GSM World

GSM World

Abstract:

We are experiencing exponential growth rates in wireless system, increasing awareness about the wireless in society, and deregulation of former wired systems. While traditional communication systems deals with fixed networks, wireless systems raises a new set of questions, techniques and solutions. The trend trends in wireless system create an ever-increasing demand for well-educated communication engineers who understands the developments and possibilities of wireless systems.

Through the medium of this paper we sincerely try to explain GSM (Global System for Mobile Communication) wireless system, which is considered as heart of mobile communication. We have chosen this subject because what we see today is only the beginning of the mobile communication era. There are many researches going on around the world in the field of mobile communication.

The first section of the paper focuses on the wireless system and types of wireless systems existing today. The next section starts with the typical GSM system with the history of the same and the services offered by GSM. In next section we have explained the architecture of GSM following the protocols used by GSM system. The fourth section gives the in depth explanation of calling technique by the same. The succeeding section contains the different handover mechanisms used. The sixth section of this paper gives the security concerns present in the GSM system. The final section looks for the future developments.

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