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					                                                                                                                         14/11/2011 03:53
                 blog.bestlaptopbattery.co.uk



                5 Things You Need To Know About Update
                or Improve Your Wi-Fi Network


                C
                      loudTag: Improve , Wi-Fi , Network , Dell ins-         new features are available for recent Wi-Fi devices,
                      piron 1720 battery , Hp probook 4310s battery          and how they can improve the services you provide.
                      , Dell d630 battery
                                                                                                1. Improved Speeds

                                                                             Wi-Fi speeds have improved from the maximum
                                                                             of 11Mbps with 802.11b to as much as 300Mbps
                                                                             or more with the 802.11n standard. Since signal
                                                                             strength can have a major effect on speed, creating
                                                                             better coverage areas through multiple access points
                                                                             (APs) and improved antennae can do as much to
                                                                             improve speed as a standard with higher through-
                                                                             put. There are a couple of caveats with the higher
                                                                             speeds. First, 802.11n has gone from 50Mbps to
                                                                             300Mbps through the use of techniques including
                                                                             multiple-channel multiplexing, but those may not be
                                                                             compatible from brand to brand, causing devices to
                                                                             default back to the base level throughput. Further,
                                                                             there are two frequency bands, 2.4GHz and 5GHz.
                                                                             Many APs will use both frequencies, but doing so
                                                                             on a single AP can reduce throughput.




                Laptops used to be the only devices on the com-
                pany’s wireless network. But Wi-Fi has become a
                ubiquitous standard used by a host of devices–inclu-
joliprint




                ding desktop PCs, laptops, netbooks, tablets, smart-
                phones, printers, storage devices, and projectors.

                To determine whether you need to update or im-
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                prove your Wi-Fi network, you need to know which



                                    http://blog.bestlaptopbattery.co.uk/5-things-you-need-to-know-about-update-or-improve-your-wi-fi-network/



                                                                                                                                       Page 1
                                                                                                                         14/11/2011 03:53
                 blog.bestlaptopbattery.co.uk


                5 Things You Need To Know About Update or Improve Your Wi-Fi Network


                             2. Improved Coverage                            good idea to enable additional security. Many APs
                                                                             allow for multiple groups of users, so you can set
                                                                             up a separate guest network that allows access to
                                                                             the Internet, but not to local resources such as file
                                                                             servers and printers.

                                                                             Security standards have become easier to set up
                                                                             and harder to crack over the last few years. The
                                                                             newest standards can automatically exchange keys
                                                                             with new devices on the Wi-Fi network, but may not
                                                                             work as easily with all devices with older operating
                                                                             systems such as Windows XP.

                                                                                          4. Multiple Streams and QoS

                                                                                                         When there are dozens
                                                                                                          or hundreds of devices
                                                                                                          on the network, with
                                                                                                          some doing other bu-
                                                                                                          siness-related     tasks
                                                                                                          while others stream re-
                Many APs have multiple antennae, often configured                                         creational videos, it’s
                in arrays (most commonly 3×3), allowing for impro-           useful to guarantee that the important applications
                ved coverage in areas near walls, better range, and          get sufficient bandwidth. Some access points can
                stronger reception at longer ranges. The multiple            set up quality of service (QoS) to ensure that speci-
                antennae can typically be used in one of two modes,          fic applications or protocols receive the bandwidth
                either as an array or as separate antennae for the           they need, while throttling or restricing inessential
                two different frequencies. You may want to have              applications.
                different APs for the two frequencies to improve
                coverage and optimize throughput. Using different                             5. Management Tools
                APs can make larger gains in throughput than using
                multiple APs set up for dual frequencies.                    One of the reasons an enterprise-class AP can cost
                                                                             several times more than a wireless router adverti-
                See Also: How to protect your Android phones on              sing the same speed is that it offers additional fea-
                public Wi-Fi by www.batteryfast.co.uk                        tures. Such management tools can display all APs
                                                                             on your network; track which devices and users
                              3. Security Features                           are connecting; identify users, devices or APs that
                                                                             shouldn’t be there; and find unauthorized devices
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                Every administrator should set up security on APs.           to help you determine whether someone brought
                In fact, some vendors, including D-Link and Belkin,          in a device from home or if a hacker has penetrated
                have changed the default setup of username admin             your network.
                with a blank password to a setup with a random
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                username and password out of the box. It’s still a



                                    http://blog.bestlaptopbattery.co.uk/5-things-you-need-to-know-about-update-or-improve-your-wi-fi-network/



                                                                                                                                       Page 2
                                                                                                                         14/11/2011 03:53
                 blog.bestlaptopbattery.co.uk


                5 Things You Need To Know About Update or Improve Your Wi-Fi Network


                Newer devices can handle higher throughput; better
                coverage, signal strength, and security; and even
                segregate traffic to protect your wired network from
                unauthorized users or bandwidth-hogging traffic. If
                you’re getting complaints about the network from
                users of Wi-Fi devices, review the new devices that
                are available, and see which ones will best fit your
                needs.
joliprint
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Description: Laptops used to be the only devices on the company’s wireless network. But Wi-Fi has become a ubiquitous standard used by a host of devices–including desktop PCs, laptops, netbooks, tablets, smartphones, printers, storage devices, and projectors.