3g
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Transcript of 3g
CONTENTS
INTRODUCTION
ADVANCES IN PHYSICAL LAYER OF
3G COMMUNICATION
CROSS LAYER DESIGN
QUALITY OF SERVICE(QOS)
PROVISIONING
WIRELESS SECURITY
CONCLUSION
Third generation (3G) mobile
communication systems have
already been commercially
deployed in certain parts of the
world to meet the initial demand for
high data rate packet-based
services including wireless internet
access.
ADVANCES IN
PHYSICAL LAYER OF
3G SERVICES
Major research challenges
MIMO
Cooperative diversity
Multicarrier CDMA
COOPERATIVE
DIVERSITY
COOPERATIVE DIVERSITY
MULTICARRIER CDMA
CROSS LAYER DESIGN
QUALITY OF SERVICES (QOS)
PROVISIONING
WIRELESS SECURITY
Continued growth in cell-phone
penetration.
Emergence of new class of ‘data-centric’
wireless devices.
Battery technology not keeping pace, but
innovative solutions are emerging.
Traditional optimization in wireless
technology reaching its theoretical limits.
Topology, not technology, will provide the
next leap in air interface capacity.
CONCLUSI
ON
