Error detection/correction coding for hierarchical QAM...

Details Error detection/correction coding for hierarchical QAM... Error detection/correction coding for hierarchical QAM...

2006-07-04

2006-07-04

Decady, Albert (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

Reexamination Certificate

active

07073116

ABSTRACT:
The power of the respective codes used by the first and second error detection/correction circuitry are such that the coded bit error rate of the first data stream is more closely matched to the coded bit error rate of the second data stream. A hierarchical QAM system allows the transmission of different sources by embedding the relative constellation points. The hierarchical QAM transmitter encodes the first data stream using a code having a first detection/correction power and encodes the second data stream using a code having a second detection/correction power.

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L. Papke et al., “Combined Multilevel Turbo-Code with MR-Modulation”, Seattle, Jun. 18-22, 1995, New York, IEEE, US, Jun. 18, 1995, pp. 668-672.
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