Title :
Performance of Serial Concatenated Codes under Iterative Decoding and Different Update Modes
Author :
Wolf, Anne ; Ertel, Jochen ; Finger, Adolf
Author_Institution :
Dresden Technol. Univ.
Abstract :
Concatenated codes are typically decoded using iterative methods. The sum-product algorithm can be shown to be optimal for cycle-free codes. In this paper two commonly used versions of the sum-product algorithm are investigated with respect to their performance for concatenated codes with cycles. Various serial concatenated codes with an inner accumulator are studied. Simulation results for both update modes are presented for repeat-accumulate codes, accumulate-repeat-accumulate codes, and product-accumulate codes
Keywords :
concatenated codes; iterative decoding; accumulate-repeat-accumulate codes; cycle-free codes; iterative decoding; product-accumulate codes; repeat-accumulate codes; serial concatenated codes; sum-product algorithm; Concatenated codes; Encoding; Error correction codes; Fingers; Iterative decoding; Iterative methods; Parity check codes; Sum product algorithm; Tree graphs; Visualization;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2006. SPAWC '06. IEEE 7th Workshop on
Conference_Location :
Cannes
Print_ISBN :
0-7803-9710-X
Electronic_ISBN :
0-7803-9711-8
DOI :
10.1109/SPAWC.2006.346404
