Book contents
- Frontmatter
- Contents
- Contributors
- Preface
- Part I Enabling technologies
- 1 Optical switching fabrics for terabit packet switches
- 2 Broadband access networks: current and future directions
- 3 The optical control plane and a novel unified control plane architecture for IP/WDM networks
- 4 Cognitive routing protocols and architecture
- 5 Grid networking
- Part II Network architectures
- Part III Protocols and practice
- Part IV Theory and models
- About the editors
- Index
- References
2 - Broadband access networks: current and future directions
from Part I - Enabling technologies
Published online by Cambridge University Press: 05 October 2012
- Frontmatter
- Contents
- Contributors
- Preface
- Part I Enabling technologies
- 1 Optical switching fabrics for terabit packet switches
- 2 Broadband access networks: current and future directions
- 3 The optical control plane and a novel unified control plane architecture for IP/WDM networks
- 4 Cognitive routing protocols and architecture
- 5 Grid networking
- Part II Network architectures
- Part III Protocols and practice
- Part IV Theory and models
- About the editors
- Index
- References
Summary
Abstract: Internet users and their emerging applications require high-data-rate access networks. Today's broadband access technologies – particularly in US – are Digital Subscriber Line (DSL) and Cable Modem (CM). But their limited capacity is insufficient for some emerging services such as IPTV. This is creating the demand for Fiber-to-the-X (FTTX) networks – typically employing Passive Optical Network (PON) – to bring the high capacity of fiber closer to the user. Long-Reach PON can reduce the cost of FTTX by extending the PON coverage using Optical Amplifier and Wavelength-Division-Multiplexing (WDM) technologies. Since Internet users want to be untethered (and also mobile), whenever possible, wireless access technologies also need to be considered. Thus, to exploit the reliability, robustness, and high capacity of optical network and the flexibility, mobility, and cost savings of wireless networks, the Wireless-Optical Broadband Access Network (WOBAN) is proposed. These topics are reviewed in this chapter.
Introduction
An access network connects its end-users to their immediate service providers and the core network. The growing customer demands for bandwidth-intensive services are accelerating the need to design an efficient “last mile” access network in a cost-effective manner. Traditional “quad-play” applications, which include a bundle of services with voice, video, Internet, and wireless, need to be delivered over the access network to the end-users in a satisfactory and economical way. High-data-rate Internet access, known as broadband access, is therefore essential to support today's and emerging application demands.
- Type
- Chapter
- Information
- Next-Generation InternetArchitectures and Protocols, pp. 27 - 41Publisher: Cambridge University PressPrint publication year: 2011