Waveform Design Aspects of 2G — Lesson 1

This lesson covers the importance of maintaining continuity in phase and choosing the appropriate pulse shape for future generation air interface or waveform design. It provides a detailed explanation of different modulation methods like M-ary PAM, angle modulation, and continuous phase modulation systems. It also covers the Concept of continuous phase modulation (CPM) and its role in reducing bandwidth requirement. The lesson concludes with an overview of the spectrum occupancy of signaling techniques.

Video Highlights

00:18 - Introduction
01:57 - M-ary PAM case and the bit rate of multicarrier waveforms
05:14 - Conventional FSK and the carrier modulated signal
12:33 - Concept of continuous phase modulation (CPM)
20:03 - Gaussian pulse shape and its role in GMSK
26:57 - Concept of MSK and its role in GMSK
24:28 - M-ary-frequency shift keying and how it can be used to choose frequencies

Key Takeaways

- The structure for waveform design addresses a wide variety of waveforms.
- Multiple different carriers can be orthogonal to each other.
- The selection of carriers and modulation techniques plays a crucial role in communication systems.
- The structure for multicarrier communication systems gives rise to various waveforms contending for the fifth-generation communication system.
- Continuous phase modulation systems can reduce bandwidth requirements.