Wireless Communication
final year ECE students
UNIT I
1. Define Multiple Access. Explain the types of MA techniques used in Wireless communication
system.
2. Explain how frequency reusing is achieved in cellular systems and also explain the various
methods for improving the capacity of a cellular system.
3. Explain in detail about the types and requirements of services used in wireless systems.
UNIT II
1. Explain the various propagation mechanisms adopted in wireless communication channels.
2. Explain in detail about the channel classification adopted in wireless propagation channels.
3. Explain in detail about the propagation effects with mobile radio
UNIT III
1. Explain the structure of a wireless communication link with a neat block diagram.
2. Explain the principle, operation, signals, constellation diagram, transmitter and receiver of
MSK system
3. Explain the generation, detection, signal space diagram, bit error probability and power
spectra of QPSK.
UNIT IV
1. Explain the principle of diversity and explain the different diversity techniques.
2. Explain in detail about the stochastic models for speech.
3. Explain the linear and non linear equalizers along with the differences.
UNIT V
1. Explain OFDM concept in detail and also explain the implementation of transceivers in ofdm
system
2. Explain forward & reverse channel parameters of IS-95 CDMA
3. Discuss the features and services of GSM and Explain the GSM system architecture with neat
sketch
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