HELP NEEDED! topic: Wireless Networking •What do wireless clients use to identif
ID: 3767084 • Letter: H
Question
HELP NEEDED!
topic: Wireless Networking
•What do wireless clients use to identify a specific wireless access point?
•How do multiple access points identify themselves as part of the same network?
•What are the differences between 802.11a and 802.11g specifications? •Devices that support the 802.11g standards are typically compatible with which other wireless standard?
•How does MIMO differ from channel bonding?
Prepare a 350- to 1,050-word paper that answers fully discusses the topic questions Format your paper consistent with APA guidelines.
Explanation / Answer
A) Wireless clients use the following to identify a specific wireless access point:
B)Multiple access points identify themselves as part of the same network by Multi-AP Roaming Network Background
Wireless clients just assume that all APs(access points) with the same SSID are configured similarly and are all just different points of access to the same underlying wired network. A client will scan all channels looking for APs publishing the SSID it wants, and will pick whichever one suits its needs best (usually that means whichever one shows the highest signal strength).
Once on the network, clients stay with the same AP as long as it is meeting the client's needs (i.e. as long as its signal strength is above a "good enough" threshold). If the client later thinks it could be better off with another AP on that network, it will do periodic scans of all channels looking for other APs publishing that SSID. If a scan turns up a candidate AP that is better than the AP it is currently on, it will automatically roam to the other AP, usually without so much as a missed frame. they will use the same SSID all over the network,
C)The differences between 802.11a and 802.11g are:
802.11a: In 1999 IEEE released the 802.11a amendment to the original standard. 802.11a uses the same core protocol as the original standard, but operates in 5 GHz band, and uses a frequency-division multiplexing scheme that produces a maximum data rate of 54 Mbps. However, at the about same time 802.11a was created, the 802.11b specification was in development, and 802.11b signals are not absorbed as easily by walls and other solid objects in their path.
802.11g: In 2003 the 802.11g standard was released. It uses both the 2.4 GHz and 5 GHz band, uses the same frequency-division multiplexing scheme as 802.11a, and produces a maximum data rate of 54 Mbps. It has built-in backward compatibility with 802.11b and can achieve the speed of 802.11a. Because of its higher speed the 802.11g standard is quickly gaining popularity.
The 802.11b and 802.11g Wi-Fi networking standards are generally compatible. An 802.11b router / access point will work with 802.11g network adapters and vice versa
D) the diffeerences between MIMO and Channel bonding are:
The multiple-input, multiple-output (MIMO) approach is a compelling one that addresses the wireless communication challenges of signal fading, increasing interference, and limited spectrum. MIMO multiplies data throughput, and provides for a simultaneous increase in range and reliability, all without consuming extra radio frequency.
MIMO is a multi-dimensional approach that transmits and receives two or more unique data streams through one radio channel whereby the system delivers two or more times the data rate per channel. More than one coherent radio up-converter and antenna are used to transmit the multiple signals, and more than one coherent radio down-converter and antenna receive the multiple signals. With MIMO, the maximum data rate per channel grows linearly with the number of data streams transmitted in the same channel.
Channel Bonding-
Assuming the channels are available, Channel bonding multiplies throughput by combining two or more radio channels.
The differencees between them are:
Though channel bonding increases throughput and capacity, it may reduce range slightly. MIMO enhances all three performance attributes simultaneously. And while channel bonding increases throughput by consuming more bandwidth, MIMO increases spectral efficiency, multiplying throughput in the same bandwidth.
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