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A decade ago, I first wrote that people moved, and networks needed to adapt to the
reality that people worked on the go. Of course, in those days, wireless LANs came
with a trade-off. Yes, you could use them while moving, but you had to trade a great
deal of throughput to get the mobility. Although it was possible to get bits anywhere,
even while in motion, those bits came slower. As one of the network engineers I worked
with put it, “We’ve installed switched gigabit Ethernet everywhere on campus, so I
don’t understand why you’d want to go back to what is a 25-megabit hub.” He un-
derestimated the allure of working on the go.
標簽：
Survival
802.11
Guide
上傳時間：
2020-05-26
上傳用戶：shancjb
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The working title of this book was Channel Equalization for Everyone. Channel
equalization for everyone? Well, for high school students, channel equalization
provides a simple, interesting example of how mathematics and physics can be
used to solve real-world problems.
標簽：
Equalization
Channel
上傳時間：
2020-05-26
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The aim of this book, the first of two volumes, is to present selected research that
has been undertaken under COST Action IC0902 ‘‘Cognitive Radio and Net-
working for Cooperative Coexistence of Heterogeneous Wireless Networks’’
(http://newyork.ing.uniroma1.it/IC0902/). COST (European Cooperation in Sci-
ence and Technology) is one of the longest-running European frameworks sup-
porting cooperation among scientists and researchers across Europe.
標簽：
Communication
Cognitive
上傳時間：
2020-05-26
上傳用戶：shancjb
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This book is intended to help electric power and telephone company
personnel and individuals interested in properly protecting critical tele-
communications circuits and equipment located in high voltage (HV)
environments and to improve service reliability while maintaining safe
working conditions. Critical telecommunications circuits are often
located in HV environments such as electric utility power plants,
substations, cell sites on power towers, and standalone telecommuni-
cations facilities such as 911 call centers and mountaintop telecom-
munications sites.
標簽：
Protection
Voltage
High
上傳時間：
2020-05-27
上傳用戶：shancjb
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This preface is somewhat different from prefaces found in similar books because it does not
focus so much on the content of the book.We have instead chosen to write a few words about
our own experiences from working with telephony services over Internet Protocol (IP). Here
are our stories.
標簽：
Multimedia
Telephony
Cellular
Systems
over
IMS
上傳時間：
2020-05-27
上傳用戶：shancjb
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When we started thinking about writing the first edition of this book a few years ago, we had been
working together for more than five years on the borderline between propagation and signal processing.
Therefore, it is not surprising that this book deals with propagation models and design tools for MIMO
wireless communications. Yet, this book should constitute more than a simple combination of these
two domains. It hopefully conveys our integrated understanding of MIMO, which results from endless
controversial discussions on various multi-antenna related issues, as well as various interactions with
numerous colleagues. Obviously, this area of technology is so large that it is beyond our aim to cover all
aspects in details. Rather, our goal is to provide researchers, R&D engineers and graduate students with
a comprehensive coverage of radio propagation models and space–time signal processing techniques
for multi-antenna, multi-user and multi-cell networks.
標簽：
Wireless
Networks
MIMO
上傳時間：
2020-05-28
上傳用戶：shancjb
-
When we started thinking about writing this book, we had been working together for more
than five years on the borderline between propagation and signal processing.Therefore, it
is not surprising that this book deals with propagation models and design tools for MIMO
wirelesscommunications.Yet, thisbookshouldconstitutemorethanasimplecombination
of these two domains. It hopefully conveys our integrated understanding of MIMO, which
results from endless controversial discussions on various multi-antenna related issues, as
well as various interactions with numerous colleagues. Obviously, this area of technology
is so large that it was beyond our aim to cover all aspects in details. Rather, our goal has
been to provide researchers, R&D engineers and graduate students with a comprehensive
coverage of radio propagation models and space–time coding techniques.
標簽：
Communications5
Wireless
MIMO
上傳時間：
2020-05-28
上傳用戶：shancjb
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This book is about multipoint cooperative communication, a key technology to
overcome the long-standing problem of limited transmission rate caused by inter-
point interference. However, the multipoint cooperative communication is not an
isolated technology. Instead, it covers a vast range of research areas such as the
multiple-input multiple-outputsystem, the relay network, channel state information
issues, inter-point radio resource management operations, coordinated or joint
transmissions, etc. We suppose that any attempt trying to thoroughly analyze the
multipoint cooperative communication technology might end up working on a
cyclopedia for modern communication systems and easily get lost in discussing all
kinds of cooperative communication schemes as well as the associated models and
their variations.
標簽：
Communication
Multi-point
Cooperative
Systems
上傳時間：
2020-05-31
上傳用戶：shancjb
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The purpose of this book is to introduce the concept of the Multiple Input Multiple Output
(MIMO) radio channel, which is an intelligent communication method based upon using
multiple antennas. The book opens by explaining MIMO in layman’s terms to help stu-
dents and people in industry working in related areas become easily familiarised with the
concept. Therefore the structure of the book will be carefully arranged to allow a user to
progress steadily through the chapters and understand the fundamental and mathematical
principles behind MIMO through the visual and explanatory way in which they will be
written. It is the intention that several references will also be provided, leading to further
reading in this highly researched technology.
標簽：
Practical
Guide
MIMO
to
上傳時間：
2020-05-31
上傳用戶：shancjb
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Welcome to the world of wireless communications and the logical extension
to the broadband architectures that are emerging as the future of the
industry. No aspect of communications will be untouched by the wireless
interfaces;no part of our working environment will be left untouched either.
As the world changes and the newer technologies emerge, we can expect to
see more in the line of untethered communications than in the wired inter-
faces.
標簽：
Broadband
Wireless
Handbook
上傳時間：
2020-06-01
上傳用戶：shancjb
