Title :
A repeat request scheme for convolutional codes based on reliability output decoding
Author :
Reudenberger, J. ; Stender, Boris
Author_Institution :
Dept. of Telecommun. & Appl. Inf. Theor., Ulm Univ., Germany
Abstract :
A new adaptive-feedback error-correction scheme for convolutional codes is presented. Similar to standard hybrid ARQ schemes the new approach is packet oriented. However, as the main innovation of this paper we propose to transmit incremental redundancy only for particular unreliable code sequence segments. Such segments can be determined using a modified Viterbi algorithm.
Keywords :
Viterbi decoding; automatic repeat request; channel capacity; convolutional codes; error correction codes; redundancy; reliability theory; Viterbi algorithm; adaptive-feedback error-correction scheme; convolutional codes; hybrid ARQ schemes; incremental redundancy; reliability output decoding; repeat request scheme; unreliable code sequence segments; Additive white noise; Automatic repeat request; Convolutional codes; Cyclic redundancy check; Decoding; Feedback; Reliability theory; Signal to noise ratio; Throughput; Viterbi algorithm;
Conference_Titel :
Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7501-7
DOI :
10.1109/ISIT.2002.1023560
