Wireless and Mobile Communications Practice Test 7

1. Power spectral density of speech is flat.

2. Linear predictive coders are computationally simple.

3. Quantization is a ________ process.

4. What is the time duration of a bit if data is transmitted at 270.833 kbps in the channel?

5. Narrowband FDMA allows users to share the same radio channel allocating a unique time slot to each user.

6. In US AMPS, 416 channels are allocated to various operators with 10 kHz guard band and channel between them is 30 kHz. What is the spectrum allocation given to each operator?

7. SSMA is bandwidth efficient when used with a single user.

8. The technique that makes possible the task of listening and talking in communication system is called ________

9. Auto correlation function measures______ between samples of a speech signal as a function of _______

10. ________ is often called the formant of the speech signal.