designing a wireless network phần 10 pps
designing a wireless network phần 10 pps
... 29–30
antennas, 49–55
antenna gain, 71
antenna point bridge placements,
218
quarter-wavelength momopole
antennas, 51
phased array antennas, 51
planar array antennas, 53–54
receiver antennas, 48
transmitter ... 48
transmitter antennas, 48
AP Manager software, 260
apparent horizon, 42
application layer
and managing, 105 –111, 113
monitoring tools and, 105
and network Address translation
(N...
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 ... Connectivity
SW/
RTR
SW/
RTR
SW/
RTR
SW/
RTR
SW/
RTR
Staff AP
Staff AP
Staff AP
Staff AP
100 Mb
100 Mb
100 Mb
100 Mb
Elevator
Shaft
Wiring
Closet
Student AP
Student AP
Student AP
Student AP...
designing a wireless network phần 1 pot
... technology.
Around the same time that Faraday worked with electromagnetism,
an American professor named Joseph Henry became the first person to
transmit a practical electrical signal. As a watchmaker, he constructed
batteries ... 21
Chapter 2 Radio Elements
and Frequency Spectrums 23
Introduction 24
Transmitting Radio Signals Over EM Waves 24
Anatomy of a Waveform 25
Modulating a Radi...
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 3 ppt
... 100 T
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1P 10P 100 P 1E
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10E 100 E
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1Z
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10Z
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100 Z
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1Y
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Audible Range
Hz
Hz
The ... mounted flat on a wall, yet still have the proper-
ties and gain of a directional antenna. Figure 2.17 shows a planar ar...
designing a wireless network phần 4 pptx
... 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 ... pri-
vate addressing schemes, usually referred to as internal networks,are
designed that way because a majority of the traffic on that network is
local traffic, meaning that it does not leave...
designing a wireless network phần 5 pot
... can
authenticate a wireless device against a list of MAC addresses.This list
could reside locally on the AP, or the authentication could be checked
against a database of allowed MACs located on the ... received and
will transmit it again.
All this takes place at the MAC layer. Noticing that an ACK has not
been received, the sending unit is able to grab the radio medium before
any othe...
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 ... with an issue before
escalating it?
■
How will an escalation take place?
■
Which procedures will be automated?
■
What tools are available to which organization?
■
What security changes a...
designing a wireless network phần 7 ppt
... functional
boundary of the warehouse naturally makes it a separate subdomain.The
www.syngress.com
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 directional...
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: ... Page 296
300 Chapter 8 • Designing a Wireless Campus Network: University Case Study
A: Signal power and antenna type are the two primary factors in the
range of the signal. Noise...
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