Title :
Interleaver and Accumulator Design for Systematic Repeat-Accumulate Codes
Author :
Johnson, Sarah ; Weller, Steven
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Newcastle Univ., NSW
Abstract :
Recent promising theoretical results for repeat-accumulate (RA) codes, together with their extremely simple encoding, motivates this investigation into the design and implementation of practical RA codes. We consider two main issues: the construction of the interleaver in fixed length codes using combinatorial designs; and the improvement of the error floor performance of RA codes by modifying the accumulator
Keywords :
combinatorial mathematics; interleaved codes; accumulator design; combinatorial designs; fixed length codes; interleaver; systematic repeat-accumulate codes; Approximation methods; Concatenated codes; Convolutional codes; Encoding; Floors; H infinity control; Maximum likelihood decoding; Parity check codes; Signal to noise ratio; Turbo codes;
Conference_Titel :
Communications Theory Workshop, 2005. Proceedings. 6th Australian
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-7803-9007-5
DOI :
10.1109/AUSCTW.2005.1624218
