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• enough pulse or bit enery Eb

• over noise power spectral density, aka noise power per Hz N0

• enough pulse or bit enery Eb

• over noise power spectral density, aka noise power per Hz N0

s signal may be anything to measure, over time, for then calculate signal power.

s is often measured to control work [kgm] or [lbft] . Work is, or should be, proportional to money [$] or [£] or equivalent.

Power measures capacity to generate work.

When working with electrical signals power is [V^2/Ohm] or [A^2*Ohm].

Most relevant literature obviate what impedance value(s) exactly to use, because it depends upon what network is used.

So [CARLSON] included assume 1[Ohm] and develop accordingly. So

For broadband signals more or less complicated expressions or far more simple then do obtain, direct measurements are used.

7.- An example: OFDM signals are considered broadband because several close carriers are often used the overall bandwidth being much larger than the band for each single carrier.

For broadband signals more or less complicated expressions may or nay not be available and it may be far more practical to obtain direct measurements.

7.- An example: OFDM signals are considered broadband because several close carriers are often used and the overall bandwidth being much larger than the band for each single carrier.