Adaptive Interleaving for Bit-Interleaved Coded Modulation
Conference: SCC'08 - 7th International ITG Conference on Source and Channel Coding
01/14/2008 - 01/16/2008 at Ulm, Germany
Proceedings: SCC'08
Pages: 6Language: englishTyp: PDF
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Authors:
Stierstorfer, Clemens; Fischer, Robert F. H. (Lehrstuhl für Informationsübertragung, Friedrich–Alexander–Universität Erlangen–Nürnberg, Cauerstraße 7/LIT, 91058 Erlangen, Germany)
Abstract:
In this paper interleaver design for bit-interleaved coded modulation and systems with channel-state information at the transmitter is investigated. Based on the bit level capacities of an equivalent channel model an advantageous interleaver design is proposed. Understanding the varying level capacities as the result of a “fading” process, suited bit metric arrangements in the decoder can significantly increase the performance. Numerical results show the superiority of the assessed approach over conventional interleaving and even over rate and power loading.