中文
相关论文

相关论文: Decentralized Asynchronous Coded Caching Design an…

200 篇论文

Over the last few years, Cloud Radio Access Network (C-RAN) has arisen as a transformative architecture for 5G cellular networks that brings the flexibility and agility of cloud computing to wireless communications. At the same time,…

信息论 · 计算机科学 2017-04-11 Tuyen X. Tran , Abolfazl Hajisami , Dario Pompili

Coded caching is an information theoretic scheme to reduce high peak hours traffic by partially prefetching files in the users local storage during low peak hours. This paper considers heterogeneous decentralized caching systems where cache…

信息论 · 计算机科学 2020-01-17 Mozhgan Bayat , Kai Wan , Mingyue Ji , Giuseppe Caire

In this paper, optimal content caching strategy is proposed to jointly minimize the cell average outage probability and fronthaul usage in cloud radio access network (Cloud-RAN). At first, an accurate closed form expression of the outage…

信息论 · 计算机科学 2018-02-06 Zhun Ye , Cunhua Pan , Huiling Zhu , Jiangzhou Wang

As a promising paradigm for the fifth generation wireless communication (5G) system, the fog radio access network (F-RAN) has been proposed as an advanced socially-aware mobile networking architecture to provide high spectral efficiency…

信息论 · 计算机科学 2017-09-18 Mugen Peng , Kecheng Zhang

Coded caching scheme provides us an effective framework to realize additional coded multicasting gain by exploiting coding into multiple transmitted signals. The goal of coded caching design is to jointly optimize the placement and delivery…

信息论 · 计算机科学 2019-06-21 Qiaoling Zhang , Lei Zheng , Minquan Cheng , Qingchun Chen

Popular content caching is expected to play a major role in efficiently reducing backhaul congestion and achieving user satisfaction in next generation mobile radio systems. Consider the downlink of a cache-enabled cloud radio access…

信息论 · 计算机科学 2016-09-07 Oussama Dhifallah , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

In this paper, we study a network of distributed radar sensors that collaboratively perform sensing tasks by transmitting their quantized radar signals over capacity-constrained fronthaul links to a central unit for joint processing. We…

信号处理 · 电气工程与系统科学 2024-09-27 Christian Eckrich , Abdelhak M. Zoubir , Vahid Jamali

In this paper, we consider the coded-caching broadcast network with user cooperation, where a server connects with multiple users and the users can cooperate with each other through a cooperation network. We propose a centralized coded…

信息论 · 计算机科学 2019-04-12 Jiahui Chen , Haoyu Yin , Xiaowen You , Yanlin Geng , Youlong Wu

In a Fog-Radio Access Network (F-RAN), edge caching and fronthaul connectivity to a cloud processor are utilized for the purpose of content delivery. Additional Device-to-Device (D2D) communication capabilities can support the operation of…

信息论 · 计算机科学 2019-12-20 Roy Karasik , Osvaldo Simeone , Shlomo Shamai

The performance of cloud-based small cell networks (C-SCNs) relies highly on a capacity-limited fronthaul, which degrade quality of service when it is saturated. Coded caching is a promising approach to addressing these challenges, as it…

信息论 · 计算机科学 2019-07-23 Xiongwei Wu , Qiang Li , Victor C. M. Leung , P. C. Ching

Cloud Radio Access Network (C-RAN) is considered as one of the most promising candidate for Fifth Generation (5G) wireless communication system. However, C-RAN imposes stringent requirements on fronthaul in terms of capacity which in turn…

信号处理 · 电气工程与系统科学 2019-04-19 Sandip Das , Marco Ruffini

We address the use of linear randon fountain codes caching schemes in a heterogeneous satellite network. We consider a system composed of multiple hubs and a geostationary Earth orbit satellite. Coded content is memorized in hubs' caches in…

信息论 · 计算机科学 2018-07-17 Estefania Recayte , Francisco Lázaro , Gianluigi Liva

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

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

Phase, frequency, and time synchronization are crucial requirements for many applications, such as multi-static remote sensing and communication systems. Moreover, the synchronization solution becomes even more challenging when the nodes…

信号处理 · 电气工程与系统科学 2020-11-23 Juan Merlano Duncan , Liz Martinez-Marrero , Jorge Querol , Sumit Kumar , Adriano Camps , Symeon Chatzinotas , Bjorn Ottersten

The gains afforded by cloud radio access network (C-RAN) in terms of savings in capital and operating expenses, flexibility, interference management and network densification rely on the presence of high-capacity low-latency fronthaul…

信息论 · 计算机科学 2016-08-29 Osvaldo Simeone , Jinkyu Kang , Joonhyuk Kang , Shlomo Shamai

This correspondence paper investigates joint design of small base station (SBS) clustering, multicast beamforming for access and backhaul links, as well as frequency allocation in backhaul transmission to minimize the total power…

信号处理 · 电气工程与系统科学 2019-09-04 Jun Xu , Pengcheng Zhu , Jiamin Li , Xiaohu You

Coded caching is able to exploit accumulated cache size and hence superior to uncoded caching by distributing different fractions of a file in different nodes. This work investigates coded caching in a large-scale small-cell network (SCN)…

信息论 · 计算机科学 2017-03-31 Xuejian Xu , Meixia Tao

In fog-aided cellular systems, content delivery latency can be minimized by jointly optimizing edge caching and transmission strategies. In order to account for the cache capacity limitations at the Edge Nodes (ENs), transmission generally…

信息论 · 计算机科学 2018-03-22 Jingjing Zhang , Osvaldo Simeone

This paper explores the application of uplink fronthaul compression techniques within Open RAN (O-RAN) to mitigate fronthaul load in decentralized distributed MIMO (DD-MIMO) systems. With the ever-increasing demand for high data rates and…

信号处理 · 电气工程与系统科学 2025-07-08 Mostafa Rahmani , Junbo Zhao , Vida Ranjbar , Ahmed Al-Tahmeesschi , Hamed Ahmadi , Sofie Pollin , Alister G. Burr