The New Generation Access Network

The New Generation Access Network

Christos Vassilopoulos
Copyright: © 2010 |Pages: 36
DOI: 10.4018/978-1-60566-707-2.ch012
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Abstract

This chapter offers a qualitative approach towards the development of the new generation access network, based on FTTx implementations. After a brief description of the current state of traditional access networks and an estimation of the expected data rate per household in terms of services, the chapter examines all the available Network Technologies (FTTx), Access Technologies (xDSL, Ethernet and PON) for both P2P and P2MP development schemes and their relevant implementations. The prospects of NGA are also strategically examined in view of the complicated multi-player environment, involving Telco (ILEC and CLEC), regulators and pressure interest groups, all striving to serve their individual, often conflicting interests. The chapter concludes with an outline of the different deployment strategies for both ILEC and CLEC Telco.
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Definitions: The Traditional Structure Of The Access Network

In accordance with the European Telecommunications Standards Institute (ETSI), the access network is defined as the network part that links the subscriber to its local exchange (LE) including the primary network also known as feeder, the secondary or distribution network and the customer or drop segment as shown in Figure 1. It is also often referred to as the Local Loop, Copper Loop or Last Mile.

Figure 1.

Traditional European Access Network Development

978-1-60566-707-2.ch012.f01

Even though, in most cases, the three-segment “modular” design depicted above is followed, in some exceptions and for large customers (i.e. ministries, banks, hospitals, police etc.) the primary network may be directly terminated into the customer’s premises in a “fixed-feeder like” network approach3.

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