Guo, Y. Jay
Advances in mobile radio access networks
ISBN 1-58053-727-8
This book gives a comprehensive overview of the technologies for the advances of
mobile radio access networks. The topics covered include linear transmitters,
superconducting filters and cryogenic radio frequency (RF) front head, radio over
fiber, software radio base stations, mobile terminal positioning, high speed
downlink packet access (HSDPA), multiple antenna systems such as smart
antennas and multiple input and multiple output (MIMO) systems, orthogonal
frequency division multiplexing (OFDM) systems, IP-based radio access networks
(RAN), autonomic networks, and ubiquitous networks. These technologies are
aimed at achieving higher data rates, greater coverage and capacity, lower
infrastructure cost, ease of operation and maintenance, higher quality of services,
and richer user experience. Some of them, such as radio over fiber, HSDPA, and
transmit diversity, will become a reality in the near future. Other technologies,
such as software radio base stations, smart antennas, multiple input and multiple
output (MIMO) systems, IP-based RAN, and autonomic networks, are still
regarded by many as research topics for the fourth generation mobile
communications networks (4G). It should be noted, however, that these promising
technologies are not of pure academic interest. Owing to their compelling
advantages, they are being studied by leading mobile network infrastructure
vendors and being employed in various field trials. Therefore, they will play major
roles in future mobile communications networks. In fact, a few of them have even
been adopted already by some local network operators around the globe.
The book is written from the viewpoint of system engineering and is focused
mainly on high-level architectural issues. While highlighting the advantages of the
advanced technologies, major theoretical and practical problems facing system
designers are also discussed. This book aims to serve mobile communications
system engineers, researchers, research and development (R&D) managers, and
telecom analysts. I strive to strike a balance between theory and implementation,
and between technology advance and economics.
Ethereal Network Protocol Analyzer Toolkit provides the reader with a completely integrated book and companion Web site to analyze network traffic using Ethereal, the world’s most popular network protocol analyzer on Windows, Unix, and Apple OS X. This book covers everything from the fundamentals of protocol analysis, to analyzing real world malicious code to programming advanced protocol dissectors. The companion Web site for the book offers dozens of working tools and scripts created for this book. This book provides complete information and step-by-step Instructions for analyzing protocols and network traffic on Windows, Unix or Mac OS X networks. First, readers will learn about the types of sniffers available today and see the benefits of using Ethereal. Readers will then learn to install Ethereal in multiple environments including Windows, Unix and Mac OS X as well as building Ethereal from source and will also be guided through Ethereal’s graphical user interface. The following sections will teach readers to use command-line options of Ethereal as well as using Tethereal to capture live packets from the wire or to read saved capture files. This section also details how to import and export files between Ethereal and WinDump, Snort, Snoop, Microsoft Network Monitor, and EtherPeek. The book then teaches the reader to master advanced tasks such as creating sub-trees, displaying bitfields in a graphical view, tracking requests and reply packet pairs as well as exclusive coverage of MATE, Ethereal’s brand new configurable upper level analysis engine. The final section to the book teaches readers to enable Ethereal to read new Data sources, program their own protocol dissectors, and to create and customize Ethereal reports.
The
security provided by firewalls and VPNs is only as strong as the
protocol rules and policies that you create. The concepts of
"defense-in-depth" and "least privilege" are merely holes in your
perimeter waiting to be exploited, unless you can define and maintain
protocol rules that allow only the minimum protocols required to
provide your requisite services.
This book provides fundamental information necessary to
configure firewalls and build VPNs and DMZs to survive the dangers of
today"s internet. The book includes a bonus chapter from the companion
Web site on using Ethereal to monitor and analyze network traffic.
While you may now feel overwhelmed by the countless firewalls with a
dizzying array of features, you will feel empowered by the knowledge
gained from this book. This book covers the leading firewall products.
It describes in plain English what features can be controlled by a
policy, and walks the reader through the steps for writing the policy
to fit the objective. Because of their vulnerability and their
complexity, VPN policies are covered in more depth with numerous tips
for troubleshooting remote connections. Products covered include Cisco
PIX Firewall, ISA Server 2004, Check Point NGX, Juniper"?s NetScreen
Firewalls, SonicWall, and Nokia.
