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Let us understand Unipolar, Polar and Bipolar signaling types. Technique such as bipolar coding has error correction capability.Long string of ones and zeros are avoided.It makes system power efficient for given bandwidth.It reduces required bandwidth by transmitting many bits using single signal pulse.Line encoder converts digital data to digital signal format and line decoder The same digital signal is decoded at the receiver side by line decoder. Line encoder does line coding at the sender side as shown in figure-1. Using this coding, it is possible to map sequence of bits into digital signal. Line coding is a technique which represents digital data into digital signals. Minimize ISI (Inter Symbol Interference) by avoiding distortion and overlapping of consecutive pulses. The RZ and NRZ pulse shapes are used in these techniques to To transmit digital data using digital signals. Line coding techniques such as unipolar, polar and bipolar are used

digital and analog.ĭigital signals are represented in the form of binary zeros and ones. The RZ and NRZ line coding is used for digital communication and

This page compares RZ vs NRZ and mentions comparison between RZ and NRZ pulse shapes. RZ vs NRZ | Comparison between RZ and NRZ Line Coding