Chapter 6 / 6.10 / 6.10.10

6.10.10 How Do Engineers Choose The Best Modulation Scheme?

Explore the engineering trade-offs involved in selecting a modulation scheme. Learn how bandwidth, power efficiency, signal-to-noise ratio, fading, equipment complexity, mobility, and application requirements determine the most appropriate choice.

1. What Factors Influence the Choice of Modulation?
2. Why Is Bandwidth Important?
3. Why Does Signal-to-Noise Ratio Matter?
4. Why Is Transmitter Power Important?
5. How Do Propagation Conditions Affect the Decision?
6. Why Is Mobility Important?
7. Why Is Receiver Complexity Important?
8. Why Is Reliability Sometimes More Important Than Speed?
9. Why Doesn't Everyone Use 256-QAM?
10. What Is Adaptive Modulation?
11. How Does Channel Coding Influence the Choice?
12. Why Is OFDM Used in Modern Wireless Systems?
13. Why Do Satellite Systems Use APSK Instead of QAM?
14. Why Does HF Radio Still Use SSB?
15. Why Do Mobile Phones Use Several Modulation Schemes?
16. What About Future Communication Systems?
17. Is There Ever a Perfect Choice?
18. Why Is Understanding These Trade-Offs Important?

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