December 17, 2011


Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. (a) Explain the terms GSM & GPRS.
(b) Write notes on Digital cellular systems. [8+8]

2. (a) For a cellular system, If blocking probability is 40% and assuming each subscriber generates 0.1 Erlangs traffic load, find the no. of. subscribers if no. of channels are
i. 1
ii. 5
iii. 10
iv. 20
v. 100. Use Erlang B model charts.
(b) In a total 33MHz of BW allocated to a particular FDD system which uses two 25kHZ simplex channels to provide full duplex voice & control channels. Compute the no. of channels available per cell if a system uses:
i. four cell reuse
ii. seven cell reuse
iii. 12 cell reuse.
1 MHz of allocated spectrum is dedicated to control channels. Determine a equitable distribution of control & Voice channels in each cell for each of three systems. [8+8]

3. Explain the designing of the directional antenna, for k=4, k=12 and k=7 with all suitable values explaining each of them, consider a noise margin of 6dB. [16]

4. (a) From the free space propagation model derive the equation for received power.
(b) Discuss Lee model of point to point propagation. [6+10]

5. (a) What are the different synthesis of sum pattern? Explain them briefly.
(b) What are the antennas used at cellsite? Explain them. [8+8]

6. (a) What type of messages are received to the set up channels when the mobile unit monitors strongest signal strength?
(b) What are the advantages of Reuse-partition scheme?
(c) What is channel sharing and channel borrowing?7. (a) What are the different types of handoffs? Explain how to implement them?
(b) Define a dropped call rate and explain how it differ from blocked call? [10+6]

8. (a) Explain the significance of SIM in Mobile station.
(b) What is the function of transcoder rate adoption unit in BSS?
(c) What are the different kinds of downlink common channels?



Post a Comment

Get Syllabus in your Mail


Accenture Admission Notice - 2010 Admission Notification Anna University Anna University Chennai Anna University Question Papers Anna University Trichy Apparel Technology and Management Aptitude Questions Arts and Science Colleges Biomedical Engineering C and CPP Ebooks Calicut University CBSE Question papers Civil Engineering Civil Service Exams Colleges in India Colleges Result Computer Science Engineering Core Jobs CS R2008 CSE CSIR NET EBooks Download ECE EEE EIE Electives Electrical and Electronics Engineering Electronics and communication Electronics and Instrumentation Engineering Engineering Engineering Colleges in Maharashtra Engineering Colleges in TamilNadu Engineering Admissions Engineering Colleges Engineering Colleges in Karnataka Engineering Jobs Engineering Syllabus Entrance Exam Dates Entrance Exam Results Entrance Examination Exam Time Table Experiencer First Year Syllabus Freshers Full Time Jobs Government jobs in india Hardware and Networking Jobs Hotel Management and Catering Technology IGNOU Information Technology INTEVIEW QUESTIONS IT Jobs JNTU Question Papers Jobs in Bangalore Jobs in Chennai Jobs in Coimbatore Jobs in Delhi Jobs in Hyderabad Jobs in India Jobs in Kerala Jobs in Noida Jobs in Tamilnadu Jobs in TATA Karnataka Educations Lab Manuals Mechanical Engineering Medical Colleges Placement Papers Plus 2 Preparation for exams Private Jobs in India Question Papers Question Papers Download Results Announcement Semester 1 Semester 2 Semester 3 Semester 4 Semester 5 Semester 6 Semester 7 Semester 8 Syllabus Syllabus Download Tamil Movie TCS Placement Papers Teaching Jobs TECH MAHINDRA Textile Technology Top colleges University Results UPSC VICEVESVARAYA TECHNOLOGICAL UNIVERSITY waec Walk-in Interview Web Designers



Anna university Engineering Syllabus

Earn Money From Online

Government jobs in india

Admission Notification

Total Pageviews


Privacy Policy use third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by these companies, click here.