Comparison of Waveforms — Lesson 6

This lesson covers the comparison of different waveforms such as OFDM, SCFDMA, SCFDE, FBMC, UFMC, and GFDM. It discusses their performance, complexities, and the potential solutions for improving their efficiency. The lesson also delves into the importance of low complexity results, the comparison of different waveforms, and the impact of various factors like carrier frequency offset, symbol timing offset, and Peak to Average Power Ratio (PAPR) on the performance of these waveforms. It concludes with an evaluation of the spectral efficiency of these waveforms and their potential use in the sixth generation communication system.

Video Highlights

00:18 - Introduction
01:25 - Comparison of FBMC, GFDM and UFMC waveforms
06:29 - Relative performance of different waveforms using a set of simulation parameters
08:09 - BER performance with ideal receiver
15:12 - PAPR and its impact on the performance of different waveforms
20:53 - Out of band spectrum leakage of different waveforms
27:13 - Summary of the performance of different waveforms

Key Takeaways

- Different waveforms like OFDM, SCFDMA, SCFDE, FBMC, UFMC, and GFDM have unique characteristics and performance levels.
- Factors like carrier frequency offset, symbol timing offset, and Peak to Average Power Ratio (PAPR) significantly impact the performance of these waveforms.
- FBMC waveform has the best out-of-band spectral performance, but it performs poorly in other metrics.
- GFDM waveform shows better resilience to carrier frequency offset and has high spectral efficiency.
- There is no single waveform that outperforms all others in all metrics, indicating the need for further research and development in this field.