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  • Anna University : B.E Electronics & Communication Engineering B.E/B.Tech Degree Examination, April/May 2010 Question Papers

    Anna University : B.E Electronics & Communication Engineering B.E/B.Tech Degree Examination, April/May 2010 Question Papers

    QUESTION Paper Code- D2197

    B.E/B.TECH. DEGREE EXAMINATION, APRIL/MAY 2010

    EIGHTH SEMESTER

    ELECTRONICS AND COMMUNICATION ENGINEERING

    EC 1451-MIBILE COMMUNICATION
    (REGULATION 2004)
    (Common to B.E (part time) seventh semester regulation 2005)

    Time:3 hrs Maximum:100 marks

    Answer ALL Questions

    PART A(10*2=20 marks)

    1.List any four advantage of third generation (3G) mobile networks

    2.Write down the formula for co-channel reuse ratio.

    3.What is Doppler shift.

    4.What is meant by coherence bandwidth.

    5.Name the four space diverrsity receptiob technique.

    6.Define absolute bandwith.

    7.what is meant by vocoders.

    8.What is self-jamming in CDMA.

    9.What is the purpose of SIM.

    10.What are the five functional entities of a DECT system.

    PART B (5*16=80 marks)

    11. (a) (i) Explain in detail the various cellular components. (8)

    (ii)Explain the fundamentals of Digital cellular systems. (8)

    OR
    (b) (i) Explain the process of operation of paging systems. (8)

    (ii)Describe the steps involved in making a cellular telephone call (8)

    12. (a) Derive the Impluse response model of a multiplepath channel. (16)
    OR
    (b) Explain in detail about type of small scale fading. (16)

    13. (a)(i)Write a note on RAKE recevier, with block diagram. (10)
    (ii)Explain frequency diversity and time diversity . (6)

    OR
    (b)Explain the concept of minimum shift keying and Gaurion MSK (16)

    14. (a) Explain TDMA and discuss the time division Multiple acess frame structure (16)

    OR
    (b) (i) Draw the block diagram of RELP encoder. Explain the function of coder. (6)
    (ii)Enumerate the process for selecting the optimum excitation signal (10)

    15. (a) (i) Discuss the features and service of GSM. (8)
    (ii)Explain the GSM system architecture with the neat sketch. (8)

    OR

    (b) discuss the channels and cellular operation in Advanced Mobile Phone
    Systems(AMPS). (16)

  • JNTU-ANANTAPUR : M.Tech I Sem & M.Pharm II Sem Reg & Supple Aug 2010 Exams RC Notification!

    JNTU-ANANTAPUR : M.Tech I Sem & M.Pharm II Sem Reg & Supple Aug 2010 Exams RC Notification!

    JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY ANANTAPUR
    ANANTAPUR – 515002 A.P. (INDIA)
    EXAMINATION BRANCH
    RECOUNTING NOTIFICATION
    FOR
    M.Tech I Semester Supplementary August 2010 Examinations
    The candidates who wish to apply for recounting of theory external marks should submit the requisitions to their Principals along with the statement of marks downloaded from www.jntuanantapur.org with necessary fee on or before 14.10.2010.
    ? The fee for recounting for each theory external is Rs. 100/=.
    ? There is no recounting for laboratory external.
    Further the Principals are requested to accept the recounting applications from students on or before the above date and forward the applications so as to reach the University positively by 21.10.2010 along with a consolidated statement and a single demand draft for all the students applied for recounting. The demand draft is to be drawn in favor of the Registrar, JNT University Anantapur, dated 16.10.2010 and payable at Anantapur.
    Sd.
    Date: 30.09.2010 Director of Evaluation I/c

    JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY ANANTAPUR
    ANANTAPUR – 515002 A.P. (INDIA)
    EXAMINATION BRANCH
    RECOUNTING NOTIFICATION
    FOR
    M.Pharm II Semester Regular & Supplementary August 2010 Examinations
    The candidates who wish to apply for recounting of theory external marks should submit the requisitions to their Principals along with the statement of marks downloaded from www.jntuanantapur.org with necessary fee on or before 18.10.2010.
    ? The fee for recounting for each theory external is Rs. 100/=.
    ? There is no recounting for laboratory external.
    Further the Principals are requested to accept the recounting applications from students on or before the above date and forward the applications so as to reach the University positively by 25.10.2010 along with a consolidated statement and a single demand draft for all the students applied for recounting. The demand draft is to be drawn in favor of the Registrar, JNT University Anantapur, dated 19.10.2010 and payable at Anantapur.
    Sd.
    Date: 01.10.2010 Director of Evaluation I/c

    Click the below links to Download:

    M.Tech I Sem Supple Aug 2010 Exams RC Notification

    M.Pharm II Sem Reg & Supple Aug 2010 Exams RC Notification

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