Method and apparatus for detecting communication signals having

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371 3706, 371 436, 371 437, 375340, 375341, H03M 1300

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057578214

ABSTRACT:
A method and system for transmitting signals using unequal error protection (UEP). According to the method, symbols having a higher level of coding protection are detected and decoded first, soft reliability information is generated, and then the previously detected symbols and soft reliability information are used to detect and decode symbols having the next lower level of coding protection. The symbols having lower levels of coding protection benefit from the decoding of all previous classes of symbols. Data symbols can be interleaved to further enhance system performance.

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Hoeher, "Unequal Error Protection for Digital Mobile DS-CDMA Radio Systems", New Orleans Supercomm/ICC '94 Serving Humanity Through Communications, 1994 IEEE International Conference on Communications, vol. 3, pp. 1236-1241, May 1994.

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