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10EC81

USN

Eighth Semester B.E. Degree Examination, a)

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munication

Time: 3 hrs.

Max. Marks:100

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PART

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Draw a neat diagram, showing typical wireless system components and describe each

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Explain with relevant diagrams, how cell splitting and cell sectoring enable capacity b.

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expansion.

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component in brief. (12 Marks) Draw and explain the structure of MSISDN, IMSI and IMEI identification numbers. (08 Marks)

a. Classify and name GSM logical channels and explain their major functions. (10 Marks) b. Draw and describe the structure of TDMA frame, multiframe, superframe and hyperframe.

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Speciflu their time

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(10 Marks)

PART _ B

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Explain Authentication and Ciphering mode setting. Operations in GSM call setup operation with relevant flow diagrams. (12 Marks) b. Explain lntra BSC Handover in GSM, with neat figure. (08 Marks)

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Explain Network Nodes in CDMA 2000 wireless system, with neat diagram. Explain spectrum spreading operation in CDMA channels.

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(10 Marks)

Explain how Radio Resource Management and Power Management are done in Wireless Communication Systems. (10 Marks)

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Describe AMPS mobile phone initialization steps, with neat time diagram. (10 Marks) b. Describe AMPS handoff operation, with neat diagram showing the time sequences of events, signals and messages used. (10 Marks)

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Note: Answer any FIVE full questions, selecting atleast TWO questions from dE

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Wireless

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b.

Discuss various coding techniques used in wireless communication. Discuss various path loss models.

(12 Marks) (08 Marks) (12 Marks) (08 Marks)

Draw and describe Frame strucfure for general and management MAC frame format in 802.1 1. Also explain the 2 byte control field. (12 Marks) Draw and explain typical piconet and scatter net in Bluetooth. How one device can act as

both master and slave in scattemets?

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(08 Marks)

Wireless Communication Jan 2016 (2010 Scheme).pdf

Explain Network Nodes in CDMA 2000 wireless system, with neat diagram. (12 Marks). 7. 'r.l'8 Draw and describe Frame strucfure for general and management ...

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