Mobile Computing And Wireless Communication (2170710)

BE | Semester 7 
  Winter - 2018|26/11/2018
Total Marks 70

Q1 (a) What is ARQ? What is importance of it?

Q1 (b) What is noise? Discuss briefly types of noise and its effect on transmission signal.

Q1 (c) Compare and contrast OSI model and TCP/IP protocol architecture.

Q2 (a) What do you mean by channel capacity? What are the factors that affect it?

Q2 (b) Differentiate circuit switching and packet switching

Q2 (c) What is Mobile IP? Explain discovery, registration and tunneling in Mobile IP.

OR

Q2 (c) What is Direct Sequence Spread Spectrum technology? How does it work in CDMA technology?

Q3 (a) Compare GSM and CDMA technology.

Q3 (b) Explain various transmission media w.r.t. merit, demerits and application of each.

Q3 (c) Explain functional architecture of GSM system and types of services provided by GSM.

OR

Q3 (a) Define IMSI, IMEI and MS-ISDN and write significance of each

Q3 (b) What is Handover? Explain types of it in brief

Q3 (c) Explain IEEE 802.11 architecture and services

Q4 (a) Define following. 1) Fading  2) Modulation

Q4 (b) What are HLR and VLR? Describe its functions in call routing and roaming

Q4 (c) Draw and explain Bluetooth Protocol Architecture.

OR

Q4 (a) Define ASK, FSK & PSK.

Q4 (b) Describe Error Control Coding in brief.

Q4 (c) Discuss the network elements in GPRS that are different from GSM. Also discuss applications and limitations of GPRS

Q5 (a) Explain Android TextView control with an example.

Q5 (b) How billing and charging functions are handled in GPRS.

Q5 (c) Explain different layouts in Android

OR

Q5 (a) Explain Android ButtonView control with an example.

Q5 (b) Discuss briefly: Limitations of GPRS

Q5 (c) Explain Android architecture with diagram.