Mobile-Edge Computing Versus Centralized Cloud Computing Over a Converged FiWi Access Network

The advent of Internet of Things and 5G applications renders the need for integration of both centralized cloud computing and emerging mobile-edge computing (MEC) with existing network infrastructures to enhance storage, processing, and caching capabilities in not only centralized but also distribut...

Full description

Saved in:
Bibliographic Details
Published in:IEEE eTransactions on network and service management 2017-09, Vol.14 (3), p.498-513
Main Authors: Rimal, Bhaskar Prasad, Dung Pham Van, Maier, Martin
Format: Article
Language:English
Subjects:
Broadband
Broadband communication
Caching
Cloud computing
Communications traffic
Computation offloading
Computing time
Delay
dynamic bandwidth allocation
Edge computing
fiber-wireless (FiWi)
Mobile computing
mobile-edge computing (MEC)
Optical network units
passive optical network (PON)
Passive optical networks
Resource management
Response time (computers)
Servers
Survivability
Telecommunications industry
Time Division Multiple Access
Traffic flow
Wireless communication
Wireless networks
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The advent of Internet of Things and 5G applications renders the need for integration of both centralized cloud computing and emerging mobile-edge computing (MEC) with existing network infrastructures to enhance storage, processing, and caching capabilities in not only centralized but also distributed fashions for supporting both delay-tolerant and mission-critical applications. This paper investigates performance gains of centralized cloud and MEC enabled integrated fiber-wireless (FiWi) access networks. A novel unified resource management scheme incorporating both centralized cloud and MEC computation offloading activities into the underlying FiWi dynamic bandwidth allocation process is proposed. Both MEC and cloud traffic are scheduled outside the transmission slot of FiWi traffic by leveraging time division multiple access. An analytical framework is developed to model packet delay, response time efficiency, gain-offload overhead ratio, and communication-to-computation ratio for both cloud and broadband access traffic. In addition, given the importance of reliability in optical backhaul and MEC, this paper develops a probabilistic survivability analysis model to assess the impact of both fiber cuts and MEC server failures. The obtained results demonstrate the feasibility of implementing conventional cloud and MEC in FiWi access networks, without affecting network performance of broadband access traffic.
ISSN:1932-4537
1932-4537
DOI:10.1109/TNSM.2017.2706085