From Wireless Communications Security

In the previous chapter, security considerations and mechanisms of second generation mobile systems were discussed. Here, we discuss the security of third generation systems (3G) and briefly introduce fourth genereation wireless communication systems (4G). 3G systems bring to the user multimedia communications, mobile commerce, among many other applications, in the wireless environment.

6.1 3G Wireless Communications Systems

Third generation mobile communication systems are called by several different acronyms 3G, UMTS, IMT2000 and W-CDMA, to name a few. The promises of third generation mobile phones are fast Internet surfing, advanced value- added services and video telephony. 3G includes capabilities such as enhanced multimedia (voice, data, and video), a wide range of services (i. e. e-mail, paging, fax, video-conferencing, and web browsing), broad bandwidth, high data transmission speed (up to 2 Mbps), routing flexibility (repeater, satellite, LAN), operation at 2 GHz transmit and receive frequencies, and roaming capability throughout Europe, Asia and North America.

3G technology improves upon 2G systems in many ways. For example, it moves towards packet switching from circuit switching. Packet switching uses the communication system more effectively, therefore boosting its capacity. Packet switching also enables users to be online continuously. Via careful use of the frequency spectrum and inventive coding methods, 3G technology is supposed to achieve bit rates up to 2 Mbps. Essential qualities and characteristics of a 3G wireless system are:

  • Bit rates reaching up to 2 Mbps;

  • Variable bit rate to offer bandwidth on demand;

  • Multiplexing of services with different quality requirements on a single...

Products & Services
3G, UMTS, and EDGE Chips
Third generation (3G) cellular communication chips include UMTS and EDGE chips. Universal mobile telecommunication system (UMTS) chips provide high-speed data access. Enhanced data rates for GSM evolution (EDGE) chips make GSM implementation easier.
Analog Modem-to-Cellular Converters
Analog modem-to-cellular converters allow legacy equipment with built-in analog modems to connect to the cellular data networks by emulating the traditional dial-up PSTN network.
IC Interfaces
IC interfaces are semiconductor chips that are used to control and manage the sharing of information between devices.
Network and Communication Chips
Network and communication chips are semiconductor integrated circuits (IC) used in telecommunication devices and systems.
Cellular Modems
Cellular modems are special types of modem used to modulate analog signals, such as telephone signals, to be transmitted using cellular networks. The modulated signal is used for phone or data communication with smart phones and similar device

Topics of Interest

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8.8 Universal Mobile Telecommunications Services (UMTS) (3GPPTS25.215, 2002; 3GPP TS25.301, 2002; 3GPP TS25.215, 2002) The third generation (3G) wireless networks succeeded the Global System for...

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Objectives Upon completion of this chapter, you should be able to Describe the concept of the HSCSD network. Discuss the evolution of EGPRS and EDGE. Understand what UMTS is all about. Describe the...