Communication system employing turbo codes and a hybrid...

Details Communication system employing turbo codes and a hybrid... Communication system employing turbo codes and a hybrid...

2007-04-24

2007-04-24

Decady, Albert (Department: 2138)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S774000, C714S790000

Reexamination Certificate

active

10193144

ABSTRACT:
A communications system employs a HARQ method and, for at least some transmission formats, incremental redundancy (IR) signals. For such formats, the multiple IR signals are derived from a single turbo encoded signal by forming multiple permutations of the encoded signal. The permutations are then converted to the coding rate of the selected transmission format. It is demonstrated by simulation that the present proposal achieves a better performance than the known HARQ techniques, while its implementation is simpler. For certain transmission formats, the transmitted signal in response to a retransmission request is identical to the first transmitted signal.

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