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Data Transmission and Integrity

This chapter distinguishes between error detection and error correction. It shows calculation of the bit error probabilities for a simple channel coding scheme. The chapter helps the reader to understand the working of algorithms for block error detection and block error correction. It explains the operation of convolutional coding, including path‐search algorithms. The chapter discusses private key encryption, key‐exchange methods, and public‐key encryption. It reviews two useful concepts in modeling data transmission integrity. These are probability concepts and integer arithmetic. Calculations for data transfer integrity checking, and newer approaches to data security and encryption, depend on integer arithmetic in general and modulo arithmetic in particular. The chapter introduces the key concept of the bit error rates and relates it to the system overall, the transmitted signal power, and the external noise encountered.