1. VIT UNIVERSITY :: VELLORE -632014
MOBILE COMMUNICATION
Mobile :

2. Overview of the Lecture
Use-cases, applications
Definition of terms
Challenges, history
Wireless Transmission
frequencies & regulations
signals, antennas, signal propagation
multiplexing, modulation, spread spectrum, cellular system
Media Access
motivation, SDMA, FDMA, TDMA (fixed, Aloha, CSMA, DAMA, PRMA, MACA, collision avoidance, polling), CDMA
Wireless Telecommunication Systems
GSM, HSCSD, GPRS, DECT, TETRA, UMTS, IMT-2000
Satellite Systems
GEO, LEO, MEO, routing, handover

3. Contd.. Broadcast Systems Wireless LANs Network Protocols
DAB, DVB
Wireless LANs
Basic Technology
IEEE a/b/g, .15, Bluetooth
Network Protocols
Mobile IP
Ad-hoc networking
Routing
Transport Protocols
Reliable transmission
Flow control
Quality of Service
Support for Mobility
File systems, WWW, WAP, J2ME, ...

4. Reference Books Mobile Communicaton- Jochen Schiller
Wireless Communication and Networks –
William Stallings
Wireless Communication – Rappaport

5. Definitions
2 kinds of Mobility
USER MOBILITY
DEVICE PORTABILITY

6. Communication Device –Characteristics
FIXED & WIRED
MOBILE & WIRED
FIXED & WIRELESS
MOBILE & WIRELESS

7. APPLICATIONS VEHICLE EMERGENCIES BUSINESS REPLACEMENT OF WIRED NETWORK
INFOTAINMENT
LOCATION AWARE SERVICES

8. MOBILE / WIRELESS DEVICES
SENSOR
EMBEDDED CONTROLLERS
MOBILE PHONES
PDA
LAPTOP

9. OPEN RESEARCH TOPICS INTERFERENCES REGULATIONS & SPECTRUM
LOW BANDWIDTH
HIGH DELAY/LARGE DELAY VARIATION
LOWER SECURITY
AD-HOC NETWORK
ROUTING , SCALABILITY,
RELIABILITY,MOBILITY

10. UMTS, WLAN,
DAB, GSM,
cdma2000, TETRA, ...
ad hoc
Personal Travel Assistant,
DAB, PDA, laptop,
GSM, UMTS, WLAN,
Bluetooth, ...
BACK

11. A simplifiled Reference Model
Application
Application
Transport
Transport
Network
Network
Network
Network
Data Link
Data Link
Data Link
Data Link
Physical
Physical
Physical
Physical
Medium
Radio

12. Contd.. Application layer Transport layer Network layer
Data link layer
Physical layer
service location
new applications, multimedia
congestion and flow control
quality of service
addressing, routing, device location
hand-over
synchronization
media access
multiplexing
Correction of transmission errors
encryption
modulation
interference
attenuation
frequency

13. Total Coverage Chapter 10: Support for Mobility Chapter 9:
Mobile Transport Layer
Chapter 8:
Mobile Network Layer
Chapter 4:
Telecommunication Systems
Chapter 5:
Satellite
Systems
Chapter 6:
Broadcast
Systems
Chapter 7:
Wireless
LAN
Chapter 3:
Medium Access Control
Chapter 2:
Wireless Transmission