Dr. A.P.J. Abdul Kalam University BE VI SEM (EC) Cellular Mobile Communication [EC602] June 2021 Question Paper

Dr. A.P.J. Abdul Kalam University

Bachelor of Engineering

Sixth Semester Examination, June-2021

Cellular Mobile Communication [EC602]

Branch-EC

Time: 3:00 Hrs Max Marks 70

Note: Attempt any five questions. All questions carry equal marks.

Q.1 (a) Define the term frequency management.

(b) Discuss the traffic load on a set up channel and on voice channels. Define

channel assignment?

Q.2 (a) Explain GSM architecture. What is layer modeling? Explain.

(b) Explain modulation, characteristic call processing and hand off

procedures for CDMA

Q.3 (a) Explain basic cellular system and its component.

(b) Describe the performance criteria of mobile telephone system

Q.4 (a) Explain the propagation of land to mobile transmission over water.

(b) Describe the antennas used at cell site. Discuss unique situations of cell

site antenna

Q.5 (a) Explain the near end far interference in one cell and in the two system

cell.

(b) What are antennas? Write various types of antennas.

Q.6 (a) Why do you need cell splitting? Explain various cell splitting techniques

(b) How will you increase the cell coverage for a noise limited system?

Q.7 (a) Explain point to point model for obtaining path loss in obstructive

condition.

(b) What is co-channel interference? Derive the expression for co-channel

interference.

Q.8 Write short note on:-

(i) Foliage loss

(ii) Mobile antenna

(iii) Dropped cell rate formula

Scanned Copies:

Share This