Cellular Networks -Unit 5 and Unit 6 -Previous Year Questions for END SEM Exam

 Cellular Networks

Unit 5 Question Bank

 Q1]  a) Describe with neat diagram wireless LAN. Compare Infrastructure and

Adhoc based wireless LAN.                                                                                         [9]

       b) Draw and explain Radio protocol Architecture for LTE - Advanced system   [9]

 

Q2) a) Draw and explain in detail LTE Architecture.                                                 [9]

      b) Compare 3G and 4G with respect to following :                                             [9]

i) Data Rate supported

ii) Modulation Technique

iii) Frequency Band

iv) Technology used

Q3)   a) Draw and explain LTE network architecture.                                                  [9]

b) Compare various IEEE 802.11(802.11, 802.11a, 802.11b, 80.211g,80.211n) standards. [7]

c) List various simulators used for simulation of wireless network.                              [2]

 

Q4)  a) With neat schematic explain open wireless architecture of 5G                      [9]

b) Compare all mobile standards (1G to 5G) for following parameters:                     [9]

Year of Implementation, standard used, technology, multiple access technique used, data rates, switching technique, frequency spectrum used, services provided, Advantages & disadvantages.

Q5)  a) With neat diagram, explain in detail Evolved Packet Core architecture of LTE.           [6]

b) Draw LTE-A Radio Protocol Architecture. Explain the significance of

RLC and RRC in the architecture.                                                                            [6]

c) List our detail specification of LTE.                                                                      [5]

 

Q6)  a) Classify and explain in brief Wireless Local area Network.                               [6]

b) Compare LTE and LTE-A.                                                                                          [4]

c) List out three, why there is a need of series of 802.11 standards. Describe the utility of IEEE80 2.11a and 80 2.11n.                                                                                                         [7]

Q7) a)  a) Explain the requirements of 5G? Also explain the open wireless architecture of 5G.                                                                                                                                                           [9]

b) Compare LTE and LTE A.                                                                                           [7]

c) List any four specifications of LTE.                                                                             [2]

 

Q8)  a) Explain the following IEEE standards :                                                                [9]

IEEE 802.11a, IEEE 802.11g, IEEE 802.11d, IEEE 802.11e, IEEE,802.11n, IEEE 802.11r.

b) Draw and explain LTE radio protocol architecture.                                                     [8]

Q9)  a) With diagram explain components of 5G Network Architecture.                         [6]

b) Describe the operation of wireless local area network with diagram.                           [6]

c) Explain in brief with diagram a LTE-A radio protocol Architecture.                             [5]

 

Q.10)  a) Compare 3G and 4G mobile generation network.                                              [6]

b) Explain the operation of infrastructure based and adhoc WLAN with neat

diagram.                                                                                                                              [6]

c) With block diagram, explain GSM architecture.                                                            [5]

Unit 6 Question Bank

Q1) a) With neat diagram, use of network coding for Content distribution in a multi - Hop network. [9]

b) Classify Schedulers & Explain in brief.                                                                            [9]

i) Weighted Round Robin Scheduling

ii) Weighted Fair Queuing.

 

Q2)  a) Explain following terms with reference to Scheduler Design :                                    [8]

i) Classifier ii) Channel Quality

b) List various Design forces for link Adoptation Schemes at physical and MAC loyers.    [10]

Q3)  a) Explain the use of network coding to improve throughput, robustness,

complexity, security.                                                                                                                [8]

b) Explain the classification of scheduling algorithm, and explain the types

of scheduling.                                                                                                                          [9]

 

Q4)  a) Explain Radio resource scheduling.                                                                            [8]

b) Explain network performance parameters used to provide better quality

of experience (QoE) in wireless network.                                                                               [9]

Q5)  a) Explain step by step with neat diagram, how performance evaluation of a Real System is done.                                                                                                                                                   [6]

b) Explain following network performance parameters used to manage service performance : [5]

i) Throughput

ii) Packet loss

iii) Latency

iv) Availability and

v) Reliability

c) What are four mechanisms to improve link robustness of wireless network. Explain any one in detail.                                                                                                                             [6]

 

Q6.)  a) Write a brief note on the Layered analysis in wireless networks.                               [6]

b) What is Network Coding. With neat diagram, explain how network coding helps in video broadcasting from one device to multiple receivers.                                                                [5]

c) With reference to Scheduler Design, explain following components in brief :                    [6]

i) Classifier

ii) Channel Quality

iii) Scheduler

Q7 )  a) Explain in detail the why to evaluate the performance of a system and the procedure to performance evaluation of a system.                                                                                       [8]

b) Explain network coding and elaborate the use of Network Coding in wireless communication. [9]

 

Q8)  a) Explain mechanisms by which a system could improve link robustness in wireless communication.                                                                                                                      [8]

b) Explain the classification of scheduling algorithm and explain the types of scheduling.     [9]

Q9)  a) Explain one Scheduling algorithms for real-time traffic with diagram in mobile communication.                                                                                                                       [6]

b) With neat diagram, explain in brief different steps in the scheduler design for mobile communication.                                                                                                                      [6]

c) Explain with neat diagram, the operation of Network coding in mobile

communication.                                                                                                                        [6]

 

Q10) a) Explain Layered Analysis in mobile communication.                                               [6]

b) Explain in brief following QoS parameters : -                                                                    [6]

i) Throughput

ii) Latency

iii) Packet Loss

c) Explain in brief following QoE parameters :-                                                                     [6]

i) Peak Signal to Noise Ratio

ii) Video Quality Metric

iii) Mean Opinion Score