Introduction

Introduction - Introduction 1 Outline Objective...

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1 Introduction
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Communication Networks © Kang Xi, Polytechnic Institute of NYU 2 Outline ± Objective ± Architecture ± Classification ± Circuit switching ± Packet switching
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Communication Networks © Kang Xi, Polytechnic Institute of NYU 3 What for… ± Information: one place Æ another place ± Commun. network: transportation platform ± Data network: packets.
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Communication Networks © Kang Xi, Polytechnic Institute of NYU 4 Design requirements ± Cost-effective ± Easy to manage ± Resilient ± High-speed ± Scalable ± …..
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Communication Networks © Kang Xi, Polytechnic Institute of NYU 5 Simple example ± Basic requirement: connectivity ± The simplest solution: fully-connected net.
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Communication Networks © Kang Xi, Polytechnic Institute of NYU 6 Fully-connected: pro and cons ± Pro: ² High Performance ± Cons: ² Too many links (how many?) ² Complexity ² Cost ² Scalability
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Communication Networks © Kang Xi, Polytechnic Institute of NYU 7 General Architecture ± Intermediate nodes: signal relay ± End-to-End: multi-hop transportation C E A B D 3 1 5 4 2 Star Ring Mesh
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Communication Networks © Kang Xi, Polytechnic Institute of NYU 8 Hierarchical Architecture
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Communication Networks © Kang Xi, Polytechnic Institute of NYU 9 Classification ± Coverage: ² Wide area network (WAN) ² Metropolitan area network (MAN) ² Local area network (LAN) ± Switching technology: ² Circuit switching ² Packet switching
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Communication Networks © Kang Xi, Polytechnic Institute of NYU 10 WAN, MAN & LAN ± WAN: ² Long distance ² High reliability ± LAN: ² Cost-sensitive ² High speed ± MAN: ² emerging requirement, ~300km ² Requirements between LAN & WAN
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Communication Networks © Kang Xi, Polytechnic Institute of NYU 11
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This note was uploaded on 10/10/2011 for the course ECE 536 taught by Professor Sun during the Spring '11 term at NYU Poly.

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Introduction - Introduction 1 Outline Objective...

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