designing a wireless network phần 3 ppt
designing a wireless network phần 3 ppt
... antennas.
Planar Array Antennas
Planar array antennas are similar in concept to Yagi antennas except all
elements, both active and parasitic, lie in the same plane.This results in a
flat antenna that can be mounted ... mounted flat on a wall, yet still have the proper-
ties and gain of a directional antenna. Figure 2.17 shows a planar array
antenna.
www.syngress.com
Figure 2.17 Planar A...
designing a wireless network phần 2 pptx
... the
signal cannot penetrate metal. Assume you have a metal sphere. As an
EM wave hits the leading edge of the sphere, it acts like an antenna, and
the wave induces a voltage in the metal.This voltage ... data. An example of this is when an animal is tagged with a
transmitter and the signal is collected and data is gathered over a period
of time to be interpreted at a later date.
Mon...
designing a wireless network phần 4 pptx
... for maintaining
IP addresses, you can get the details necessary to obtain a range. In
North America, South America, the Caribbean, and sub-Saharan
Africa, the organization responsible is the Address ... depleted.
One measure to conserve address space is called Variable Length
Subnet Mask (VLSM).What is an address mask? The default address mask
is represented in Table 3. 3. (Remember that...
designing a wireless network phần 7 ppt
... functional
boundary of the warehouse naturally makes it a separate subdomain.The
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152_wan_07 6/21/01 3: 25 PM Page 239
234 Chapter 7 • Designing a Wireless Industrial Network: Retail Case ... Office
Office
Office
Break
Room
AP
AP
152_wan_06 6/21/01 3: 24 PM Page 219
Designing a Wireless Enterprise Network: Hospital Case Study • Chapter 6 225
Place the direc...
how to cheat at securing a wireless network phần 3 pptx
... William A. Arbaugh and Arunesh
Mishra, An Initial Security Analysis of the IEEE 802.1x Standard, the authors discuss
how one-way authentication and other weaknesses made 802.1X vulnerable to man-
in-the-middle ...
A colleague of mine was given the task of breaking into a wireless network at a
rather sensitive and secure facility as part of an authorized penetration test activity.
B...
designing a wireless network phần 1 pot
... Home Wireless
Marketplace 32 7
A Proposed Solution for the Future 32 9
Lessons Learned 33 0
Summary 33 2
Solutions Fast Track 33 2
Frequently Asked Questions 33 5
Designing a Wireless Network Fast Track ... 299
Chapter 9 Designing a Wireless Home
Network: Home Office Case Study 30 1
Introduction 30 2
Advantages of a Home Network 30 2
Advantages of a Wireless...
designing a wireless network phần 5 pot
... Optical wireless data rates and maximum distance capabilities
are affected by visibility conditions, and by weather conditions
such as fog and rain.
; Optical wireless has very high data rates ... Voice/DATA
3G - Broadband
Voice/DATA
3G - Interoperable
Broadband Voice/DATA
(cdma ONE or
IS-9 5a)
(IS-95b)
152_wan_04 6/22/01 3: 35 PM Page 152
Identifying Evolving Wireless Technologies an...
designing a wireless network phần 6 potx
... their
greatest weaknesses.The same can be said when examining the attributes
of a wireless network. Both mobility and ease of access are touted as
some of the greatest characteristics available when ... characteristics that are
unique and beneficial to implementation—as well as those that make
this medium cumbersome and awkward to manage. Equally important is
the ability to leverage these...
designing a wireless network phần 8 ppsx
... academic areas of
the campus. At this time, only three academic areas are addressed.The
planned network must be easy to adapt as these areas of study increase or
change. For example, the Math and ... Athletic department may
have functional groups of coaches, players, and the press.The
Administrative department may designate a Financial functional group, as
well as Student Records and Mana...
designing a wireless network phần 9 potx
... of raw data passed through a link or
network and includes both overhead signaling data as well as user
data.Throughput refers to the actual amount of user data passed
through the link or network.
Q: ... (Wireless)
Unfinished Basement
Stairs
and
Hall
Stairs
and
Hall
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Designing a Wireless Home Network: Home Office Case Study • Chapter 9 31 5...
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