dccn-cellular telephone and satellite networks and global system for mobile communication
TRANSCRIPT
Data Communication and Computer Networks
[EEE 314]
Mubashir Husain RehmaniMubashir Husain Rehmani
Assistant Professor
Department of Electrical Engineering
COMSATS Institute of Information Technology,
Wah Cantt, Pakistan
Cellular Telephone
And Satellite And Satellite
Networks
GSM
Global System for Mobile Global System for Mobile Communication
Cellular System
GSM Architecture
GSM Architecture
GSM Architecture
Overview of Cellular System
GSM Architecture� Mobile Station
� SIM: Subscribe Identity Module� Mobile Equipment (ME)
� Base station Subsystem� Mobile station (MS)� Base Transceiver Station (BTS)Base Transceiver Station (BTS)� Base Station Controllers (BSC)
� Network Switching Subsystem (NSS)� Mobile Switching Center (MSC)� Home Location Register (HLR)� Visitor Location Register (VLR)� Authentication center (AUC)
� Operation Support Subsystem� Operation Maintenance Centers
Mobile Equipment (ME)
BTS
Mobile Switching Center (MSC)
Frequency Reuse
Frequency Reuse
AMPS
AMPS is an analog cellular phone
system using FDMA.
Cellular Bands in AMPS
Second Generation Cellular
Phone System
GSM Bands
GSM is a digital cellular phone system
using TDMA and FDMA.using TDMA and FDMA.
The main goal of third-generation
cellular telephony is to provide
universal personal communication.universal personal communication.
Satellite Networks ‘Orbits’
Satellite Categories
Satellite Orbits Altitude
Geo Synchronous Satellites
GPS
LEO Satellite System