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Comparison of Bipolar and ON-OFF Line Codes for Data Transmission Efficiency

Compare bipolar and ON-OFF line codes in terms of spectrum efficiency, transparency, error detection, and timing. Determine the pulse transmission rate using Nyquist criterion. Calculate detection error probabilities for Polar, On-Off, and Bipolar signaling methods.

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Comparison of Bipolar and ON-OFF Line Codes for Data Transmission Efficiency

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  1. .Compare bipolar and ON-OFF line codes in terms of spectrum efficiency, transperancy, error detection and timing

  2. · Determine the pulse transmission rate if the transmission bandwidth is 3000Hz and the roll-off factor used for Nyquist criterion is 25%. • Bt=3000hz • R=0.25 • Rb=? • Rb=(2/1+r)*Bt • Rb= (2/1+0.25)*3000=6000/1.25 pulse/sec

  3. · If a peak pulse amplitude A p=2 milli-volt and the channel noise rms value = 192.3 micro-volt. If threshold detection is used and 1 and 0 are equally likely. Find the detection error probability for : Polar signaling On-Off Bipolar • Polar P(E)=Q(2*10^-3\192.3*10^-6) • On-off P(E)=Q(2*10^-3\2*192.3*10^-6) • Bipolar P(E)=1.5*Q(2*10^-3\192.3*10^-6)

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