EXAM1_07 - Question 5. How is congestion detected in ESRT?...

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ECE4607: MOBILE AND WIRELESS NETWORKS SPRING 2007 EXAM 1: February 22, 2007 Dr. Ian F. Akyildiz Ken Byers Distinguished Chair Professor in Telecommunications Broadband and Wireless Networking Laboratory School of Electrical and Computer Engineering Georgia Institute of Technology; Atlanta, GA 30332 Tel.: 404-894-5141; Fax.: 404-894-7883; E_Mail: ian@ee.gatech.edu Question 1. Why can’t we use IP addressing mechanism in wireless sensor networks (WSNs)? Question 2. What are possible alternatives for energy sources in addition to batteries and solar energy in WSNs? Give couple examples. Question 3. One way to save power in WSNs is to address the IDLE listening problem by sleep schedules. What else can be done in terms of topology (architecture) control to save energy? What will be the problem with this solution? Question 4. What type of WSN applications is not well suited for ESRT?
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Unformatted text preview: Question 5. How is congestion detected in ESRT? Question 6. Are there any routing tables in SPIN algorithm? Question 7. What is the difference between SPIN-1 and SPIN-2? Question 8. What type of WSN applications is not well suited for Directed Diffusion routing algorithm? Question 9. How are the clusters formed in the LEACH algorithm? Explain briefly two ways. Question 10. Explain informally how the cluster heads are selected in the LEACH algorithm? Question 11. What is the problem of source routing scheme, which is used in DSR? Question 12. What are the similarities and differences between DSR and AODV? Explain briefly. Question 13. What are the similarities and differences between AODV and DSDV? Explain briefly. Question 14. What does RERR packet achieve in DSR? Question 15. Why is route caching (in DSR) not needed/not used in AODV?...
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EXAM1_07 - Question 5. How is congestion detected in ESRT?...

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