Anna University Chennai 2007 M.E Optical Communication CO 1603 - NETWORKS - Question Paper

G 6140
M.E. DEGREE EXAMINATION, MAY/JUNE 2007.
First Semester
Communication Systems
CO 1603 - OPTICAL COMMUNICATION NETWORKS
(Common to M.E. - Optical Communication)
(Regulation 2005)
Time : 3 hours
Maximum: 100 marks
ans ALL ques..

PART A - (10 x two = 20 marks)

1.Mention the advantages and disadvantages of optical communication.

2.What is the need for couplers and isolators?

3.How is STS - one frame organized?

4.Specify the Protection architectures of sonet.

5.List any 2 features of shuffienet multihop Network.

6.Compare single hop and multihop network.

7.What is the need for wavelength routing testbeds?

8.Name any 2 routing techniques in optical communication networks.

9.Draw the basic building blocks ofWDM approach.

10.What are the key design objectives of optical TDM Networks?

PART B - (5 x 16 = 80 marks)

1. (a) With neat diagram discuss the design objectives and construction of Optical Networking. (16)

Or

(b) explain the functions offollowing optical components.
(i) 3 port circulator (4)
(ii) Fabry perot filter (8)
(iii) Electro-optical directional coupler. (4)

12. (a) discuss in detail Network management and Protection architectures of SDH. (16)

Or

(b) With neat diagram, discuss the elements of SONET infrastructure. (16)

13. (a) What is meant by Broadcast and choose Network? explain the design problems and objectives in detail. (16)

Or

(b) discuss the functions of Media access control protocols. (16)

14. (a) explain the concepts of Routing and wavelength assignment with neat diagram. (16)

Or

(b) discuss in detail the problems in network design of wavelength routing networks and optical layer cost tradeoffs. (16)

15. (a) Compare and contrast Broadcast networks and switch based networks in detail. (16)

Or

(b) explain in detail, SDM, TDM and WDM approaches in High capacity Networks. (16)


G 6140

Earning:   Approval pending.