Monday, 23 September 2013
abiola omoba technology: Wireless Speed & RangeWhen you buy a pieceof wirel...
abiola omoba technology: Wireless Speed & RangeWhen you buy a pieceof wirel...: Wireless Speed & Range When you buy a piece of wireless network hardware, it will often quote performance figures (i.e., how fast i...
Thursday, 18 July 2013
Wireless Speed & Range
When you buy a piece
of wireless network hardware, it will often quote performance figures (i.e.,
how fast it can transmit data) based on the type of wireless networking
standard it uses, plus any added technological enhancements. In truth,
these performance figures are almost always wildly optimistic.
While the official
speeds of 802.11b, 802.11g, and 802.11n networks are 11, 54, and 270 megabits per second (Mbps) respectively, these figures represent a scenario that.s simply
not attainable in the real world. As a general rule, you should assume that in
a best-case scenario you.ll get roughly one-third of the advertised
performance.
It's also worth noting that a wireless network is by definition a shared network, so the more computers you have connected to a wireless access point the less data each will be able to send and receive. Just as a wireless network's speed can vary greatly, so too can the range. For example, 802.11b and g officially work over a distance of up to 328 feet indoors or 1,312 feet outdoors, but the key term there is "up to". Chances are you won't see anywhere close to those numbers.
As you might expect, the closer you are to an access point, the stronger the signal and the faster the connection speed. The range and speed you get out of wireless network will also depend on the kind of environment in which it operates. And that brings us to the subject of interference.
It's also worth noting that a wireless network is by definition a shared network, so the more computers you have connected to a wireless access point the less data each will be able to send and receive. Just as a wireless network's speed can vary greatly, so too can the range. For example, 802.11b and g officially work over a distance of up to 328 feet indoors or 1,312 feet outdoors, but the key term there is "up to". Chances are you won't see anywhere close to those numbers.
As you might expect, the closer you are to an access point, the stronger the signal and the faster the connection speed. The range and speed you get out of wireless network will also depend on the kind of environment in which it operates. And that brings us to the subject of interference.
Wireless Interference
Interference is an issue
with any form of radio communication, and a wireless network is no exception.
The potential for interference is especially great indoors, where different
types of building materials (concrete, wood, drywall, metal, glass and so on)
can absorb or reflect radio waves, affecting the strength and consistency of a
wireless network's signal. Similarly, devices like microwave ovens and some
cordless phones can cause interference because they operate in the same 2.4
frequency range as 802.11b/g/n networks. You can't avoid interference entirely,
but in most cases it's not significant enough to affect the usability of the
network. When it does, you can usually minimize the interference by relocating
wireless networking hardware or using specialized antennas.....
Data Security on Wireless Networks
In the same way that
all you need to pick up a local radio station is a radio, all anyone needs to
detect a wireless network within nearby range is a wireless-equipped computer.
There's no way to selectively hide the presence of your network from strangers,
but you can prevent unauthorized people from connecting to it, and you can
protect the data traveling across the network from prying eyes. By turning on a
wireless network's encryption feature, you can scramble the data and control
access to the network.
Wireless network hardware supports several standard encryption schemes, but the most common are Wired Equivalent Privacy (WEP), Wi-Fi Protected Access (WPA), and Wi-Fi Protected Access 2 (WPA2). WEP is the oldest and least secure method and should be avoided. WPA and WPA2 are good choices, but provide better protection when you use longer and more complex passwords (all devices on a wireless network must use the same kind of encryption and be configured with the same password).
Unless you intend to
provide public access to your wireless network — and put your business data or
your own personal data at risk — you should consider encryption mandatory.
Friday, 31 May 2013
abiola omoba technology: Do u need a computer repair/networking engineer to...
abiola omoba technology: Do u need a computer repair/networking engineer to...: Do u need a computer repair/networking engineer to handle any computer works in your home without going through any stress, hassle and the...Do u need a computer repair/networking engineer to handle any computer works in your home without going through any stress, hassle and the hustle and bustle of city life. Call any of the numbers below. We'll come to your home and fix anything computer (desktops and laptops) without charging you too much for the work. It's our pleasure doing it. We will come anywhere within Lagos Metropolis to troubleshoot and fix all your computer problems.
Please, feel free to call our service lines: 08032324956, 08094842710
Please, feel free to call our service lines: 08032324956, 08094842710
Do u need a computer repair/networking engineer to handle any computer works in your home without going through any stress, hassle and the hustle and bustle of city life. Call any of the numbers below. We'll come to your home and fix anything computer (desktops and laptops) without charging you too much for the work. It's our pleasure doing it. We will come anywhere within Lagos Metropolis to troubleshoot and fix all your computer problems.
Please, feel free to call our service lines: 08032324956, 08094842710
Please, feel free to call our service lines: 08032324956, 08094842710
Do u need a computer repair/networking engineer to handle any computer works in your home without going through any stress, hassle and the hustle and bustle of city life. Call any of the numbers below. We'll come to your home and fix anything computer (desktops and laptops) without charging you too much for the work. It's our pleasure doing it. We will come anywhere within Lagos Metropolis to troubleshoot and fix all your computer problems.
Please, feel free to call our service lines: 08032324956, 08094842710
Please, feel free to call our service lines: 08032324956, 08094842710
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