cmc

SET-1

NOVA COLLEGE OF ENGINEERING AND TECHNOLOGY

JAFFERGUDA, HAYATHNAGAR-R.R DISTRICT

                                         DEPARTMENT OF

   ELECTRONICS AND COMMUNICATION ENGINEERING

II-MID EXAMINATION

SUBJECT: CMC                                                                  YEAR: IV/ I SEM

COURSE: B.TECH ECE                                                   DATE:02-12 -2011.

MARKS: 20                                                   TIMINGS: 02.00 TO 04.00 PM.         

I. Answer any FOUR of the following.

1. A). Explain the limitations of conventional mobile telephone system, with neat diagram?

  B). Explain about NMT & NTT Systems.

2. A). Explain cell splitting both permanent and dynamic?

B).Explain the frequency reuse distance in cellular radio system.

3. Explain how co-channel interference is measured in real time mobile radio transceiver?

                      

4. Concept of delaying a handoff, what are the advantages of delayed handoff

5. A). Write about forced handoff,

B). Definition of dropped call rate

What is the general formula of dropped call rate? Explain?

 6. Explain in detail about GSM architecture

SET-2

NOVA COLLEGE OF ENGINEERING AND TECHNOLOGY

JAFFERGUDA, HAYATHNAGAR-R.R DISTRICT

                                         DEPARTMENT OF

   ELECTRONICS AND COMMUNICATION ENGINEERING

II-MID EXAMINATION

SUBJECT: CMC                                                                  YEAR: IV/ I SEM

COURSE: B.TECH ECE                                                   DATE: 02-12 -2011.

MARKS: 20                                                   TIMINGS: 02.00 TO 04.00 PM.         

I. Answer any FOUR of the following.

1. A) Draw the general view of telecommunication and explain the function of the each unit?

   B). Explain about NMT & NTT Systems.

2. A) Explain about the marketing of hexagonal cells?

    B) Explain the concept of frequency reuse channels.

3. A) Explain the hand-off mechanism.

    B) Explain the cochannel interference reduction factor. 

             

4. Explain the designing of an Omni directional antenna system in the worst case scenario.

5. A). What is Intersystem handoff?

    B). Definition of dropped call rate

What is the general formula of dropped call rate? Explain?

 6. Explain the architecture of TDMA?

SET-3

NOVA COLLEGE OF ENGINEERING AND TECHNOLOGY

JAFFERGUDA, HAYATHNAGAR-R.R DISTRICT

                                         DEPARTMENT OF

   ELECTRONICS AND COMMUNICATION ENGINEERING

II-MID EXAMINATION

SUBJECT: CMC                                                                  YEAR: IV/ I SEM

COURSE: B.TECH ECE                                                   DATE:02-12 -2011.

MARKS: 20                                                   TIMINGS: 02.00 TO 04.00 PM.         

I. Answer any FOUR of the following.

1. A). Explain about basic cellular system.

    B). what are the different types of noises in cellular frequency ranges Explain in      detail?

2. A). Derive the C/I for normal case in an Omni directional antenna system.

    B). what is the need of splitting and explain the cell splitting.

3. Define cochannel interference. How is it measured at the mobile unit and cell site?

                     

4. Concept of delaying a handoff, what are the advantages of delayed handoff?

5. A). Why hand off is necessary? Concept of delaying a handoff.

    B). Definition of dropped call rate and consideration of dropped call rates.

6. Write short notes on,

(a) TDMA structure

(b) Frame length

(c) Frame offset

(d) Modulation timing.

SET-4

NOVA COLLEGE OF ENGINEERING AND TECHNOLOGY

JAFFERGUDA, HAYATHNAGAR-R.R DISTRICT

                                         DEPARTMENT OF

   ELECTRONICS AND COMMUNICATION ENGINEERING

II-MID EXAMINATION

SUBJECT: CMC                                                      YEAR: IV/ I SEM

COURSE: B.TECH ECE                                                   DATE: 02-12 -2011.

MARKS: 20                                                   TIMINGS: 02.00 TO 04.00 PM.         

I. Answer any FOUR of the following.

1. A). Draw the general view of telecommunication and explain the function of the each unit?

   B). Explain the phenomena of severe fading?

2. A). Explain cell splitting both permanent and dynamic?

    B).Explain the frequency reuse distance in cellular radio system.

3. A) what is near-end-far-end interference ratio and explain its effects?

    B) Write a note on power control.

               

4. Concept of delaying a handoff, what are the advantages of delayed handoff

5. A). Write about forced handoff,

    B). Definition of dropped call rate

What is the general formula of dropped call rate? Explain?

 6. Explain in detail about GSM architecture

emi

1.diff between dual trace and dual beam; measure da time nd period

2.sampling oscilloscope

3.a measurement of inductor by using andersons bridge;applications of wheat stone brige

4.transducer? nd xplain abt piezo electric transducer

5.lvdt

6.operation of strain guage

7.measuring the capacitance by using wein bridge;adv and disadv of storage oscilloscope

8.xplain abt lisajious method  of freq measurments

9.probes of cro(explain)

10.thermocouples

11.dif between mesh and phosphor oscilloscope

cn

1. What is meant by Routing Algorithm? Explain the shortest path algorithm?

      2 Compare and Contrast TCP & UDP protocols?

     3    Write short notes on the following:

            (a)  E-mail (b) multimedia (c) world web.

4        Explain in detail the term ‘internet working’?

5        What is meant by ATM? Explain ATM AAL LAYER protocol?

6        Write short notes on DNS.

 

1.     What are the Services provided by Network layer to the Transport layer ?

2.      Explain broadcast routing algorithm.

3.       What are the services provided by the transport layer to the upper layers?

      4. Discuss the functions of the communication subnet to provide datagram

service.

5. Explain multicast routing algorithm.

6. What are the transport service primitives?

1.      What is meant by connection state information in a virtual circuit network?

2.       Compare Virtual-Circuit and Datagram Subnets.

3.      What is routing algorithm? What are the classifications of it?

4.      What are the congestion prevention policies?

5.      Explain addressing at transport layer.

6.      What is forbidden region? Explain how sequences numbers are given to

         TDPUs

1.      What are the congestion prevention policies?

2.      Compare Virtual-Circuit and Datagram Subnets

3.      What is forbidden region? Explain how sequences numbers are given to

         TDPUs.

4.      Explain multicast routing algorithm. What are the Services provided by Network layer to the Transport layer ?

5.      What is meant by ATM? Explain ATM AAL LAYER protocol?

6. Write short notes on DNS.