang , Mingming Zhang , Giuseppe Caire

This paper presents a new achievable scheme for the K-user Linear Computation Broadcast Channel (K-LCBC). A K-LCBC comprises data stored on a server and K users, each aiming to retrieve a desired linear function of the data by leveraging…

信息论 · 计算机科学 2025-04-30 Yinbin Ma , Daniela Tuninetti

Coded-caching is a promising technique to reduce the peak rate requirement of backhaul links during high traffic periods. In this letter, we study the effect of adaptive transmission on the performance of coded-caching based networks.…

信息论 · 计算机科学 2021-03-15 Behrooz Makki , Mohamed-Slim Alouini

The coded caching scheme proposed by Maddah-Ali and Niesen (MAN) transmits coded multicast messages to users equipped with caches and it is known to be optimal within a constant factor. This work extends this caching scheme to two-hop relay…

信息论 · 计算机科学 2019-03-15 Mozhgan Bayat , Kai Wan , Giuseppe Caire

Caching of popular content during off-peak hours is a strategy to reduce network loads during peak hours. Recent work has shown significant benefits of designing such caching strategies not only to deliver part of the content locally, but…

信息论 · 计算机科学 2016-06-14 Nikhil Karamchandani , Urs Niesen , Mohammad Ali Maddah-Ali , Suhas Diggavi

In this work, we study the trade-off between the cache capacity and the user delay for a cooperative Small Base Station (SBS) coded caching system with mobile users. First, a delay-aware coded caching policy, which takes into account the…

信息论 · 计算机科学 2018-11-29 Emre Ozfatura , Thomas Rarris , Deniz Gunduz , Ozgur Ercetin

Over the past decade, the bulk of wireless traffic has shifted from speech to content. This shift creates the opportunity to cache part of the content in memories closer to the end users, for example in base stations. Most of the prior…

信息论 · 计算机科学 2019-02-18 Mohammad Ali Maddah-Ali , Urs Niesen

We consider the content delivery problem in a fading multi-input single-output channel with cache-aided users. We are interested in the scalability of the equivalent content delivery rate when the number of users, $K$, is large. Analytical…

信息论 · 计算机科学 2020-06-05 Khac-Hoang Ngo , Sheng Yang , Mari Kobayashi

The performance of existing \emph{coded caching} schemes is sensitive to worst channel quality, a problem which is exacerbated when communicating over fading channels. In this paper we address this limitation in the following manner:…

信息论 · 计算机科学 2017-01-27 Apostolos Destounis , Mari Kobayashi , Georgios Paschos , Asma Ghorbel

This paper studies the fundamental limits of content delivery in a cache-aided broadcast network for correlated content generated by a discrete memoryless source with arbitrary joint distribution. Each receiver is equipped with a cache of…

信息论 · 计算机科学 2018-06-20 Parisa Hassanzadeh , Antonia M. Tulino , Jaime Llorca , Elza Erkip

Efficient usage of in-device storage and computation capabilities are key solutions to support data-intensive applications such as immersive digital experiences. This paper proposes a location-dependent multi-antenna coded caching -based…

信息论 · 计算机科学 2023-02-17 Hamidreza Bakhshzad Mahmoodi , MohammadJavad Salehi , Antti Tölli

It has been recently established that joint design of content delivery and storage (coded caching) can significantly improve performance over conventional caching. This has also been extended to the case when content has non-uniform…

信息论 · 计算机科学 2016-11-17 Jad Hachem , Nikhil Karamchandani , Suhas Diggavi

We focus on a dense cellular network, in which a limited-size cache is available at every Base Station (BS). In order to optimize the overall performance of the system in such scenario, where a significant fraction of the users is covered…

网络与互联网体系结构 · 计算机科学 2018-06-15 Emilio Leonardi , Giovanni Neglia

We study the problem of cache-aided communication for cellular networks with multi-user and multiple antennas at finite signal-to-noise ratio. Users are assumed to have non-symmetric links, modeled by wideband fading channels. We show that…

信息论 · 计算机科学 2018-08-09 Itsik Bergel , Soheil Mohajer

In the context of coded caching in the $K$-user BC, our work reveals the surprising fact that having multiple ($L$) transmitting antennas, dramatically ameliorates the long-standing subpacketization bottleneck of coded caching by reducing…

信息论 · 计算机科学 2018-02-12 Eleftherios Lampiris , Petros Elia

Caching at the network edge has emerged as a viable solution for alleviating the severe capacity crunch in modern content centric wireless networks by leveraging network load-balancing in the form of localized content storage and delivery.…

信息论 · 计算机科学 2016-06-15 Avik Sengupta , Ravi Tandon

Caching at mobile devices and leveraging device-to-device (D2D) communication are two promising approaches to support massive content delivery over wireless networks. The analysis of such D2D caching networks based on a physical…

信号处理 · 电气工程与系统科学 2018-10-15 Ramy Amer , Hesham Elsawy , M. Majid Butt , Eduard A. Jorswieck , Mehdi Bennis , Nicola Marchetti