【資料名稱】：電信基礎第五版

【資料作者】：Annabel Z. Dodd

【資料日期】：2012

【資料語言】：英文

【資料格式】：DOC

【資料目錄和簡介】：

部分目錄：書中包括LTE，WIMAX，云計算，軟件定義網(wǎng)絡等先進技術，本書申請加精。

Part IV
Mobile Networks and Mobile Carriers Worldwide 303
7 Mobile and Wi-Fi Networks 305
Introduction 306
First-Generation Analog Technologies 308
Analog Cellular Service 308
Cellular, Wireless, Cordless, and Mobile 308
Finite Spectrum for Wireless Networks 309
The Division of Airwaves into Frequencies 309
The Characteristics of Short and Long Wavelengths 310
Spectrum Blocks 311
Using Auctions to Allocate Spectrum 312
Shared Access to Spectrum to Increase Efficient Utilization 314
Unused Spectrum on the Secondary Market 317
Regulating the Amount of Spectrum per Carrier by Using Spectrum
Screens 318
Synchronizing Spectrum Internationally 318
Mitigating Interference 319
Unlicensed Spectrum for “Super” Wi-Fi 319
Second-, Third-, and Fourth-Generation Digital Networks 321
Second-Generation Digital Service 321
GSM Service 322
Roaming Using Mobile Devices in Other Networks 322
CDMA Service 323
Compatibility throughout Europe; a Mix of Standards in the United States 323
Connections to Customers and Mobile Networks via the Cell Site 324
Third-Generation Digital Mobile Air Interfaces 324
The Most Common 3G Technologies 325
The Transition to WCDMA 325
Divergent Paths to 3G 326
Migrating from 2G to Wideband CDMA 3G Service 326
3.5 Technologies and the WCDMA Evolution 327
Doubling Voice Capacity with CDMA2000 1X 327
Infrastructure in Second- and Third- Generation Mobile Networks 328
Fourth-Generation Advanced Mobile Services 332
Pre-4G Mobile Services: LTE, WiMAX, and HSPA+ 333
Definitions of 4G 334
LTE Capacity and Roaming 335
The Benefits of LTE for Carriers 336
Frequency- and Time-Division Implementations of LTE 336
4G Multiple-Input Multiple-Output Antennas 337
The LTE and WiMAX Orthogonal Frequency-Division Multiplexing Air
Interface 337
The Increasing Number of LTE Deployments 338
The Specifications for WiMAX Antennas and the Air Interface 339
Packetized Voice on LTE and WiMAX Networks 340
The Streamlined Infrastructure of Long-Term Evolution
Architecture 341
LTE Cell Sites Offer Additional Functionality 341
The Three Elemental Functions of the LTE IP Core 343
Databases in the LTE Core 344
Connecting Cell Sites and Core Networks 344
Software-Defined Radios 347
SDRs for Handsets, USB Modems, and Tablet Computers 348

The Microcell Technology of Picocells and Femtocells 350
Picocells 350
Picocell Technology with Centralized Management Capability and Multisite
Distribution 351
Using Distributed Antenna Systems for In-Building Coverage 351
Deploying Femtocells for Improved Coverage 352
Handheld Devices and Tablet Computers 353
Multiband Handsets versus Multi-mode Handsets 353
Managing Security and Billing for Mobile Devices in Enterprises 354
Killing Lost or Stolen Portable Computers by Using the Global Positioning
System 356
The Driving Force of Smartphones 356
Tablet Computers and the Increasing Amount of Traffic They Generate 359
Applications and Services 360
Applications on Smartphones and Tablet Computers 360
Mobile Banking Transactions and Payments 362
Machine-to-Machine Communications—between Devices with Embedded
Radios 363
Using Prepaid Mobile Services 364
Wi-Fi Standards, Architecture, and Use in Cellular Networks 365
The 802.11 Standard, WLAN, and Wi-Fi 366
The 802.11 Standards 366
WLAN Architecture in Enterprises 368
Managing Security on WLANs 374
Using Wi-Fi to Offload Traffic from Congested Mobile Networks 375
Wireless Internet Service Providers 376
Satellites 376
Satellite Networks 377
Satellite Telephones 377
New, High-Frequency Satellite Service for Airplanes and Internet Access 377
Summary 378
Appendix 379
8 Mobile Carriers Worldwide 387
Introduction 388
The Largest Mobile Carriers Worldwide 390