The third generation (3G) mobile communication system is the next big thing in the world of mobile teleCOMMUNICATIONS. The first generation included analog mobile phones [e.g., Total Access COMMUNICATIONS Systems (TACS), Nordic Mobile Telephone (NMT), and Advanced Mobile Phone Service (AMPS)], and the second generation (2G) included digital mobile phones [e.g., global system for mobile COMMUNICATIONS (GSM), personal digital cellular (PDC), and digital AMPS (D-AMPS)]. The 3G will bring digital multimedia handsets with high data transmission rates, capable of providing much more than basic voice calls.
標(biāo)簽： COMMUNICATIONS Introduction Mobile 3G to
上傳時間： 2020-05-27
上傳用戶：shancjb
Wireless is one of the most rapidly developing technologies in our time, with dazzling new products and services emerging on an almost daily basis. These developments present enormous challenges for COMMUNICATIONS engineers, as the demand for increased wireless capacity grows explosively. Indeed, the discipline of wireless COMMUNICATIONS presents many challenges to designers that arise as a result of the demanding nature of the physical medium and the complexities in the dynamics of the underlying network.
標(biāo)簽： COMMUNICATIONS Wireless MIMO
上傳時間： 2020-05-28
上傳用戶：shancjb
MIMO-OFDM is a key technology for next-generation cellular COMMUNICATIONS (3GPP-LTE, Mobile WiMAX, IMT-Advanced) as well as wireless LAN (IEEE 802.11a, IEEE 802.11n), wireless PAN (MB-OFDM), and broadcasting (DAB, DVB, DMB). This book provides a comprehensive introduction to the basic theory and practice of wireless channel modeling, OFDM, and MIMO, with MATLAB ? programs to simulate the underlying techniques on MIMO-OFDMsystems.Thisbookisprimarilydesignedforengineersandresearcherswhoare interested in learning various MIMO-OFDM techniques and applying them to wireless COMMUNICATIONS.
標(biāo)簽： COMMUNICATIONS MIMO-OFDM Wireless MATLAB with
上傳時間： 2020-05-28
上傳用戶：shancjb
There are few technologies that have had a more profound effect on people’s lives than mobile COMMUNICATIONS. As recently as twenty years ago no one had a mobile phone, while today 1.4 billion men, women and children depend on them. This now exceeds the number of landline users, where it took the preceding one hundred years to reach the 1 billion mark. The ability to make mobile voice calls turns out to be the answer to a deeply felt need across different cultures who simply want to communicate.
標(biāo)簽： COMMUNICATIONS Wireless Mobile and
上傳時間： 2020-05-30
上傳用戶：shancjb
By definition, the term “mobile-radio COMMUNICATIONS” describes any radio communication link between two terminals of which one or both are in motion or halted at unspecified locations and of which one may actually be a fixed terminal such as a base station. This definition applies to both mobile-to-mobile and mobile-to-fixed radio communica- tion links. The mobile-to-mobile link could in fact consist of a mobile- to-fixed-to-mobile radio communication link.The term “mobile” applies to land vehicles, ships at sea, aircraft, and COMMUNICATIONS satellites. In tactical situations, mobile-radio systems may include any or all of these types of mobile terminals.
標(biāo)簽： COMMUNICATIONS Engineering Mobile
上傳時間： 2020-05-30
上傳用戶：shancjb
Multi-carrier modulation? Orthogonal Frequency Division Multi- plexing (OFDM) particularly? has been successfully applied to a wide variety of digital COMMUNICATIONS applications over the past several years. Although OFDM has been chosen as the physical layer standard for a diversity of important systems? the theory? algorithms? and implementation techniques remain subjects of current interest. This is clear from the high volume of papers appearing in technical journals and conferences.
標(biāo)簽： COMMUNICATIONS MULTI-CARRIER DIGITAL
上傳時間： 2020-05-31
上傳用戶：shancjb
This book focuses on the study and development of one of the most advanced topics in broadband wireless COMMUNICATIONS systems: power efficiency and power consumption in wireless COMMUNICATIONS systems, especially of mobile devices. Hence, the main focus of this book is on the most recent techniques for the conservation of power and increase in power efficiency.
標(biāo)簽： COMMUNICATIONS Efficiency Broadband Power in
上傳時間： 2020-05-31
上傳用戶：shancjb
In this book, we present the basic pinciples that underlie the analysis and design of digital communication system.The subject of digital COMMUNICATIONS involves the transmission of information in digital form from a source that generates the information to one or more destinations.
標(biāo)簽： J.G. COMMUNICATIONS Proakis Digital
上傳時間： 2020-05-31
上傳用戶：shancjb
If you would like to follow along with some of the steps outlined in this book, we recommend that you deploy Live COMMUNICATIONS Server 2005 SP1 on a physical or virtual server running Microsoft Windows Server 2003. To run Communicator 2005, you will need a physical or virtual PC running Windows XP or Windows Server 2003. To fully test Microsoft Office integration with Communicator 2005, you need to be running Microsoft Office 2003 with Service Pack 2.
標(biāo)簽： COMMUNICATIONS Professional Server Live
上傳時間： 2020-05-31
上傳用戶：shancjb
The book is written for those concerned with the design and performance of satellite COMMUNICATIONS systems employed in fixed point-to-point, broadcasting, mobile, radio- navigation,data-relay,computerCOMMUNICATIONS,andrelatedsatellite-basedapplications.The recentrapidgrowthinsatelliteCOMMUNICATIONShascreatedaneedforaccurateinformationon both satellite COMMUNICATIONS systems engineering and the impact of atmospheric effects on satellite link design and system performance. This book addresses that need for the first time in a single comprehensive source.
標(biāo)簽： COMMUNICATIONS Satellite Systems
上傳時間： 2020-06-01
上傳用戶：shancjb
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