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For a network with one sender, $n$ receivers (users) and $m$ possible messages (files), caching side information at the users allows to satisfy arbitrary simultaneous demands by sending a common (multicast) coded message. In the worst-case…

信息论 · 计算机科学 2014-07-04 Mingyue Ji , Antonia M. Tulino , Jaime Llorca , Giuseppe Caire

This paper investigates the coded caching problem in a multi-access multiple-input single-output (MAMISO) network with the combinatorial topology. The considered system consists of a server containing $N$ files, $\Lambda$ cache nodes, and…

信息论 · 计算机科学 2026-01-19 Siying Luo , Youlong Wu , Mingming Zhang , Minquan Cheng , Dianhua Wu

This paper investigates the fundamental tradeoff between cache size and download time in the (H;r;M;N) combination network, where a server with N files is connected to H relays (without caches) and each of the K:=\binom{H}{r} users (with…

信息论 · 计算机科学 2018-03-01 Kai Wan , Mingyue Ji , Pablo Piantanida , Daniela Tuninetti

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

This work investigates the problem of cache-aided content Secure and demand Private Linear Function Retrieval (SP-LFR), where three constraints are imposed on the system:(a) each user is interested in retrieving an arbitrary linear…

信息论 · 计算机科学 2021-08-24 Qifa Yan , Daniela Tuninetti

Multi-access coded caching schemes from cross resolvable designs (CRD) have been reported recently \cite{KNRarXiv}. To be able to compare coded caching schemes with different number of users and possibly with different number of caches a…

信息论 · 计算机科学 2021-02-02 Pooja Nayak Muralidhar , B. Sundar Rajan

Linear nested codes, where two or more sub-codes are nested in a global code, have been proposed as candidates for reliable multi-terminal communication. In this paper, we consider nested array-based spatially coupled low-density…

信息论 · 计算机科学 2021-02-23 Salman Habib , David G. M. Mitchell , Joerg Kliewer

Coded caching utilizes pre-fetching during off-peak hours and multi-casting for delivery in order to balance the traffic load in communication networks. Several works have studied the achievable peak and average rates under different…

信息论 · 计算机科学 2022-01-27 Ciyuan Zhang , Su Wang , Vaneet Aggarwal , Borja Peleato

Coded caching was introduced as a technique of systematically exploiting locally available storage at the clients to increase the channel throughput via coded transmissions. Most known coded caching schemes in literature enable large gains…

信息论 · 计算机科学 2019-03-08 Hari Hara Suthan Chittoor , Prasad Krishnan

Caching in multi-cell networks faces a well-known dilemma, i.e., to cache same contents among multiple edge nodes (ENs) to enable transmission cooperation/diversity for higher transmission efficiency, or to cache different contents to…

信息论 · 计算机科学 2018-02-21 Kangqi Liu , Meixia Tao

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

Next-generation mobile networks are expected to facilitate fast AI model downloading to end users. By caching models on edge servers, mobile networks can deliver models to end users with low latency, resulting in a paradigm of edge model…

网络与互联网体系结构 · 计算机科学 2026-05-21 Guanqiao Qu , Zheng Lin , Qian Chen , Jian Li , Fangming Liu , Xianhao Chen , Kaibin Huang

In this paper, we consider a multi-access coded caching system with decentralized prefetching, where a server hosts $N$ files, each of size $F$ bits, and is connected to $K$ users through a shared link. There are $c$ caches distributed…

信息论 · 计算机科学 2024-06-25 Monolina Dutta , Anoop Thomas , B. Sundar Rajan

The hierarchical caching system where a server connects with multiple mirror sites, each connecting with a distinct set of users, and both the mirror sites and users are equipped with caching memories has been widely studied. However all…

信息论 · 计算机科学 2022-09-21 Yun Kong , Youlong Wu , Minquan Cheng

A new scheme for the problem of centralized coded caching with non-uniform demands is proposed. The distinguishing feature of the proposed placement strategy is that it admits equal sub-packetization for all files while allowing the users…

信息论 · 计算机科学 2019-07-26 Saeid Sahraei , Pierre Quinton , Michael Gastpar

Recently, edge caching and multicasting arise as two promising technologies to support high-data-rate and low-latency delivery in wireless communication networks. In this paper, we design three transmission schemes aiming to minimize the…

信息论 · 计算机科学 2019-03-18 Shiwen He , Ju Ren , Jiaheng Wang , Yongming Huang , Yaoxue Zhang , Weihua Zhuang , Sherman , Shen

Coded caching is a technique that leverages locally cached contents at the end users to reduce the network's peak-time communication load. Coded caching has been shown to achieve significant performance gains compared to uncoded schemes and…

信息论 · 计算机科学 2024-01-17 Yinbin Ma , Daniela Tuninetti

A radar and communication integration (RCI) system has great flexibility in allocating antenna resources to guarantee both radar and communication performance. This paper considers the array allocation problems for multiple target…

信号处理 · 电气工程与系统科学 2020-10-09 Zhenkai Zhang , Hamid Esmaeili Najafabadi , Henry Leung

Next-generation mobile networks are expected to facilitate fast AI model downloading to end users. By caching models on edge servers, mobile networks can deliver models to end users with low latency, resulting in a paradigm called edge…

网络与互联网体系结构 · 计算机科学 2024-05-21 Guanqiao Qu , Zheng Lin , Fangming Liu , Xianhao Chen , Kaibin Huang

This paper studies the performance of cache-enabled dense small cell networks consisting of multi-antenna sub-6 GHz and millimeter-wave base stations. Different from the existing works which only consider a single antenna at each base…

网络与互联网体系结构 · 计算机科学 2018-01-18 Yongxu Zhu , Gan Zheng , Lifeng Wang , Kai-Kit Wong , Liqiang Zhao