subject: Basics About Latest Technology In Mobile Communications [print this page] This is a guide about basics about technology in the mobile communications. From cordless phones in 1980's to mobile application development and Smart phones, the cellular technology is gone through wonderful change.
Mobile Communication Generations
The 1st Generation (1G) for mobile communication was initiated in late 1970s; and was mainly used for the voice transfer. With early 1990s, the 2nd Generation (2G) system was introduced and was developed to the 2.5G including GSM, CDMA, and TDMA. All these were utilized for data and voice. Next mobile communications generation is 3rd Generation (3G). It offers data speeds of 384 kbps-2 Mbps with wireless interfaces including CDMA, GSM, and TDMA.
Mobile Access Technologies
FDMA (Frequency Division Multiple Access)
First-generation mobile access technique; FDMA utilizes different frequencies with each call. For instance, in case of four stations, every of them will get their frequency. Therefore, no interference is there between them. It reduces interference and limits total users.
TDMA (Time Division Multiple Access)
TDMA assigns unique time slots for every user in every channel, allowing numerous users and mobile application developers for accessing radio frequency not including anybody's interference. Every mobile discussion utilizes particular frequency time slots.
CDMA (Code Division Multiple Access)
Introduced by Qualcomm in the year 1995, CDMA swiftly became amongst world's fastest-emergent wireless technologies. 3G CDMA provides more capability for the voice traffic having high-speed data potential, therefore many service suppliers are building and upgrading it with mobile application developers.
GSM (Global System for Mobile communications)
Developed with TDMA protocol at Europe, the GSM is standard technology worldwide for the mobile communications. Benefit of GSM is it offers higher security, worldwide established technology standards as well as better sound quality. For GSM phone workings, it needs SIM (Subscriber Identity Module), the card, which contains the information of telephone account. Therefore, Indian GSM mobile phone may be utilized in the USA as well as other countries with mobile application development.
GPRS
The GPRS is a short form of General Packet Radio Services. It is a development of the GSM technology, which integrates IP technology and GSM. GPRS provides high-speed connectivity of the Net. Therefore you may check the email while moving on as well as surf Web with higher speeds through mobile application development with the help of mobile application developers.
WAP
In todays technical age, people require any-time access of the Net while moving. That is where the WAP plays an important role. It offers Internet access for the cell phones. This is standard for the wireless protocols, which are independent for service providers. For displaying the Web content, cell phones have to have WAP browsers through mobile application development with the help of mobile application developers. These days, the cell phones frequently come with GPRS and WAP technology.
EDGE
The EDGE (Enhanced Data GSM Environment) crossing point is developed specially for meeting bandwidth requirements of 3G. Supported by Ericsson, this provides high-speed information transfers on GSM networks having software upgrade for the handset. The EDGE permits speed of maximum 384 kbps.
