Eb/N0

Eb/N0 is a parameter in the digital communication and data transmission, which is used in particular when comparing the bit error rate of different digital modulation methods, if the bandwidth is to be neglected. In general it: The less bit errors are to be tolerated, the greater must be the Eb/N0-Wert.

Eb/N0 is the ratio of signal energy per bit to noise power per 1 Hz, and thus independent of the bandwidth. It is therefore to be understood as a normalized signal -to-noise ratio (SNR) and is also referred to as SNR per bit. The unit of Eb/N0 is 1/Bit, usually the value is expressed in dB.

Relation to other variables

Eb/N0 is proportional to the signal -to-noise ratio (SNR ) or carrier to noise ratio (CNR or C / N). The relationship is given by the following formula:

Fb is the net data rate, B is the bandwidth. In logarithmic form gives the formula to:

Eb/N0 can be viewed as a normalized value of Es/N0, the ratio of the energy per symbol to noise energy. The relationship between these quantities is given by:

Wherein represents the spectral efficiency.

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