TRENDnet TEW-303PI Manual - Page 84

Basic Rate, Beacon, Bridge, Browser, Channel, CSMA/CA, CSMA/CD

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Basic Rate ? the fixed transmitted and receiving data rate allowed by the AP with the value 1,2,5.5, 11 and 22 Mbps for selection. Beacon ? A beacon is a packet broadcast by the Access Point to keep the network synchronized. Included in a beacon are information such as wireless LAN service area, the AP address, the Broadcast destination addresses, time stamp, Delivery Traffic Indicator Maps, and the Traffic Indicator Message (TIM). Bit ? A binary digit, which is either -0 or -1 for value, is the smallest unit for data. Bridge ? An internetworking function that incorporates the lowest 2 layers of the OSI network protocol model. Browser ? An application program that enables one to read the content and interact in the World Wide Web or Intranet. BSS ? BSS stands for "Basic Service Set". It is an Access Point and all the LAN PCs that associated with it. Channel? The bandwidth which wireless Radio operates is divided into several segments, which we call them "Channels". AP and the client stations that it associated work in one of the channels. CSMA/CA ? In local area networking, this is the CSMA technique that combines slotted time-division multiplexing with carrier sense multiple access /collision detection (CSMA/CD) to avoid having collisions occur a second time. This works best if the time allocated is short compared to packet length and if the number of situations is small. CSMA/CD ? Carrier Sense Multiple Access/Collision Detection, which is a LAN access method used in Ethernet. When a device wants to gain access to the network, it checks to see if the network is quiet (senses the carrier). If it is not, it waits a random amount of time before retrying. If the network is quiet and two devices access the line at exactly the same time, their signals collide. When the collision is detected, they both back off and wait a random amount of time before retrying. DHCP ? Dynamic Host Configuration Protocol, which is a protocol that lets network administrator s manage and allocate Internet Protocol (IP) addresses in a network. Every computer has to have an IP address in order to communicate with each other in a TCP/IP based infrastructure network. Without DHCP, each computer must be entered in manually the IP address. DHCP enables the network administrators to assign the IP from a central location and each computer receives an IP address upon plugged with the Ethernet cable everywhere on the network. DSSS ? Direct Sequence Spread Spectrum. DSSS generates a redundant bit pattern for each bit to be transmitted. This bit pattern is called a chip (or chipping code). The longer the chip, the greater the probability that the original data can be recovered. Even 84

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84
Basic Rate
?
the fixed transmitted and receiving data rate allowed by the AP with the
value 1,2,5.5, 11 and 22 Mbps for selection.
Beacon
?
A beacon is a packet broadcast by the Access Point to keep the network
synchronized.
Included in a beacon are information such as wireless LAN service area,
the AP address, the Broadcast destination addresses, time stamp, Delivery Traffic
Indicator Maps, and the Traffic Indicator Message (TIM).
Bit
?
A binary digit, which is either -0 or -1 for value, is the smallest unit for data.
Bridge
?
An internetworking function that incorporates the lowest 2 layers of the OSI
network protocol model.
Browser
?
An application program that enables one to read the content and interact in
the World Wide Web or Intranet.
BSS
?
BSS stands for “Basic Service Set”. It is an Access Point and all the LAN PCs
that associated with it.
Channel
?
The bandwidth which wireless Radio operates is divided into several
segments, which we call them “Channels”.
AP and the client stations that it
associated work in one of the channels.
CSMA/CA
? In local area networking, this is the CSMA technique that combines
slotted time-division multiplexing with carrier sense multiple access /collision detection
(CSMA/CD) to avoid having collisions occur a second time.
This works best if the
time allocated is short compared to packet length and if the number of situations is
small.
CSMA/CD
?
Carrier Sense Multiple Access/Collision Detection, which is a LAN
access method used in Ethernet.
When a device wants to gain access to the network, it
checks to see if the network is quiet (senses the carrier). If it is not, it waits a random
amount of time before retrying.
If the network is quiet and two devices access the line
at exactly the same time, their signals collide.
When the collision is detected, they
both back off and wait a random amount of time before retrying.
DHCP
?
Dynamic Host Configuration Protocol, which is a protocol that lets network
administrators manage and allocate Internet Protocol (IP) addresses in a network.
Every computer has to have an IP address in order to communicate with each other in a
TCP/IP based infrastructure network. Without DHCP, each computer must be entered
in manually the IP address.
DHCP enables the network administrators to assign the IP
from a central location and each computer receives an IP address upon plugged with the
Ethernet cable everywhere on the network.
DSSS
?
Direct Sequence Spread Spectrum.
DSSS generates a redundant bit pattern
for each bit to be transmitted. This bit pattern is called a chip (or chipping code). The
longer the chip, the greater the probability that the original data can be recovered. Even