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Theartofcomputationofelectromagnetic(EM)problemshasgrownexponentially
for three decades due to the availability of powerful computer resources. In spite of
this, the EM community has suffered without a suitable text on the computational
techniques Commonly used in solving EM-related problems. Although there have
been monographs on one particular technique or another, the monographs are written
for the experts rather than students. Only a few texts cover the major techniques and
dothatinamannersuitableforclassroomuse.Itseemsexpertsinthisareaarefamiliar
with one or a few techniques but not many seem to be familiar with all the Common
techniques. This text attempts to fill that gap.
標(biāo)簽：
Electromagnetics
Techniques
Numerical
in
上傳時間：
2020-05-31
上傳用戶：shancjb
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The investigation of the propagation channel is becoming more and more important in mod-
ern wireless communication. The demand for spectral efficiency motivates exploitation of
all channels that can possibly be used for communications. Nowadays, a Common trend for
designing physical layer algorithms is to adapt the transceiving strategy, either by maximizing
the diversity gains or by utilizing the coherence of the channels to improve the signal-to-noise
power ratio.
標(biāo)簽：
Characterization
Propagation
Channel
上傳時間：
2020-05-31
上傳用戶：shancjb
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Thanks for purchasing the RFI Pocket Guide. The
purpose of this guide to help you identify, locate
and resolve radio frequency interference (RFI). It
includes some basic theory and measurement
techniques and there are a number of handy
references, tables, and equations that you may
find useful. The focus is to assist both amateur
radio operators, as well as commercial broadcast
and communications engineers, in resolving a
variety of Common interference issues.
標(biāo)簽：
Radio_Frequency_Interference_Pock
et_Guide
上傳時間：
2020-06-01
上傳用戶：shancjb
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The outcome of the 3GPP SAE (system architecture evolution) technical study
and specification work is a set of standards that specifies the evolution of the
packet core network for GSM/GPRS and WCDMA/HSPA to an all-IP architec-
ture and enables a feature-rich ‘Common packet core’ for radio accesses devel-
oped within 3GPP and also by other standardization fora.
標(biāo)簽：
Evolved
Packet
Core
SAE
and
the
上傳時間：
2020-06-01
上傳用戶：shancjb
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The first question most readers of an O’Reilly book might ask is about the choice of the
cover animal. In this case, “why a duck?” Well, for the record, our first choice was a
unicorn decked out in glitter and a rainbow sash.
That response always gets a laugh (we are sure you just giggled a little), but it also brings
to the surface a Common perception of software-defined networks among many expe‐
rienced network professionals. Although we think there is some truth to this perception,
there is certainly more meat than myth to this unicorn.
標(biāo)簽：
Networks
Software
Defined
SDN
上傳時間：
2020-06-01
上傳用戶：shancjb
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Since the first edition of the book was published, the field of modeling and simulation of
communication systems has grown and matured in many ways, and the use of simulation as a
day-to-day tool is now even more Common practice. Many new modeling and simulation
approaches have been developed in the recent years, many more commercial simulation
packages are available, and the evolution of powerful general mathematical applications
packages has provided still more options for computer-aided design and analysis. With the
current interest in digital mobile communications, a primary area of application of modeling
and simulation is now to wireless systems of a different flavor than the traditional ones.
標(biāo)簽：
Communication
Simulation
Systems
of
上傳時間：
2020-06-01
上傳用戶：shancjb
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Once upon a time, cellular wireless networks provided two basic services: voice
telephony and low-rate text messaging. Users in the network were separated
by orthogonal multiple access schemes, and cells by generous frequency reuse
patterns [1]. Since then, the proliferation of wireless services, fierce competition,
andthe emergenceof new service classes such as wireless data and multimediahave
resulted in an ever increasing pressure on network operators to use resources in a
moreefficient manner.In the contextof wireless networks,two of the most Common
resources are power and spectrum—and, due to regulations, these resources are
typically scarce. Hence, in contrast to wired networks, overprovisioning is not
feasible in wireless networks.
標(biāo)簽：
Maximization
Nonconvex
Wireless
Utility
Systems
in
上傳時間：
2020-06-01
上傳用戶：shancjb
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In this first part of the book the Vienna Link Level (LL) Simulators are described.
The first chapter provides basics of LL simulations, introduces the most Common
variables and parameters as well as the transceiver structures that are applied in
Long-Term Evolution (LTE) and Long-Term Evolution-Advanced (LTEA). We
focus here mostly on the Downlink (DL) of LTE as most results reported in later
chapters are related to DL transmissions.
標(biāo)簽：
LTE-Advanced
Simulators
Vienna
上傳時間：
2020-06-01
上傳用戶：shancjb
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Since electronic equipment was first developed, static electricity has been a
source of problems for users and designers. In the last few years, however,
electrostatic discharge (ESD) has become a source of major problems. This
has occurred because newer electronic devices, such as integrated circuits,
are much more susceptible to ESD problems than previous devices, such as
vacuum tubes. Another trend compounding this ESD susceptibility problem
is the spread of sophisticated equipment into home and office environments
where ESD is quite Common.
標(biāo)簽：
Electronic
Equipment
ESD
and
上傳時間：
2020-06-05
上傳用戶：shancjb
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Nowadays sensors are part of everyday life in a wide variety of fields: scientific
applications, medical instrumentation, industrial field, ...and, last but not least,
popular mass production and low-cost goods, like smartphones and other mobile
devices. Markets and business behind the field of sensors are quite impressive.
A Common trend for consumer applications is miniaturization which requires, on
one side, a lot of research, development efforts, and resources but, on the other
hand, allows costs and final application size reduction. In this scenario scientific
community and industries are very active to drive innovation.
標(biāo)簽：
Magnetometers
Lorentz
Force
MEMS
上傳時間：
2020-06-06
上傳用戶：shancjb
