Root raised cosine vs raised cosine

1. Why use root raised cosine?
2. What is raised cosine pulse shaping?
3. What is raised cosine spectrum in digital communication?
4. Which of the statements are the limitations of the raised cosine filters?

Why use root raised cosine?

Using 90% power Bandwidth (BW) measurement definition showed that the RRC filtering might improve spectrum efficiency by more than 75%. Furthermore using the matching RRC filters both in the transmitter and receiver provides the improved Bit Error Rate (BER) performance.

What is raised cosine pulse shaping?

The raised cosine pulse is one type of Nyquist-II pulse. It possesses a transfer function given by. (3.67) where β is called the roll-off factor, which takes values between 0 to 1, and β/2T is called the excess bandwidth.

What is raised cosine spectrum in digital communication?

The raised-cosine filter is a filter frequently used for pulse-shaping in digital modulation due to its ability to minimise intersymbol interference (ISI). Its name stems from the fact that the non-zero portion of the frequency spectrum of its simplest form ( ) is a cosine function, 'raised' up to sit above the.

Which of the statements are the limitations of the raised cosine filters?

Raised cosine filter does not satisfy Nyquist criteria.