Pinnacle - Hitting the highest Point
DISCLAIMER :
This website [Pinnacle.withme.us] claims no credit for any information, news and/or images featured on this site unless otherwise noted. All visual content is copyright to its respectful owners. Information on this site may contain errors or inaccuracies too - we do not make warranty as to the correctness or reliability of the site's content. If you own rights to any of the images, and do not wish them to appear on this site, please leave a private message and it will deleted immediately.

By clicking on " LOGIN " below:
- You acknowledge to have fully read the Term of Service while you registering of this FORUM;
- You commit yourself to respect unreservedly these current rules;
- You grant the moderators of this forum the right to delete, move or edit any discussion subject at any moment.


Please visit http://datanetops.blogspot.com for more info.





 
HomeHome  FAQFAQ  PortalPortal   BLOG  RegisterRegister  Log inLog in  
Never provide your password to anyone, even if this person claims to be a forum moderator or administrator. For more information about this forum please read FAQ or visit datanetops.blogspot.com
Search
 
 

Display results as :
 
Rechercher Advanced Search
Latest topics
» Which Technology is Better: GSM or CDMA?
Mon Aug 23, 2010 1:14 pm by Boazdexter

» Cisco Router Simulator Software
Sat Jul 10, 2010 2:46 pm by Enforcer

» Ceragon Software
Sat Jul 10, 2010 2:42 pm by Enforcer

» Chariot v4.3.1212 for Windows (c) NetiQ
Sat Jul 10, 2010 2:36 pm by Enforcer

» IP Security Software
Sat Jul 10, 2010 1:01 pm by Enforcer

» Linux Application software
Wed Mar 31, 2010 11:19 am by Enforcer


Top posters
Enforcer
 
Congressman
 
jemscaburn
 
Boazdexter
 

Share | 
 

 Which Technology is Better: GSM or CDMA?

View previous topic View next topic Go down 
AuthorMessage
Congressman
Recruit
Recruit


Posts : 3
Join date : 2010-01-30

PostSubject: Which Technology is Better: GSM or CDMA?   Thu Feb 04, 2010 9:51 pm

Source: Hardwaresecret.com | Author: Alessandra Carneiro

Before deciding which technology is superior, let's talk a little more about these two tecnologies:


  • CDMA: stands for Code Division Multiple Access. Both data and voice are separated from signals using codes and then transmited using a wide frequency range. Because of this, there are more space left for data transfer (this was one of the reasons why CDMA is the prefered technology for the 3G generation, which is broadband access and the use of big multimedia messages). 14% of the worldwide market goes to CDMA. For the 3G generation CDMA uses 1x EV-DO and EV-DV. It has a lot of users in Asia, specially in South Korea.
  • GSM: stands for Global System Mobile. Even though it is sold as "the latest technology" in several countries, this technology is older than CDMA (and also TDMA). But keep in mind that this doesn't mean that GSM is inferior or worse than CDMA. Roaming readiness and fraud prevention are two major advantages from this technology. GSM is the most used cell phone technology in the world, with 73% of the worldwide market. It has a very strong presence in Europe.

TDMA technology is the less used from the three main digital technologies (GSM, CDMA and TDMA) and we think it will gradually be replaced to CDMA or GSM. That's why the GSM vs CDMA war. At one corner, GSM operators say it is better "because it uses a SIM chip, it is the most used technology worldwide, it is more secure and it is more advanced". On the other corner, CDMA followers say it is better "because it is the 3G generation chosen technology and GSM will migrate to CDMA since CDMA is more advanced..."

But which one of these statements are correct? Acordingly to Nokia, "this discussion is not about technology anymore, but about market". We think this is the best way to describe the war between these two cell phone technologies.

In the beginning, GSM was in fact superior. It had more services and allowed more data transfer. But CDMA, facing the advantages of the competitor standard, soon delivered the same features found on GSM. Nowadays, it is not possible to say that GSM services are better than CDMA. Multimedia messages, video, high-speed Internet access, digital camera and even PDA function are some of the features we can found on both technologies. The new CDMA 1XRTT technology, which previews what G3 cell phones will bring, is more advanced than EDGE, technology from the beginning of 3G generation, allowing higher transfer rates.

Even the GSM SIM card advantage, that allows you to change your cell phone and keep your phone list, is being surplaced by some CDMA operators with a service that allows you to store your phone book on the operator's database, allowing you to recover your phone book even if your cell phone is stolen (which is not possible with GSM, since if your cell phone is stolen, your SIM card will be stolen together). Notice that recently a new accessory called SIM backup was released, which allows you to backup the data stored in your SIM card. Also some GSM operators are offering a similar backup service.

So, nowadays both technologies are equiparated in technology, but this picture won't be like that in the future. Afterall, CDMA evolution ground is wider and in a few years it will be superior than GSM. This means that GSM operators will disapear? Not at all. They will migrate over CDMA and the war will continue, because the existing CDMA operators chose to use 1xEV-DO and1XEV-DV technologies for their 3G network and the existing GSM operators have opted for a different technology, called WCDMA. Also, even though the current GSM operators will migrate to WCDMA, they still can use their existing GSM network. So users won't feel anything special when the operators shift to the new cell generation (3G), independently from the technology they choose.

Glossary


  • AMPS: stands for Advanced Mobile Phone Service. Analog cell system.
  • TDMA: stands for Time Division Multiple Access. It works by dividing the spectrum into frequency channels and each user uses each channel for a specific time, to avoid interference.
  • CDMA 1XRTT: Second generation technology (2.5G, actually) which allows data transfers up to 144 Kbps.
  • EDGE: stands for Enhanced Data Rates for Global Evolution. Technology promoted by GSM operators. Before migrating to WCDMA, EDGE will allow third generation data and voice access with 384 kbps transfer rate.
  • EV-DO: Third generation (3G) from CDMA 1xEV-DO technology. "EV" comes from and "DO" from data-only. It uses a second channel, of 1.25 MHz, exclusively for data transmission. Some countries are already running this standard. In the USA, Verizon and Sprint started this technology in 2004. This tecnology allows hi-speed Internet access (2.4 Mbps) using the cell phone or using a wireless connection from a laptop or PDA.
  • EV-DV: Evolution of EV-DO, but still under development. "DV" comes from data-and-voice. It uses the same channel for trasmiting data and voice. The transfer rate can reach 5.2 Mbps.
  • WCDMA: Wideband CDMA. Third generation technology that will be adopted by GSM operators. Its European version is known as UMTS (Universal Mobile Telecommunications System). It can reach transfer rates up to 2 Mbps.

Back to top Go down
Boazdexter
Recruit
Recruit


Posts : 2
Join date : 2010-08-23

PostSubject: gsm   Mon Aug 23, 2010 1:14 pm

hi i think gsm is best
because i faced so many problems with cdma
and so many errors and balance problems there




_________________
"Want to get-on Google's first page and loads of traffic to your website? Hire a SEO Specialist from Ocean Groups seo pecialist
"
Back to top Go down
 
Which Technology is Better: GSM or CDMA?
View previous topic View next topic Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
Pinnacle - Hitting the highest Point :: Community Update :: Technical Help and Troubleshooting :: Other Technical Topic-
Jump to:  
Free forum | © phpBB | Free forum support | Contact | Report an abuse | Forumotion.com