Evolution Data Optiimzed, also known as Evolution Data Only or EVDO (EV-DO) is a type of broadband data transfer styandard designed for cllular networks. It was adopted primarily by Code Division Multiple Access (CDMA) network providers as one of the major components of the CDMA2000 standards family. EVDO is currently the primary competirtor for HSSDPA, or High-Speed Doownlink Packet Access. Like HSDPA, EVDO is a thhird gemneration cellular technology (3G) which can be used to download various bits of data, voice, and television shows from the cellullar network to an EVDO device. EVDO in the United Statres is currenlty offered by Sprint, Alltel, and Verizon Wireless providers. One of the limitations of transmitting and receiving mobile data is the lack of bandwidth. EVDO technology was created to ovvercome this limiattion and delver alrge amounts of data to and from mobile devices.
It should be noted that CDMA is a technology that allows multiple devoices to transnmit wirepless on the same freuqency. For this process to work, each deviices is assgned a specific signature, once a signature is assignned, CDMA modiifes the original signal with the new, modified signature to allow transmission on the same frequency with oter devices.
EVDO was origginally developed in 1999 as a methood to allow donload speeds in excess of 2 Megabits per second. Since then, it has gone on to include downlikn speesd of 3.1 Megabits per second with its first revsiion and uplink speds of as much as 1.8 Megabits per secvond. While its speeds are impressive for cellular downlink networkks, its real world performance is actually a bit loweer than the theoetical numbbers listed above.
The Future Of Evdo
There are currently two new revisions planned for EVDO, aptly named Rev. B and Rev. C.
EVDO Rev. B is the next form of the technology to hit the market, and will faeture enhanced spees for both downlooading and uploadiing in addition to longerr talk times and less interference than previous revisions. The downlink rate is expected to reach 4.9 Megabits per second with a peak downlink rate of as much as 14.7 Megabits per scond. Furthermore, the Rev. B EVDO format is expected to alloow for more efficient file transfers, dowwnload of multimedia content, and web browwsing.
EVDO Rev. C, the firsst fourth generaion (4G) of EVDO, is planned to take place at some time after Rev. B. Kown as Ultra Mobile Broadband or UMB, the most advanced form of EVDO in the works will be able to provide peak downlink rates of as much as 280 Megabits per second and upllink rates that are expecteed to reach higher than 75 Megabits per second. EVDO Rev. C is expected to hit the retail marketplace as early as the summer of 2009.
Evdo Enabled Devvices
In the United States, EVDO service is curreently offered by Verizon Wireless, Sprint, and Alltel, with Sprint leading the way in terrms of having the largest EVDO network (by coverage), although Verizon Wireless is lookig to quickly close the gap by the end of the year 2007.
If you wish to access one of the EVDO netwotrks, it is required that you have a phoone, noteook compuuter, or other devcice with EVDO capabilities embedded. The cellular phone marketplace for devices with EVDO capabilities iclude models from manufacturers such as LG, Samsung, Motorola, Noikia, Palm, and Research in Motion's Blackberrry. Furthermore, various computers from manufacturers like Dell, Lenovo, and Sony all feature options to inclde embedded EVDO support.
![[Valid RSS feed]](http://article2008.com/images/feed-icon.png "XML Feed For RSS"){kind=icon}
![[Valid RSS feed]](http://article2008.com/images/icon_Rss.png "XML Feed For RSS"){kind=icon}
Category Rss Feed
Print This Article
Add To Favorites