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As wireless services and applications become more sophisticated and require faster and higher-capacity networks, there is a need for an efficient management of the execution of increasingly complex tasks based on the requirements of each…

分布式、并行与集群计算 · 计算机科学 2020-07-22 Jungyeon Baek , Georges Kaddoum

Vertical federated learning (FL) is a collaborative machine learning framework that enables devices to learn a global model from the feature-partition datasets without sharing local raw data. However, as the number of the local intermediate…

信息论 · 计算机科学 2023-05-11 Yuanming Shi , Shuhao Xia , Yong Zhou , Yijie Mao , Chunxiao Jiang , 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

Hybrid beamforming is known to be a cost-effective and wide-spread solution for a system with large-scale antenna arrays. This work studies the optimization of the analog and digital components of the hybrid beamforming solution for remote…

信息论 · 计算机科学 2019-03-15 Jaein Kim , Seok-Hwan Park , Osvaldo Simeone , Inkyu Lee , Shlomo Shamai

Fog computing is an emerging paradigm that aims to meet the increasing computation demands arising from the billions of devices connected to the Internet. Offloading services of an application from the Cloud to the edge of the network can…

分布式、并行与集群计算 · 计算机科学 2020-01-28 Nan Wang , Blesson Varghese

A hybrid cloud radio access network (H-CRAN) architecture has been proposed to alleviate the midhaul capacity limitation in C-RAN. In this architecture, functional splitting is utilized to distribute the processing functions between a…

网络与互联网体系结构 · 计算机科学 2019-07-02 Ajay Sriram , Meysam Masoudi , Abdulrahman Alabbasi , Cicek Cavdar

Open radio access network (ORAN) provides an open architecture to implement radio access network (RAN) of the fifth generation (5G) and beyond mobile communications. As a key technology for the evolution to the sixth generation (6G)…

Explosive growth in the use of smart wireless devices has necessitated the provision of higher data rates and always-on connectivity, which are the main motivators for designing the fifth generation (5G) systems. To achieve higher system…

网络与互联网体系结构 · 计算机科学 2016-08-31 Sahar Imtiaz , Hadi Ghauch , M. Mahboob Ur Rahman , George Koudouridis , James Gross

In this paper, a Cognitive Radio Network (CRN) based on artificial intelligence is proposed to distribute the limited radio spectrum resources more efficiently. The CRN framework can analyze the time-sensitive signal data close to the…

信号处理 · 电气工程与系统科学 2017-11-29 Jingyang Lu , Lun Li , Genshe Chen , Dan Shen , Khanh Pham , Erik Blasch

We study the problem of uplink compression for cell-free multi-input multi-output networks with limited fronthaul capacity. In compress-forward mode, remote radio heads (RRHs) compress the received signal and forward it to a central unit…

信息论 · 计算机科学 2025-06-16 Zehua Li , Jingjie Wei , Raviraj Adve

A fog-aided wireless network architecture is studied in which edge-nodes (ENs), such as base stations, are connected to a cloud processor via dedicated fronthaul links, while also being endowed with caches. Cloud processing enables the…

信息论 · 计算机科学 2019-12-19 Avik Sengupta , Ravi Tandon , Osvaldo Simeone

Fifth-generation (5G) and beyond systems are expected to accelerate the ongoing transformation of power systems towards the smart grid. However, the inherent heterogeneity in smart grid services and requirements pose significant challenges…

Centralized coded caching and delivery is studied for a radio access combination network (RACN), whereby a set of $H$ edge nodes (ENs), connected to a cloud server via orthogonal fronthaul links with limited capacity, serve a total of $K$…

信息论 · 计算机科学 2019-10-01 Ahmed Roushdy , Abolfazl Seyed Motahari , Mohammed Nafie , Deniz Gunduz

Multicast transmission and wireless caching are effective ways of reducing air and backhaul traffic load in wireless networks. This paper proposes to incorporate these two key ideas for content-centric multicast transmission in a cloud…

信息论 · 计算机科学 2015-08-12 Hao Zhou , Meixia Tao , Erkai Chen , Wei Yu

This paper considers the joint fronthaul compression and transmit beamforming design for the uplink cloud radio access network (C-RAN), in which multi-antenna user terminals communicate with a cloud-computing based centralized processor…

信息论 · 计算机科学 2017-05-09 Yuhan Zhou , Wei Yu

In this paper, we design a new smart softwaredefined radio access network (RAN) architecture with important properties like flexibility and traffic awareness for sixth generation (6G) wireless networks. In particular, we consider a…

信号处理 · 电气工程与系统科学 2022-02-21 Ali Nouruzi , Atefeh Rezaei , Ata Khalili , Nader Mokari , Mohammad Reza Javan , Eduard A. Jorswieck , Halim Yanikomeroglu

In cloud radio access networks (C-RANs), the baseband units and radio units of base stations are separated, which requires high-capacity fronthaul links connecting both parts. In this paper, we consider the delay-aware fronthaul allocation…

信息论 · 计算机科学 2015-03-02 Wei Wang , Vincent K. N. Lau , Mugen Peng

This paper considers a downlink transmission of cloud radio access network (C-RAN) in which precoded baseband signals at a common baseband unit are compressed before being forwarded to radio units (RUs) through limited fronthaul capacity…

信息论 · 计算机科学 2017-03-20 Kien-Giang Nguyen , Quang-Doanh Vu , Markku Juntti , Le-Nam Tran

A key problem in the design of cloud radio access networks (CRANs) is that of devising effective baseband compression strategies for transmission on the fronthaul links connecting a remote radio head (RRH) to the managing central unit (CU).…

网络与互联网体系结构 · 计算机科学 2015-10-07 Eunhye Heo , Osvaldo Simeone , Hyuncheol Park

The diagonalization of a conventional multiple-input multiple-output (MIMO) channel into parallel and independent subchannels via singular value decomposition (SVD) is a fundamental strategy that allows the MIMO channel capacity to be…

信息论 · 计算机科学 2018-02-27 Liang Liu , Pratik Patil , Wei Yu