Video Replication and Access over Fog-based Architecture

PhD Qualifying Examination


Title: "Video Replication and Access over Fog-based Architecture"

by

Mr. Zhangyu CHANG


Abstract:

Efficient video content replication and distribution is essential for video 
service providers to support a huge and increasing demand of users and ensure 
the quality of experience (QoE) with reduced operation cost. As the nowadays 
ubiquitous and close-to-user fog devices (WiFi routers, set-top boxes, small 
cell base stations, etc.) have better computation, bandwidth and storage 
capacities, fog devices can collaboratively serve the local users and provide a 
new paradigm for video distribution. However, coordinately managing millions of 
geo-distributed fog devices required new schemes that are different from both 
the traditional content delivery network (CDN) or the peer-to-peer (P2P) 
schemes.

This survey overviews the recent advancement in fog computing to support video 
service. We discuss the recent work on the video popularity characteristics, 
the replication strategies and the access schemes for fog-based video service 
platform. We first overview the video popularity characteristics and discuss 
the fundamental challenges to design an effective fog-based video distribution 
architecture. We then examine the recent advances on two major areas: video 
replication and access. Regarding the replication problem, we present both 
uncoordinated and coordinated replication schemes for a large pool of 
geo-distributed fog devices. Regarding the video access problem, we discuss how 
the users can reach their desirable video contents for both wired and wireless 
networks. We then study 2 real implemented cases (Thunder Crystal and Youku 
Smart-router) of existing large-scale fog-based content distribution platform 
and discuss several future directions.


Date:			Tuesday, 28 August 2018

Time:                  	10:00am - 12:00noon

Venue:                  Room 4504
                         Lifts 25/26

Committee Members:	Prof. Gary Chan (Supervisor)
 			Prof. Qian Zhang (Chairperson)
 			Dr. Brahim Bensaou
 			Dr. Wei Wang


**** ALL are Welcome ****