From GSM to LTE: An Introduction to Mobile Networks and Mobile Broadband

5.12 Questions

1. What are the theoretical and practical bandwidths offered by an 802.16 system when used for connecting end users to the Internet?

2. How does the coding scheme influence user throughput and overall throughput in a cell?

3. Why does the 802.16 support both FDD and TDD mode of operation?

4. What is a service flow?

5. What are the difficulties encountered when a license-free band is used for the operation of an 802.16 cell?

6. Why is fragmentation and packing used for transmitting IP packets over the 802.16 air interface?

7. What is the difference between the coordination scheme used in WLAN (802.11) and the one used in 802.16 systems?

8. Why is the MAC address of a device not used in the header of a MAC packet?

9. What are the steps required for a SS to connect to the network?

10. How can a mesh network extend the range of a base station?

11. What is the advantage of using an adaptive antenna system?

12. What is the basic architectural difference between a WiMAX radio network and other radio networks described in this book?

13. What is fast base station switching?

14. How can MIMO improve transmission speeds?

Answers to these questions can be found on the companion website for this book at http://www.wirelessmoves.com.

References

[1] The Institute of Electrical and Electronics Engineers, Inc., ‘IEEE Standard for Local and Metropolitan Area Networks—Part 16: Air Interface for Fixed Broadband Wireless Access Systems’, IEEE standard 802.16-2004, October 2004.

[2] The ...