CS455

MOBILE COMPUTING

Objectives

• To understand the fundamentals of Mobile communication systems.
• To understand the different multiplexing scheme.
• To understand the significance of different layers in mobile system

 

Outcomes

• Understand the concepts of mobile and wireless communications.
• Apply the knowledge gained in exploring, application and protocol development.

 

Unit – I

Introduction to Wireless Networks – Applications – History – Simplified Reference Model – Wireless transmission – Frequencies – Signals – Antennas – Signal propagation – Multiplexing – Modulation – Spread spectrum – Cellular Systems.

 

Unit – II

MAC – Motivation – SDMA, FDMA, TDMA, CDMA –Telecommunication Systems – GSM – DECT – TETRA – UMTS – IMT-2000.

 

Unit – III

Wireless LAN – Infrared Vs Radio transmission – Infrastructure – Adhoc Network – 802.11 – HIPERLAN – Bluetooth – Mobile Network Layer – Mobile IP – Dynamic Host Configuration Protocol.

 

Unit – IV

Adhoc Networks – Mobile Transport Layer – Traditional TCP – Indirect TCP – Snooping TCP – Mobile TCP – Fast retransmit / Fast recovery – Transmission / Time-out freezing – Selective retransmission – Transaction Oriented TCP.

 

Unit – V

Support for Mobility – File Systems – WWW – Wireless Application Protocol.

 

TEXT BOOKS

• Jochen Schiller, “Mobile Communications”, Pearson Education, Asia Publications, 2000.

 

REFERENCE

• William Stallings, “Wireless Communication and Networks”.