Optical Access Architecture

Authored by: Partha Pratim Sahu

Fundamentals of Optical Networks and Components

Print publication date:  July  2020
Online publication date:  July  2020

Print ISBN: 9780367265458
eBook ISBN: 9780429293764
Adobe ISBN:

10.1201/9780429293764-9

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Abstract

Before discussing optical access architecture, it is required to know about the basic access techniques used for networks such as local area network (LAN) [1], wide area network (WAN) [2] and metropolitan area network (MAN) [3]. One property of a LAN is that its backbone having a shared transmission link permits all attached users to simultaneously attempt to obtain the access for transmission. Thus, two or more stations transmit simultaneously providing their signals to interfere and transmission becomes disrupted. To deal these conflicts, a number of access protocols are already proposed for controlling access to network backbone. These all fall into the broad category of asynchronous time-division multiplexing (TDM), since this mechanism is fit for handling the bursty nature of network traffic. The asynchronous TDM mechanism provides contention methods (or random-access schemes) and deterministic (or controlled) techniques [2].

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