信息网络理论基础第一章.pdf

国家重点实验室 信息网络理论基础信息网络理论基础 盛盛 敏敏 msheng@ 国家重点实验室 ReferencesReferences • Data Networks －Second Edition, Dimitri Bertsekas • Computer Networks－Third Edition，Andrew S. Tanenbaum • BroadbandBroadband IntegratedIntegrated NetworksNetworks, MischaMischa SchwartzSchwartz • Introduction to queuing theory-Second Edition, Robert, B. Cooper • 清华牛志升教授的《通信网络基础》课件 • 先修课程《通信网络基础》、《随机过程》 国家重点实验室 第一章章概述 国家重点实验室 1.1 通信网络概述通信网络概述 A communication network, in its simplest form, is a set of equipment and facilities that provides a service: the transfer of information between users located at various geographicalgeographical points.points. • What is a communication network? 国家重点实验室 EvolutionEvolution ofof NetworkNetwork - TrafficTraffic Mobile Mobile Mobile Telepphone Internet Multimedia • 1990s, 1G/2G • 2000s, 2G/3G • 2010s, 3G/4G •partial people connected • most people connected • all the people connected • Voice and SMS only • Voice, SMS, MMS, email, • Voice, SMS, MMS, email, Web, …… Web, TV, VoD……