Title
A Transfer Learning Approach for Cache-Enabled Wireless Networks.
Abstract
Locally caching contents at the network edge constitutes one of the most disruptive approaches in $5$G wireless networks. Reaping the benefits of edge caching hinges on solving a myriad of challenges such as how, what and when to strategically cache contents subject to storage constraints, traffic load, unknown spatio-temporal traffic demands and data sparsity. Motivated by this, we propose a novel transfer learning-based caching procedure carried out at each small cell base station. This is done by exploiting the rich contextual information (i.e., users' content viewing history, social ties, etc.) extracted from device-to-device (D2D) interactions, referred to as source domain. This prior information is incorporated in the so-called target domain where the goal is to optimally cache strategic contents at the small cells as a function of storage, estimated content popularity, traffic load and backhaul capacity. It is shown that the proposed approach overcomes the notorious data sparsity and cold-start problems, yielding significant gains in terms of users' quality-of-experience (QoE) and backhaul offloading, with gains reaching up to $22\%$ in a setting consisting of four small cell base stations.
Year
DOI
Venue
2015
10.1109/WIOPT.2015.7151068
Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks
Keywords
Field
DocType
caching, transfer learning, collaborative filtering, data sparsity, cold-start problem, 5G
Wireless network,Base station,Collaborative filtering,Wireless,Cold start,Backhaul (telecommunications),Cache,Computer science,Computer network,Edge device,Distributed computing
Journal
Volume
Citations 
PageRank 
abs/1503.05448
25
0.83
References 
Authors
14
3
Name
Order
Citations
PageRank
Ejder Bastug167224.99
Mehdi Bennis23652217.26
Mérouane Debbah38575477.64