Analysis of coding schemes for modulation and error control
Copyright policy )Analysis of coding schemes for modulation and error control
Summary: Several techniques for constructing practical codes for noisy modulation channels represented by \((d,k)\) constraints, such as in magnetic and optical recording, are analyzed. Concatenated schemes based on inner sliding-window codes are compared with concatenated schemes based on inner block codes in terms of efficiency and reliability. The performance of the schemes is investigated in detail for (1,7) constrained channels with different error characteristics. It is shown that for such channels, concatenated schemes based on inner sliding-window codes have higher code rates than concatenated schemes based on inner block codes for typical applications. However, if the channels are very noisy or extremely small decoding error probabilities are required, then the latter schemes tend to have higher code rates than the former ones.
- Delft University of Technology Netherlands
- IBM (United States) United States
- University of California, Davis United States
modulation, block codes, concatenated schemes, Modulation and demodulation in information and communication theory, optical recording, sliding-window, error probabilities, Combined modulation schemes (including trellis codes) in coding theory
modulation, block codes, concatenated schemes, Modulation and demodulation in information and communication theory, optical recording, sliding-window, error probabilities, Combined modulation schemes (including trellis codes) in coding theory
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