1) Why MIMO is called a multiple antenna system or a multidimensional wireless communication system ?

2) What are the various ways to improve the data rate of any wireless system ?

3) Why the transmitted power can not be increased according to requirement to improve the SNR at the receiver ?

4) Why the use of higher BW limits the long range operation in wireless communication ?

5) What is diversity ? How it is useful in increasing the SNR at the reciever ?

6) Explain Space Diversity with suitable illustration.

7) Give the classification of diversity based on fading.

8) Differentiate between Microscopic diversity and Macroscopic diversity.

9) What are the advantages of MIMO ? Explain in brief.

10) Justify that in diversity system the gain comes in form of increased reliability, and in spatial multiplexing the gain comes in form of increased data rate.

11) In spatial multiplexing, how the gain of independent subchannels is determined ?

12) Solve Problem 9.1 with a = 1 and b =2 comment upon results.

13) Solve problem 9.1 with Power transmitted on each antenna is 1 and noise power is 0.5 W. Comment upon the result.

14) The data stream 101011 is sent via SISO system, 3*1 MIMO with diversity and MIMO with multiplexing. Illustrate the transmission of data with suitable diagram. Determine the diversity gain and multiplexing gain in each case.