Spectral

Find Bandwith from Spectral Efficiency and Eb/N0

Find Bandwith from Spectral Efficiency and Eb/N0
  1. How is EBNO related to SNR?
  2. What is the formula for spectral efficiency?
  3. Why is EB N0 used instead of SNR?
  4. What is the minimum EB N0 required to achieve a spectral efficiency of 6 bps Hz?

How is EBNO related to SNR?

Eb/N0 is equal to the SNR divided by the "gross" link spectral efficiency in (bit/s)/Hz, where the bits in this context are transmitted data bits, inclusive of error correction information and other protocol overhead.

What is the formula for spectral efficiency?

1, the spectral efficiency is defined as ηs = B/Δvch, where B is the single-channel bit rate and Δvch is the channel spacing.

Why is EB N0 used instead of SNR?

Its main advantage is that the actual bandwidth is taken out of the equation, since N0 is simply the noise power in a 1 Hz bandwidth. This allows comparing different modulation schemes without having to worry about their spectral properties. EbN0=SNBRb.

What is the minimum EB N0 required to achieve a spectral efficiency of 6 bps Hz?

So, the minimum value of E b N 0 will be 10.5 to achieve a spectral efficiency of 6 bps/Hz.

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