Question Paper: Wireless Network Question Paper - May 17 - Electronics and Telecom Engineering (Semester 8) - Mumbai University (MU)

Wireless Network - May 17

MU Electronics and Telecom Engineering (Semester 8)

Total marks: --
Total time: --
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

1(a) What are the components of sensor nodes?
5 marks 6405

1(b) Explain CSMA/CA technique.
5 marks 9489

1(c) Explain the concept of trusted device with reference to Bluetooth.
5 marks 9554

1(d) Discuss two evolution paths for the GSM to offer 3G services.
5 marks 9490

2(a) Using the following data of for a GSM network, estimate the voice and traffic per subscriber. If there are 40 BTS sites, calculate voice and data traffic per cell.
Subscriber usage per month: 150 minutes
Day per month: 24 Buy hours per day: 6 Allocated spectrum: 4.8 MHz
Frequency reuse plan: 4/12
RF channel width: 200kHz(full rate)
Present number of subscribers in a zone: 50,000 Subscriber growth per year: 5%
Network roll-over period: 4year
Number of packet calls per session (NPCS): 5 (see Figure)
Number of packets within a packet call (NPP):25
Reading time between packet calls (Tr): 120s
Packet size (NBP): 480 bytes
Time interval between two packets inside a packet call (Tint): 0.01 s
Total packet service holding time during one hour( T tot): 3000 s
Busy hour packet sessions per subscriber:0.15
Penetration of data subscriber: 25%
Data rate of each subscriber: 48kbps
Packet transmission time: 10 s
10 marks 9545

2(b) Explain the ZigBee technology. Discuss different network topologies that are supported in ZigBee.
10 marks 6388

3(a) Discuss WiMAX in detail and compare its performance with Wi-fi.
10 marks 6400

3(b) Explain link budget analysis and requirements of wireless Network.
10 marks 9499

4(a) Explain transmit diversity present in forward link of Cdma 2000.
10 marks 9548

4(b) What are sensor network management design issues? Elaborate any one with example.
10 marks 6426

5(a) Explain Bluetooth security features and Gives its protocol architecture
10 marks 6387

5(b) Draw the neat block diagram of UMTS architecture Explain all interfaces.
10 marks 9549

6(a) Write short notes on : HSDPA
10 marks 9488

6(b) Write short notes on : RFID
10 marks 6395

modified 7 months ago by gravatar for Yashbeer Yashbeer170 written 15 months ago by gravatar for aniketbab1 aniketbab10
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