-
The roots of this book were planted about a decade ago. At that time, I became
increasingly convinced that wide-area and metropolitan-area networks, where much
of my group’s research has been centered at that time, were in good shape. Although
research in these fields was (and still is) needed, that’s not where the networking
bottleneck seemed to be. Rather, the bottleneck was (and still is in many places) in
the access networks, which choked users’ access to information and services. It was
clear to me that the long-term solution to that problem has to involve optical fiber
access networks.
標簽：
Networks
Optical
Access
上傳時間：
2020-05-31
上傳用戶：shancjb
-
Recent decades have shown a tremendous expansion of the Internet. The number of
connected terminals has increased by orders of magnitude, traffic has grown exponen-
tially, coverage has become ubiquitous and worldwide, and today’s sophisticated Web
2.0 applications are increasingly providing services which hitherto have been the realm
of telecommunications, such as Skype and video conferencing. This has even led to the
thought that access to the Internet might one day be a universal right of every citizen.
This evolution will accelerate in the coming decades.
標簽：
networking
Personal
Networks
Wireless
上傳時間：
2020-05-31
上傳用戶：shancjb
-
Wireless communications and networking technology are advancing at a very rapid
pace. Newer technologies and standards are evolving to serve the ever-increasing num-
ber of users demanding different types of mobile applications and services. Research
and development activities on wireless technology constitute one of the most impor-
tant segments of research and development in the telecommunications area today.
標簽：
Management
Resource
Radio
上傳時間：
2020-06-01
上傳用戶：shancjb
-
Cognitive radios have become a vital solution that allows sharing of the scarce
frequency spectrum available for wireless systems. It has been demonstrated
that it can be used for future wireless systems as well as integrated into 4G/5G
wireless systems. Although there is a great amount of literature in the design of
cognitive radios from a system and networking point of view, there has been very
limited available literature detailing the circuit implementation of such systems.
Our textbook, Radio Frequency Integrated Circuit Design for Cognitive Radios, is
the first book to fill a disconnect in the literature between Cognitive Radio systems
and a detailed account of the circuit implementation and architectures required to
implement such systems. In addition, this book describes several novel concepts
that advance state-of-the-art cognitive radio systems.
標簽：
Cognitive
Systems
Design
Radio
RFIC
for
上傳時間：
2020-06-01
上傳用戶：shancjb
-
Before I can present design concepts or tactical wireless communications and network
challenges, I feel the need to mention the challenges of writing for a field where some
information is not available for public domain and cannot be included in this book’s context.
Another challenge is the use of military jargon and the extensive number of abbreviations
(and abbreviations of abbreviations!) in the field. Engineering books are naturally dry, and I
have attempted to make it light by presenting the concepts in layman’s terms before diving
into the technical details. I am structuring this book in such a way as to make it useful for
a specialized graduate course in tactical communications and networking, or as a reference
book in the field.
標簽：
Communications
Tactical
Networks
Wireless
and
上傳時間：
2020-06-01
上傳用戶：shancjb
-
Notwithstanding its infancy, wireless mesh networking (WMN) is a hot and
growing field. Wireless mesh networks began in the military, but have since
become of great interest for commercial use in the last decade, both in local
area networks and metropolitan area networks. The attractiveness of mesh
networks comes from their ability to interconnect either mobile or fixed
devices with radio interfaces, to share information dynamically, or simply to
extend range through multi-hopping.
標簽：
Multi-hop
Networks
WiMAX
WiFi
Mesh
LTE
and
上傳時間：
2020-06-01
上傳用戶：shancjb
-
During the past three decades, the world has seen signifi cant changes in the telecom-
munications industry. There has been rapid growth in wireless communications, as
seen by large expansion in mobile systems. Wireless communications have moved
from fi rst-generation (1G) systems primarily focused on voice communications to
third-generation (3G) systems dealing with Internet connectivity and multi-media
applications. The fourth-generation (4G) systems will be designed to connect wire-
less personal area networks (WPANs), wireless local area networks (WLANs) and
wireless wide-area networks (WWANs).
標簽：
Communications
networking
Wireless
上傳時間：
2020-06-01
上傳用戶：shancjb
-
Wireless networking is undergoing a transformation from what has
been primarily a medium for supporting voice traffic between telephones,
into what is increasingly becoming a medium for supporting traffic among
a variety of digital devices transmitting media of many types (voice,
data, images, video. etc.) Wireline networking underwent a similar
transformation in the 1990s, which led to an enormous build-up in the
capacity of such networks, primarily through the addition of new optical
fiber, switches and other infrastructure.
標簽：
Multiusers
Detection
Wireless
Networks
上傳時間：
2020-06-01
上傳用戶：shancjb
-
Wireless Mesh Networks (WMN) are believed to be a highly promising
technology and will play an increasingly important role in future
generation wireless mobile networks. WMN is characterized by
dynamic self-organization, self-configuration and self-healing to
enable quick deployment, easy maintenance, low cost, high scalability
and reliable services, as well as enhancing network capacity, connect-
ivity and resilience.
標簽：
networking
Wireless
Mesh
上傳時間：
2020-06-01
上傳用戶：shancjb
-
This chapter provides extensive coverage of existing mobile wireless technologies. Much of the
emphasis is on the highly anticipated 3G cellular networks and widely deployed wireless local
area networks (LANs), as the next-generation smart phones are likely to offer at least these two
types of connectivity. Other wireless technologies that either have already been commercialized or
are undergoing active research and standardization are introduced as well. Because standardization
plays a crucial role in developing a new technology and a market, throughout the discussion
standards organizations and industry forums or consortiums of some technologies are introduced.
In addition, the last section of this chapter presents a list of standards in the wireless arena.
標簽：
networking
Wireless
Complete
上傳時間：
2020-06-01
上傳用戶：shancjb
