Waveform in 4G (SCFDMA, SCFDE) - Part I — Lesson 8

This lesson covers the structure of the transmitter and receiver, the concept of time frequency diagram, and the impact of OFDM on the peak to average power ratio. It also covers the Single-carrier frequency-division multiple access and single-Carrier frequency domain equalization. It further explores methods to reduce peak to average power ratio. This lesson also covers the single carrier FDE or multi carrier spread spectrum in detail.

Video Highlights

00:18 - Introduction and recap of previous lesson
07:00 - Single-carrier frequency-division multiple access
12:00 - Peak to average ratio
17:41 - Single carrier FDE / multi carrier spread spectrum
23:10 - Frequency domain spread OFDM
31:57 - Important considerations multi carrier spread spectrum

Key Takeaways

- Understanding the multi-carrier system, OFDM, and its parameters is crucial in the evolution towards 5G.
- Propagation characteristics significantly influence the design of OFDM.
- The structure of the transmitter and receiver plays a vital role in the functioning of the system.
- The concept of time frequency diagram is essential in for the frame structure.
- The peak to average power ratio is affected by OFDM, and there are methods to reduce this.
- The merits and demerits of OFDM can lead to the development of newer methods.