Whenever bits flow from one point to another, they are subject to unpredictable changes because of interference.10.2Įrror Detection and Correction By the End of this Chapter you will be able to: Understand different Types of Errors & Redundancy Detection Versus Correction Forward Error Correction Versus Retransmission Coding 10.4 CYCLIC CODES CRC Cyclic Redundancy Check Polynomials Cyclic Code Analysis Advantages of Cyclic Codes Other Cyclic Codes 10.5 CHECKSUM Idea /One's Complement /Internet Checksum 10.3ġ0-1 INTRODUCTION Let us first discuss some issues related, directly or indirectly, to error detection and correction. Some applications require that errors be detected and corrected. Chapter 10 Part III: Data Link LayerError Detection and CorrectionĮrror Detection and Correction What does accuracy means? What about corruptedmessage? Which layer is responsible for error detection and correction? Does all application has the same sensitivity to errors? Data can be corrupted during transmission.
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