Mobile VoIP, HSDPA, 4 G Technology

Mobile VoIP: 

VoIP (Voice Over Internet Protocol) is a very popular and growing facet of the communication market. Using an Internet connection, you can stream phone calls to anywhere on the planet without using a mobile provider.

A new study from a London-based research firm claims that mobile voice-over-IP will become a mainstream form of communication by the end of 2012, based on rapid growth of voice-over-3G wireless users. Disruptive Analysis said its research shows mobile VoIP will eclipse fixed-mobile convergence services that use dual-mode handsets with voice-over-WiFi capabilities. VoIP has become popular largely because of the cost advantages to consumers over traditional telepone networks. VoIP calls can be placed across the Internet. Most Internet connections are charged using a flat fee structure. Using the Internet connection for both data traffic and voice calls can allow consumers to get rid of one monthly payment. In addition, VoIP plans do not charge a per-minute fee for long distance. For International calling, the monetary savings to the consumer from switching to VoIP technology can be enormous. Today, Skype, TruPhone and a company called Fring already offer VoIP over 3G smartphones and 3G-enabled laptops allowing users to communicate with other VoIP users via the Internet. This service is expected to provide customers with a cheaper alternative to connecting calls via GSM in the near future.

HSDPA :

High-Speed Downlink Packet Access (HSDPA) is a 3G (third generation) mobile telephony communications protocol in the High-Speed Packet Access (HSPA) family, which allows networks based on Universal Mobile Telecommunications System (UMTS) to have higher data transfer speeds and capacity. Current HSDPA deployments support down-link speeds of 1.8, 3.6, 7.2 and 14.4 Mbit/s. Further speed increases are planned for the near future.

4G Technology :

What is fourth generation (4G) mobile?

4G also called as Fourth-Generation Communications System, is a term used to describe the next step in wireless communications. A 4G system can provide a comprehensive IP solution where voice, data and streamed multimedia can be provided to users on an “Anytime, Anywhere” basis. The data transfer rates are also much higher than previous generations.

Objectives of 4G are:

1. 4G will be a fully IP-based integrated system.
2. This will be capable of providing 100 Mbit/s and 1 Gbit/s speeds both indoors and outdoors.
3. It can provide premium quality and high security.
4. 4G offer all types of services at an affordable cost.

4G is developed to provide high quality of service (QoS) and rate requirements set by forthcoming applications such as wireless broadband access, Multimedia Messaging, Video Chat, Mobile TV, High definition TV content, DVB, minimal service like voice and data, and other streaming services.

4G technology allow high-quality smooth video transmission. It will enable fast downloading of full-length songs or music pieces in real time.

The business and popularity of 4Gmobiles is predicted to be very vast. On an average, by 2009, this 4Gmobile market will be over $400B and it will dominate the wireless communications, and its converged system will replace most conventional wireless infrastructure.

What will the data rates be for 4G?

At present the download speed for mobile Internet connections range from 9.6 kbit/s for 2G cellular, up to 200 kbit/s (nominally 384 kbps) for the new Vodafone 3G service (mentioned above). However, in actual use the data rates are usually slower, especially in crowded areas, or when the network is "congested".

4G mobile data transmission rates are planned to be up to 20 megabits per second That’s about 10-20 times faster than standard ASDL services.

In terms of connection seeds, 4G will be about 200 times faster than present 2G mobile data rates, and about 10 times faster than 3G broadband mobile. 3G data rates are currently 2Mbit/sec, which is very fast compared to 2G's 9.6Kbit/sec