Error Control Techniques and Their Applications

This paper is an introduction to the subject of error-control coding. Undesirable disturbances like noise, EMI, crosstalk can occur across the communication channel, causing the received information to be different from the original information sent. So to remove this we need some methods to detect as well as correct errors. This paper presents in a tutorial form a survey of the old and recent, powerful error correcting coding techniques. These techniques ensure receiving system to detect and possibly correct errors caused by corruption from the channel and the receiver by enabling the decoder to correct errors without requesting retransmission of the original information. The usual mathematical approach is bypassed to appeal to wider readers. The operation, proper use, and limitations of error-control codes are described.