Which channel encoding technique transmits successive binary "1" bits with alternating polarity?

The correct answer is RZ-AMI, which stands for Return-to-Zero Alternate Mark Inversion. This encoding technique is specifically designed to handle the transmission of binary data while mitigating issues such as DC bias. In RZ-AMI, binary "1" bits are transmitted by alternating their polarity—if the last "1" was sent as a positive voltage, the next "1" is sent as a negative voltage, and vice versa. This alternating polarity helps maintain an average voltage level close to zero, making it easier for the receiver to detect the signal while reducing the risks associated with signal drift.

This technique is particularly effective because it allows for easier synchronization between the sender and receiver, as the receiver can quickly detect transitions in the signal. Each binary "0" is represented by no signal (returning to zero), making it clear when a bit is being transmitted and minimizing errors in detection.

Other options do not fit this scenario. Parity is a method for error detection but does not encode data in the way described. CRC, or Cyclic Redundancy Check, is also an error-detecting code used to check the integrity of data but does not involve the polarity changes associated with RZ-AMI. Convolution is a form