Which waveform scheme introduces bandwidth compression?(a) Duobinary(b) Manchester coding(c) Phase encoded waveform(d) Multilevel codesThis question was posed to me in final exam.My question is based upon Baseband Transmission-2 in section Formatting and Baseband Modulation of Digital Communications

Which waveform scheme introduces bandwidth compression?(a) Duobinary(b

1.	Which waveform scheme introduces bandwidth compression?(a) Duobinary(b) Manchester coding(c) Phase encoded waveform(d) Multilevel codesThis question was posed to me in final exam.My question is based upon Baseband Transmission-2 in section Formatting and Baseband Modulation of Digital Communications
Answer» RIGHT option is (d) Multilevel codes Easy explanation: Multilevel codes increases the bandwidth efficiency by reducing the bandwidth UTILIZATION for the given data RATE.

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