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  • Students give state colleges the miss!

    Students give state colleges the miss !

    Even though Andhra Pradesh has the highest number of professional colleges in the country, stu- dents here are making a bee- line for col- leges in other states.

    Oct. 3: Andhra Pradesh has the highest number of professional colleges in the country, yet, ironically, large numbers of its students are opting to pursue professional courses in other states.

    Universities and colleges are issuing migration certificates on a scale never seen before, a worrying trend for colleges, many of which have had to shut down for lack of students. The state government is concerned as it is losing hundreds of crores of rupees in revenue by way of affiliation fees and taxes on education.

    The migration of students to other states was common till the late 1990s. But as hundreds of professional colleges opened in the state after 1997, when the sector was thrown open to private
    players, migration levels fell significantly.

    This has changed again recently.

    As per official estimates, as many as 75,000 students, who qualified in the Eamcet engineering exam this year, migrated to other states to take admission in engineering courses. Another 25,000 students opted for management quota seats located in other states.

    Another 10,000 students opted for reputed deemed universities and centrallyfunded institutions and another 50,000 students opted for National Institutes of Technology and Indian Institutes of Technology.

    Education officials and college managements are mystified about this outflow to others states when AP has more than enough seats in almost every course.

    The reasons are probably two-fold. The recent politi
    cal turmoil over bifurcation of the state, that spilled out onto the streets and involved students as well, may have made destinations in other states more attractive to students. More importantly, it is the poor quality of education offered in a majority of colleges that has been forcing parents and students to search for better alternatives outside the state.

    “The pass percentage in engineering, MBA and MCA courses has dipped to less than 20 per cent for the last three years. The results are worse in medical and dental colleges in the state.
    Permitting hundreds of colleges every year without the required faculty and infrastructure has started to show negative results. The largescale migration of students from the state this year is an indicator of how things will turn out for colleges in the state in the coming days,” said Prof. Bhanu Murthy of Osmania University.

    “I have examined several students who finished engineering courses in the state recently,” said Mr K.R.

    Vishwanath, a senior engineer in the irrigation department. “They lack subject knowledge and communication skills. Many are rushing to computer training and English-speaking classes to obtain necessary skills for employment after getting an engineering degree. This means they learnt nothing during the course period.” Thousands of students from East Godavari, West Godavari, Chittoor, Nellore and Visakhapatnam are studying in the Vellore Institute of Technology (VIT) in Tamil Nadu. This year, there were 15,000 more admissions from AP in VIT than last year.

    Source: DC

  • 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)

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