What is GSM? GSM is the most popular standard for mobile phones in the world. GSM (Global System for Mobile communication) is a digital mobile telephony system. The first GSM network was launched in 1991 and it is the most successful digital mobile telecommunication system that is widely used in India and other parts of the world. How GSM is working? GSM uses a combination of FDMA and TDMA. The GSM system has an allocation of 50 MHz bandwidth in the 900 MHz frequency band. Using FDMA, this band is…
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Generations of Wireless Technology
Wireless systems and services have undergone a remarkable development, since the first cellular and cordless telephone systems were introduced in the early 1980s. First generation cellular and cordless telephone systems were based on analog FM technology and designed to carry narrow-band circuit switched voice services. Here , entire evolution of wireless technology is named as generations of wireless technology based on the changes are made and new inventions took place in the market. Wireless Generations: 1st Generation (1G) 2nd Generation (2G) 3rd Generation (3G) 4th Generation (4G) 5th Generation (5G)…
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