Digital cellular networks

Chapter 5 - Wireless security. After studying this chapter you will be able to understand: Wireless concepts, Securing digital cellular telephony, wireless application protocol, wireless transport layer security, hardening wireless local area networks, IEEE 802.11, wired equivalent privacy (WEP).

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Principles Circuit switching designed for voice Resources dedicated to a particular call Much of the time a data connection is idle Data rate is fixed Both ends must operate at the same rate

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GSM is a Second Generation (2G) digital radio cellular network Time Division Multiplexing / Multiple access TDM/TDMA) are employed .Capacity necessary to transmit appropriate data signals between two access points creating an interface to the network

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GSM (Global System for Mobile Communications, originally Groupe Spécial Mobile), is a standard set developed by the European Telecommunications Standards Institute (ETSI) to describe technologies for second generation (2G) digital cellular networks. Developed as a replacement for first generation (1G) analog cellular networks, the GSM standard originally described a digital, circuit switched network optimized for full duplex voice telephony.

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GSM (Global System for Mobile Communications), is a standard set developed by the European Telecommunications Standards Institute (ETSI) to describe technologies for second generation digital cellular networks. Developed as a replacement for first generation analog cellular networks, the GSM standard originally described a digital, circuit switched network optimized for full duplex voice telephony. The standard was expanded over time to include first circuit switched data transport, then packet data transport via GPRS (General Packet Radio Services)....

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