ECE4607-FINAL07 - ECE 4607 Mobile and Wireless Networks...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
ECE 4607: Mobile and Wireless Networks SPRING 2007 FINAL EXAM May 3 rd 2007 Dr. Ian F. Akyildiz, Distinguished Chair Professor 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: [email protected] Open Book Test (Only hard copies of class notes are allowed!!) No laptops or any other devices are permitted. Duration: 3 hrs. All questions have the same weight. Question 1 a) LEO satellites in 3G systems why are they preferred for voice traffic? b) GEO systems… for what type of traffic are they used within the 3G systems? Why? c) What are differences between AMPS and GSM system? Give 3 differences. d) Why is the NEAR FAR problem not present in GSM? e) What is the difference between registration and call establishment in a cellular network? f) What is the difference between open versus closed loop power control?
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Question 2 Consider a cellular system with a total bandwidth of 30 MHz. Each full duplex voice or
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern