Unipolar vs bipolar symbols |
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The symbol error probability for a unipolar binary data system with matched filtering is thus:Ps unipolar = 0.5·erfc(0.5·Es average/N0)1/2If we now look at the bipolar data waveform where a logic 1 is conveyed as +V volts and a logic 0 as -V volts, we can show (see in-depth) that:The symbol error probability for a bipolar waveform is given by:Ps bipolar = 0.5·erfc(Es average/N0)1/2 |
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