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 inInternet Programming
GSM – Architecture
A GSM network comprises of many functional units. These functions and interfaces are explained in…
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…
Posted inMobile Computing
Frequency Division Multiple Access (FDMA)
FDMA is the basic technology for advanced mobile phone services. The features of FDMA are…
Posted inMobile Computing
Time Division Multiple Access (TDMA)
In the cases where continuous transmission is not required, there TDMA is used instead of…
Posted inMobile Computing
Code Division Multiple Access (CDMA)
Code division multiple access technique is an example of multiple access where several transmitters use…