APPLICATIONS OF Error CONTROL CODING TECHNIQUES
1) Coding for White Gaussian Noise (AWGN) Channels:
• Forward error correction (FEC) codes are used for AWGN Channels. Line-of-sight radio connections, such as satellite and deep space communication links, are typical applications.
• In channels that may be described as White Gaussian noise channels, Forward Error Correcting (FEC) codes are employed for error correction.
• Line-of-sight radio communications, such as satellite and deep space communication lines, are common applications.
2) Coding for compound-error channels:
• Automatic Repeat Request (ARQ) techniques are used for compound-error channels. Telephone and radio channels are two examples of common applications.
• A mixture of random (independent) and burst errors can be found in many real-world communication channels. These are referred to as Compound-error channels. Telephone and radio channels are two examples.
• Automatic Repeat Request is an effective method for error protection over compound-error channels (ARQ).
3) Block codes for error Control in data storage
• Block codes are widely used in magnetic tapes, mass storage systems, magnetic discs, and other data storage systems to offer error control.
4) Trellis-Coded Modulation (TCM) for efficient utilization of Bandwidth and power
• TCM (Trellis-coded Modulation) combines convolutional coding and modulation into a single function. TCM is used in the development of a new generation of telephone channel modems.
• The benefits of error correction coding are obtained at the expense of greater bandwidth.
• We must make efficient use of the key resources of bandwidth and power in communication.
• Trellis-Coded Modulation (TCM) is one method of employing error-correcting coding and bandwidth efficiently.
• In this technique, convolutional coding and modulation are combined into a single function.
