COMPUTER NETWORK 计算机网络（英语论文）.doc

计算机网络（双语）论文 作 者： 学 号： 院 系： 自动化工程学院 专 业： 测控技术与仪器082 题 目： COMPUTER NETWORK 指导者： 评阅者： Catalogue Preface………………………………………………………3 Basics…………………………………………………………5 Ultra-High-frequency communication (≥100 MHz)…………………5 Home networking (LAN)厖厖厖厖厖厖厖厖厖? king (LAN)Internet access (broadband over powerlines)厖厖厖厖8 et aMedium frequency (kHz)厖厖厖厖厖厖厖厖厖10 ency (kHzLow-speednarrow-band communication厖厖厖?1w-ba High-speed narrow-band powerline communication?— distribution line carrier厖厖厖厖厖厖厖厖厖厖厖?3 arrow-band pTransmitting radio programs厖厖厖厖厖厖厖厖14ng radio Utility applications厖厖厖厖厖厖厖厖厖?5pplication Low frequency (kHz)厖厖厖厖厖厖厖厖厖?6 ncy (kHz)Broadband over power line (BPL)厖厖厖厖厖厖厖17 over ponotching out and dynamic adaptation to contention厖厖厖厖厖厖厖厖厖厖厖厖18 and dynamic Interference issue remains a challenge to PLC systems厖?9 rfAutomotive uses厖厖厖厖厖厖厖厖厖厖厖21 ssue remainFailure Scenarios厖厖厖厖厖厖厖厖厖厖?1 riosue remaIEEE P1901, ITU G.hn home grids厖厖厖厖厖厖厖22 , ITU GStandards organizations厖厖厖厖厖厖厖厖厖24rganizati Small and medium-sized enterprise office LAN construction scheme厖厖厖厖厖厖厖厖?5 medium-sPersonal feeling厖厖厖厖厖厖厖厖30 elingiumReference directory厖厖厖厖厖厖厖厖?2 irectorym Preface This article is now in its fourth edition. Each edition has corresponded to a different phase in the way computer networks were used. When the first edition appeared in 1980, networks were an academic curiosity. When the second edition appeared in 1988, networks were used by universities and large businesses. When the third edition appeared in 1996, computer networks, especially the Internet, had become a daily reality for millions of people. The new item in the fourth edition is the rapid growth of wireless networking in many forms. The networking picture has changed radically since the third edition. In the mid-1990s, numerous kinds of LANs and WANs existed, along with multiple protocol stacks. By 2003, the only wired LAN in widespread use was Ethernet, and virtually all WANs were on the Internet. Accordingly, a l