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找到约 680 项符合 second-Level 的查询结果

书籍 Heterogeneous Wireless Access Networks

With the rapid growth in the number of wireless applications, services and devices, using a single wireless technology such as a second generation (2G) and third gener- ation (3G) wireless system would not be efficient to deliver high speed data rate and quality-of-service (QoS) support to mobile us ...
https://www.eeworm.com/dl/521922.html
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书籍 Introduction to Communications Technologies

Our original effort in writing this book was to create a starting point for those in the business community who did not have a high level of technical expertise but needed to have some understanding of the technical functions of their information and communication technologies (ICT) in a corporate e ...
https://www.eeworm.com/dl/521939.html
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书籍 Introduction+to+3G+Mobile+Communications

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 t ...
https://www.eeworm.com/dl/521941.html
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书籍 LTE-Advanced+and+Next+Generation

In the nineteenth century, scientists, mathematician, engineers and innovators started investigating electromagnetism. The theory that underpins wireless communications was formed by Maxwell. Early demonstrations took place by Hertz, Tesla and others. Marconi demonstrated the first wireless transmis ...
https://www.eeworm.com/dl/521956.html
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书籍 Millimeter+Wave+Communication+Systems

This book presents millimeter wave communication system design and analysis at the level to produce an understanding of the interaction between a wireless system and its front end so that the overall performance can be predicted. Gigabit wireless commu- nications require a considerable amount of ban ...
https://www.eeworm.com/dl/521965.html
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书籍 Mobile Radio Channels

With this book at your fingertips, you, the reader, and I have something in common. We share the same interest in mobile radio channels. This area attracted my interest first in autumn 1992 whenImovedfromindustrytoacademiatofindachallengeinmylifeandtopursueascientific career. Since then, I consider ...
https://www.eeworm.com/dl/521986.html
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书籍 Mobile+and+Wireless+Systems+Beyond+3G

With the rapid growth of the wireless mobile applications, wireless voice has begun to challenge wireline voice, whereas the desire to access e-mail, surf the Web or download music (e.g., MP3) wirelessly is increasing for wireless data. While second generation (2G) cellular wireless systems, such as ...
https://www.eeworm.com/dl/521992.html
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书籍 Mobile+Channel+Characteristics

At the macroscopic level of system layout, the most important issue is path loss. In the older mobile radio systems that are limited by receiver noise, path loss determines SNR and the maximum coverage area. In cellular systems, where the limiting factor is cochannel interference, path loss determin ...
https://www.eeworm.com/dl/521993.html
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书籍 Nanotechnology+Applications

This is believed to be the first book that takes a view of nanotechnology from a telecommunications and networking perspective. Nanotechnology refers to the manip- ulation of materials at the atomic or molecular level. Nanotechnology is getting a lot of attention of late not only in academic setting ...
https://www.eeworm.com/dl/522022.html
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书籍 Networks and Telecommunications

the second ediyion of this text is a much larger work than the first edition,having needed to expand with extensively new section on data
https://www.eeworm.com/dl/522027.html
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