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Recently millimeter-wave bands have been postu-
lated as a means to accommodate the foreseen extreme bandwidth
demands in vehicular communications, which result from the
dissemination of sensory data to nearby vehicles for enhanced
environmental awareness and improved safety level.
標簽:
Millimeter
Wave
V2V
Communications
上傳時間:
2020-05-26
上傳用戶:shancjb
-
This book has grown out of my teaching and research at the University of Surrey and out of
my previous experiences in companies such as Philips, Ascom and Motorola. It is
primarily intended for use by students in master’s level and enhanced final-year under-
graduate courses who are specialising in communication systems and wish to understand
the principles and current practices of the wireless communication channel, including both
antenna and propagation aspects
標簽:
Propagation
Antennas
上傳時間:
2020-05-26
上傳用戶:shancjb
-
Following chapter introduces the mobile communication, gives a short history of wireless
communication evolution, and highlights some application scenarios predestined for the
use of mobile devices. Cellular and wireless based systems related to different generations
of mobile communication, including GSM, IS-95, PHS, AMPS, D-AMPS, cdma2000 and
WCDMA are also described by this Chapter. Much attention in this chapter is given
to express the wireless based networks, such as Wi-Fi and WiBro/WiMax, and wireless
broadcasting systems, including DMB, DVB-H, and ISDB-T. We conclude the chapter
with the future vision of mobile communication evolution
標簽:
Technologies
enhanced
Access
Radio
上傳時間:
2020-05-27
上傳用戶:shancjb
-
Long-TermEvolution(LTE)isarguablyoneofthemostimportantstepsinthecurrentphaseof
the development of modern mobile communications. It provides a suitable base for enhanced
services due to increased data throughput and lower latency figures, and also gives extra
impetus to the modernization of telecom architectures. The decision to leave the circuit-
switched domainoutofthescope ofLTE/SAEsystem standardization might soundradical but
itindicatesthatthetelecomworldisgoingstronglyfortheall-IPconcept----andthedeployment
of LTE/SAE is concrete evidence of this global trend.
標簽:
Deployment
Handbook
LTE-SAE
The
上傳時間:
2020-06-01
上傳用戶:shancjb
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Public telephone operators and new independent wireless operators through-
out the world are deploying wireless access in an effort to drastically reduce
delivery costs in the most expensive part of the network?the local loop.
Available radio technology enables both existing and new entrants to access
subscribers in a rapid manner and deliver their basic telephony products and
broadband-enhanced services.
標簽:
Transmission
Handbooks
Systems
Design
上傳時間:
2020-06-01
上傳用戶:shancjb
-
This is a practical book, to be sure, but it is also a book about hope and posi-
tive change. I am quite sincere. The delivery of electricity is deeply rooted
in the principle of universal access; when clean, reliable energy is available it
contributes to poverty alleviation, improved social conditions, and enhanced
economic development. In the developed world, we know this to be true. The
digital fabric of our lives is a testimony to the importance of energy security.
Across the globe, we have seen the vital contributions that electrification has
brought to the development of economies and an enhanced quality of life.
Nonetheless, this supreme engineering achievement has languished, and we are
deeply challenged.
標簽:
Strategies
Analytics
Data
Big
上傳時間:
2020-06-07
上傳用戶:shancjb
-
Pattern recognition has its origins in engineering, whereas machine learning grew
out of computer science. However, these activities can be viewed as two facets of
the same field, and together they have undergone substantial development over the
past ten years. In particular, Bayesian methods have grown from a specialist niche to
become mainstream, while graphical models have emerged as a general framework
for describing and applying probabilistic models. Also, the practical applicability of
Bayesian methods has been greatly enhanced through the development of a range of
approximate inference algorithms such as variational Bayes and expectation propa-
gation. Similarly, new models based on kernels have had significant impact on both
algorithms and applications.
標簽:
Bishop-Pattern-Recognition-and-Ma
chine-Learning
上傳時間:
2020-06-10
上傳用戶:shancjb
-
Computer science as an academic discipline began in the 1960’s. Emphasis was on
programming languages, compilers, operating systems, and the mathematical theory that
supported these areas. Courses in theoretical computer science covered finite automata,
regular expressions, context-free languages, and computability. In the 1970’s, the study
of algorithms was added as an important component of theory. The emphasis was on
making computers useful. Today, a fundamental change is taking place and the focus is
more on a wealth of applications. There are many reasons for this change. The merging
of computing and communications has played an important role. The enhanced ability
to observe, collect, and store data in the natural sciences, in commerce, and in other
fields calls for a change in our understanding of data and how to handle it in the modern
setting. The emergence of the web and social networks as central aspects of daily life
presents both opportunities and challenges for theory.
標簽:
Foundations
Science
Data
of
上傳時間:
2020-06-10
上傳用戶:shancjb
-
The PW2202 is silicon N-channel enhanced VDMOSFETs, is obtained by the self-aligned planarTechnology which reduce the conduction loss, improve switching performance and enhance theavalanche energy. The transistor can be used in various power switching circuit for system
標簽:
pw2202
上傳時間:
2022-02-11
上傳用戶:默默
-
Introduction The Sil9135/Sil9135A HDMI Receiver with enhanced Audio and Deep Color Outputs is a second-generation dual-input High Definition Multimedia Interface(HDMI)receiver. It is software-compatible with the Sil9133receiver, but adds audio support for DTS-HD and Dolby TrueHD. Digital televisions that can display 10-or 12-bit color depth can now provide the highest quality protected digital audio and video over a single cable. The Sil9135and Sil9135A devices, which are functionally identical, can receive Deep Color video up to 12-bit,1080p @60Hz. Backward compatibility with the DVI 1.0specification allows HDMI systems to connect to existing DVI 1.0 hosts, such as HD set-top boxes and PCs. Silicon Image HDMI receivers use the latest generation Transition Minimized Differential Signaling(TMDS) core technology that runs at 25-225 MHz.The chip comes pre-programmed with High-bandwidth?
標簽:
sii9135
芯片
上傳時間:
2022-06-25
上傳用戶: