Sunday, June 24, 2007

802.11g

Users to benefit from higher data rates, extended reach and backward compatibility with 802.11b, plus forward compatibility to 802.11a. In 2000 the market for wireless local-area networks (WLANs) grew with the introduction of new products complying with the 802.11a and 802.11b standards. These two standards are designed to mutually coexist, allowing both wireless networks to share the same airspace in a physical location. Both types of products are in general use today. The pending ratification of a third standard, 802.11g, will combine some of the features of both its predecessors. Although all three standards are able to operate in the same physical space, certain combinations provide advantages and perform better than others, due to inevitable interference in the frequency spectrum, and the techniques designed to deal with it. At present, 802.11a/b dual band WLANs offer the best and safest implementation based on performance, network capacity, and scalability. Customers will choose standards-based, interoperable solutions that will both protect their existing investment while enabling an upgrade path to high performance WLAN connectivity.

Prior to the recent selection of the IEEE 802.11g draft standard for wireless local area networks (WLANs) operating up to54 megabits per second (Mbps) in the 2.4 gigahertz (GHz) band, the market was served by two non-compatible specifications, 802.11b and 802.11a. Faced with market availability of both products in late 2001, some end users were potentially confused about which technology would evolve to meet their future needs, and some networking manufacturers were unsure about which specification would be best to direct their developmental efforts. There is much to be understood about the new 802.11g draft standard, including its history, specifications and implications in the WLAN market, but this much is certain: it combines the best of the existing 802.11b and 802.11a standards, and promises a harmonized future that will encourage continued and rapid market development in 802.11 WLANs. In addition, users will benefit from higher data rates, extended range and compatibility with already installed Wi-Fi? devices.

As one might guess, 802.11g is a third wireless standard related to 802.11a and 802.11b. The 802.11g standard, which is nearing ratification by the IEEE, can be considered a mixture of both existing standards. It will use the same 2.4-GHzradio spectrum as current 802.11b equipment, but with the higher data rates, packet structure, and modulation technology of 802.11a. As such, 802.11g is sometimes viewed as an upgrade path for existing 802.11b networks, although certain technical limitations may not ideally suit it for this role. All three wireless network standards, 802.11a, b, and g, can be used together in the same local installation. In some cases, total network throughput will increase as more client devices come on line. However, some combinations will actually reduce throughput because of interference between these technologies. The total performance of these networks is sometimes less than the sum of their parts. In brief, 802.11g will be a compatible faster alter-native to 802.11b. It achieves this by operating in the same 2.4-GHzfrequency band as 802.11b, but with the faster data rates of 802.11a devices. That means that 802.11b and 802.11gdevices will communicate on the same network. An 802.11b client can talk to an 802.11g access point, and vice versa. New 802.11g devices can be introduced into an existing 802.11b network at any time. In such cases, the newer 802.11gdevices will reduce their speed and act just like 802.11b devices transmitting at 11 Mbps. Part of the 802.11g standard defines the complex negotiations that allow these two wireless networks to operate together, but these details are handled automatically by the hardware and software/firmware.

20 comments:

Violet said...

You write very well.

Anonymous said...

Can anyone recommend the top performing MSP system for a small IT service company like mine? Does anyone use Kaseya.com or GFI.com? How do they compare to these guys I found recently: [url=http://www.n-able.com] N-able N-central desktop support
[/url] ? What is your best take in cost vs performance among those three? I need a good advice please... Thanks in advance!

Anonymous said...

youth dating prayer [url=http://loveepicentre.com/]speed dating in suffolk county[/url] free online dating sites http://loveepicentre.com/ picture piano london singles night

Anonymous said...

drug and alcohol learning games [url=http://usadrugstoretoday.com/catalogue/e.htm]No prescription online pharmacy[/url] university of connect medical center directions http://usadrugstoretoday.com/products/mevacor.htm photos on child anxiety http://usadrugstoretoday.com/products/cleocin.htm
math anxiety historical perspective [url=http://usadrugstoretoday.com/products/cardura.htm]cardura[/url] brown pills for bladder infection relief [url=http://usadrugstoretoday.com/categories/colesterolo.htm]smoke flap stove[/url]

Anonymous said...

http://makemillions.bizland.com/forum/viewtopic.php?p=124175#124175 http://forum.christian-dating.com.au/viewtopic.php?f=17&t=51845 http://rockflowerpress.com/forum/viewtopic.php?f=9&t=41108 http://punkknits.com/forum/index.php?topic=263812.new#new
http://www.choices-school.com/phpBB3/viewtopic.php?f=2&t=145122 http://newpc.irbb.ir/viewtopic.php?f=5&t=18089 http://booksbydona.com/phpBB3/viewtopic.php?f=4&t=237120 http://tinnedmail.zoastertech.com/forums/viewtopic.php?f=13&t=46263
http://bb.thulasidas.com/viewtopic.php?f=4&t=156645 http://www.obragraficaenmadrid.com/foro//viewtopic.php?p=31689#31689 http://www.glamisfriends.com/forum/viewtopic.php?f=7&t=270259

Anonymous said...

heart of the ocean earings [url=http://usadrugstoretoday.com/products/levitra.htm]levitra[/url] blood glucose meters whole blood or plasma equivalent http://usadrugstoretoday.com/products/remeron.htm violinists great depression http://usadrugstoretoday.com/products/cleocin-gel.htm
katrina cat with heart shaped nose [url=http://usadrugstoretoday.com/products/shuddha-guggulu.htm]shuddha guggulu[/url] pink breast cancer ribbon [url=http://usadrugstoretoday.com/products/acai.htm]drug reaction eosinophilia systemic symptoms[/url]

Anonymous said...

weight loss and diet pills [url=http://usadrugstoretoday.com/products/levothroid.htm]levothroid[/url] cosmetic vitamin c http://usadrugstoretoday.com/categories/la-presion-arterial.htm nurse drug book http://usadrugstoretoday.com/products/xenical.htm
sinus node in the heart [url=http://usadrugstoretoday.com/products/clozaril.htm]clozaril[/url] leg muscle knot [url=http://usadrugstoretoday.com/categories/anti-pilz.htm]st bernards medical center online baby gallery[/url]

Anonymous said...

http://healthportalonline.in/carvedilol/zygenerics-carvedilol
[url=http://healthportalonline.in/cipro/cipro-picture]kentucky drug alcohol statues[/url] what happens when a woman takes viagra [url=http://healthportalonline.in/cephalexin/animal-cephalexin]animal cephalexin[/url]
pharmacy aruba http://healthportalonline.in/cilostazol/using-diprosone-cream-and-cyklokapron-together
[url=http://healthportalonline.in/casodex/casodex-pricing]drug bust waldo county maine[/url] date rape drug articles in hong kong [url=http://healthportalonline.in/carvedilol/carvedilol-cause-of-dry-mouth]carvedilol cause of dry mouth[/url]
teen drug use 2008 http://healthportalonline.in/cholesterol/msm-cholesterol
[url=http://healthportalonline.in/cardizem/cardizem-sa]how to bottle on drug test[/url] will adderall affect the results of drug testing [url=http://healthportalonline.in/calan/pantless-calan]pantless calan[/url] drug kingpin is a woman [url=http://healthportalonline.in/calan/nos-calan-gaeaf]nos calan gaeaf[/url]

Anonymous said...

space a travel phone numbers http://greatadventures.in/plane-tickets/cheap-plane-tickets-to-england how to wire a 7 pin fof a travel trailer
[url=http://greatadventures.in/hotel/newyork-newyork-hotel]the pizza challenge travel channel[/url] world of travel game [url=http://greatadventures.in/tourism/tourism-industry-sector-council]tourism industry sector council[/url]
china travel shepard yonge street toronto http://greatadventures.in/motel/motel-3
[url=http://greatadventures.in/tourist/tourist-interest-hong-kong]travel jobs wages[/url] disney world in orlando travel deal [url=http://greatadventures.in/adventure/non-download-free-adventure-and-quest-games]non download free adventure and quest games[/url]
greyhound hound bus travel http://greatadventures.in/plane-tickets/plane-tickets-to-argentina tours travel italy [url=http://greatadventures.in/cruise/cruise-agent-association]cruise agent association[/url]

Anonymous said...

deer creek auto salvage ohio http://latestcarnews.in/lancia/lancia-beta-spider wikpedia mercedes sl history
[url=http://latestcarnews.in/toyota/colin-costello-toyota]alabama automobile loans[/url] volkswagen diagnostic scanner [url=http://latestcarnews.in/yamaha/yamaha-wave-venture-parts]yamaha wave venture parts[/url]
adrienne mercedes http://latestcarnews.in/yamaha/yamaha-115-outboard-crank
[url=http://latestcarnews.in/romeo/early-alfa-romeo-gtv]nano automobile[/url] stop windows xp from auto creating printers [url=http://latestcarnews.in/top-fuel/fuel-remote-control-cars]fuel remote control cars[/url]
custom auto grills http://latestcarnews.in/radiator/how-to-turn-down-heat-radiator
[url=http://latestcarnews.in/plymouth/common-man-spa-plymouth-nh]rubber floor mats automobile[/url] lindsey volkswagen [url=http://latestcarnews.in/supermoto/supermoto-schedule]supermoto schedule[/url]

Anonymous said...

french teen fashion designs http://topcitystyle.com/?action=products&product_id=1957 clothes for under dry suits [url=http://topcitystyle.com/multi-casual-shirts-color71.html]pointe shoes[/url] equator clothes processor
http://topcitystyle.com/women-page19.html macbeth bonham united brown shoes [url=http://topcitystyle.com/on-sale-v-neck-type2.html]vinegar rinsing clothes[/url]

Anonymous said...

isabel da silva santos fashion http://topcitystyle.com/cream-yellow-women-color211.html neos overshoes [url=http://topcitystyle.com/?action=products&product_id=2256]designer handbag knock off purse[/url] etonics shoes
http://topcitystyle.com/goffo-jack-brand74.html nude male clothes female [url=http://topcitystyle.com/dolce-amp-gabbana-one-ply-windbreaker-jackets-brand2.html]wholesale baby clothes[/url]

Anonymous said...

amateur black college http://theporncollection.in/free-hentai/heart-wig-hentai
[url=http://theporncollection.in/porn-galleries/hardcore-porn-and-movie-trailers]hentai anime adult japanese[/url] amateur radio licences [url=http://theporncollection.in/orgasm/teen-tickling-orgasm]teen tickling orgasm[/url]
adult space cartoon http://theporncollection.in/best-porn/nasty-black-girls-xxx-porn
[url=http://theporncollection.in/gay-movie/gay-interracial-porn-gallery]free samples xxx movies[/url] free thumbnails pics porn [url=http://theporncollection.in/mature-woman/mature-women-bent-over]mature women bent over[/url]
sexy nerd gils http://theporncollection.in/gay-movie/gay-bathroom-holes
[url=http://theporncollection.in/gay-anal/gay-sex-videos-arab]adult virals[/url] adult humor myspace graphics [url=http://theporncollection.in/orgy/celbrity-orgy-password]celbrity orgy password[/url]
the best hentai http://theporncollection.in/hentai-porn/free-3d-games-hentai
[url=http://theporncollection.in/best-porn/romain-de-marchi-porn]naruto flash hentai[/url] guavaberry virgin [url=http://theporncollection.in/orgasm/teen-tickling-orgasm]teen tickling orgasm[/url]

Anonymous said...

black widow adult movie http://xwe.in/erotic-gay/erotic-literarure
[url=http://xwe.in/toon/toon-fuck-galleries-king-of-the-hill]adult naughty christmas e cards[/url] free porn with stories [url=http://xwe.in/fetish/panty-fetish-dating]panty fetish dating[/url]
hentai koonago http://xwe.in/hcg-oral/oral-b-precision-clean-bursh-heads
[url=http://xwe.in/blow/breaking-benjamin-blow-mw-away]dildo fuke[/url] scat anal dvd [url=http://xwe.in/ass-video/men-oral-ass-sucking]men oral ass sucking[/url]
football helmet adult size http://xwe.in/shemale/shemale-female-sex-fuck
[url=http://xwe.in/gay-boy/free-gay-men-xxx-streams]canine dildo movie[/url] cambridge adult porn [url=http://xwe.in/shemales/shemales-bulges]shemales bulges[/url]
adult add drugs http://xwe.in/bbw/mexican-bbw-tgp
[url=http://xwe.in/bbw/bbw-and-montreal]big black women porn pictures[/url] completley free adult dating websites [url=http://xwe.in/adult-video/adult-cheerleader-stories]adult cheerleader stories[/url]

Anonymous said...

cheap travel guide http://xwg.in/airline/sunwing-airline baby trend travel system review
[url=http://xwg.in/map/united-states-map-with-meanings]beavercreek travel[/url] costa rica travel advisary [url=http://xwg.in/lufthansa/embraer-175-safety-record]embraer 175 safety record[/url]
forest lake travel mn http://xwg.in/tourism/incoming-tourism
[url=http://xwg.in/flight/check-flight-reservation-htm]travel challenge and wall street journal[/url] travel agency puerto galera philippines [url=http://xwg.in/flight/product-id-for-flight-simulator-x-deluxe]product id for flight simulator x deluxe[/url]
travel maps illinois http://xwg.in/travel/an-established-or-selected-course-of-travel-or-action travel to nova scotia [url=http://xwg.in/flight/flight-simulator-acceleration-crack]flight simulator acceleration crack[/url]

Anonymous said...

sissy boys wearing girls clothes http://luxefashion.us/dark-brown-jackets-amp-sweatshirts-color29.html customized shoes [url=http://luxefashion.us/iceberg-pirates-of-the-caribbean-funky-t-shirt--item1794.html]nightvision seethrough clothes[/url] giada de laurentiis naked
http://luxefashion.us/multicolored-men-color13.html gucci shoes [url=http://luxefashion.us/american-eagle-outfitters-t-shirts-for-men-brand77.html]tods shoes[/url]

Anonymous said...

john edwards views on health care [url=http://usadrugstoretoday.com/products/cleocin.htm]cleocin[/url] nail enhancement south africa http://usadrugstoretoday.com/products/compazine.htm
signs of child abuse or is it stress [url=http://usadrugstoretoday.com/products/provigrax.htm]provigrax[/url] royal bank international student loans for medical students [url=http://usadrugstoretoday.com/catalogue/r.htm ]weight loss workout plan [/url] the immaculate heart of mary
chronic muscle soremess [url=http://usadrugstoretoday.com/products/inderal.htm]inderal[/url] how to make tea cups that are edible http://usadrugstoretoday.com/products/prilosec.htm
infections causing high blood pressure [url=http://usadrugstoretoday.com/products/combivent.htm]combivent[/url] leaves for medicine [url=http://usadrugstoretoday.com/catalogue/o.htm ]percentage drugs teenagers [/url] calcium and limestone

Anonymous said...

replacement seat for 2005 dodge 1500 http://xwm.in/saleen/used-saleen-mustang-for-sale edmonton auto parts
[url=http://xwm.in/gmc/gmc-sonoma-low-idle-problem]mercedes benz of beverly hills[/url] salon de auto montreal quebec [url=http://xwm.in/aprilia/aprilia-motorbikes]aprilia motorbikes[/url]
fonctionnementmandataire automobile http://xwm.in/harley/racing-cams-for-harley-davidson
[url=http://xwm.in/aprilia/aprilia-rsv-2005-radial-brakes]reviews and reports on 1994 dodge spirit[/url] mercedes star emblem for ml 320 [url=http://xwm.in/chevrolet/chevrolet-duramax-power-upgrades]chevrolet duramax power upgrades[/url]
mercedes m104 http://xwm.in/porsche/porsche-cars-north-america
[url=http://xwm.in/buell/ryan-buell-childhood-apparition]dodge spokesmodel[/url] first automobile works michoacan [url=http://xwm.in/porsche/porsche-cayenne-fuel-line-noise]porsche cayenne fuel line noise[/url]

Anonymous said...

sports betting trends http://lwv.in/jackpot/north-carolina-lottery-jackpot-amount-for-sept-8 river gambling cruise
[url=http://lwv.in/lottery/ga-land-lottery-maps-gwinnett]carribbean islands with casinos[/url] ace bingo plane [url=http://lwv.in/lottery/sc-lottery-picks]sc lottery picks[/url]
betting exchange http://lwv.in/keno/best-online-casino-online-video-keno
[url=http://lwv.in/jokers/jokers-big]christmas bingo cards free[/url] river wind casino norman [url=http://lwv.in/roulette/roulette-code-in-c]roulette code in c[/url]
bullshit bingo for education educators http://lwv.in/jackpot/bigest-free-bingo-jackpot bingo game party [url=http://lwv.in/casino-playing-cards/trumpet-playing-e-cards]trumpet playing e cards[/url]

Anonymous said...

movie queue ireland netflix patent [url=http://moviestrawberry.com/films/film_beowulf_grendel/]beowulf grendel[/url] twister the movie http://moviestrawberry.com/films/film_tommy/ the disney movie cinderelle analyzed
hook movie script [url=http://moviestrawberry.com/films/film_black_and_white/]black and white[/url] shannon tweed movie preview http://moviestrawberry.com/films/film_house_party_2/ movie about bronte sisters
classic movie clubs [url=http://moviestrawberry.com/films/film_big_bully/]big bully[/url] fractured movie
barnyard the movie pig [url=http://moviestrawberry.com/films/film_last_exit_to_brooklyn/]last exit to brooklyn[/url] movie death proof music http://moviestrawberry.com/films/film_five_across_the_eyes/ movie wav priscilla
really long lesbian sex movie [url=http://moviestrawberry.com/films/film_witness_for_the_prosecution/]witness for the prosecution[/url] the movie the craft http://moviestrawberry.com/films/film_bill/ punisher the movie websites