Posted inMobile Computing
UMTS
The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks…
Posted inMobile Computing
GPRS
INTRODUCTION: General packet radio service (GPRS) is a packet oriented mobile data service available to users of…
Posted inMobile Computing
SECURITY
GSM offers several security services using confidential information stored in the AuC and in the…
Posted inMobile Computing
MOBILITY MANAGEMENT
Mobility management is one of the major functions of a GSM or a UMTS network…
Posted inMobile Computing
ROUTING
A satellite system together with gateways and fixed terrestrial networks as shown in Figure 5.1…
Posted inMobile Computing
FREQUENCY ALLOCATION
Radio transmission can take place using many different frequency bands. Each frequency band exhibits certain…
Posted inMobile Computing
CONNECTION ESTABLISHMENT
The number dialed to reach a mobile subscriber (MSISDN) contains no information at all about…
Posted inMobile Computing
GSM – Protocol Stack
GSM architecture is a layered model that is designed to allow communications between two different…
Posted inMobile Computing
What is GSM?
If you are in Europe or Asia and using a mobile phone, then most probably…
Posted inMobile Computing
Spread Spectrum Multiple Access
Spread spectrum multiple access (SSMA) uses signals which have a transmission bandwidth whose magnitude is…