Turbo Codes over the Real Field

Details Turbo Codes over the Real Field Turbo Codes over the Real Field

2003-12-13

arxiv.org/abs/math/0312272v1

Mathematics

Combinatorics

13 pages, no figures

Scientific paper

In this article we extend the idea of Turbo codes onto the Real Field. The channel is taken to result in block erasures and the only noise as being that due to quantization. The decoding in this case is reduced to reconstruction of the lost values. The encoding is done using critically sampled filter banks and introduction of an interleaver is found to reduce the mean square quantization error drastically. The permutation that gives the best recoverability is obtained in the 2 Channel case. Results are also obtained for M channel case. The algorithm for reconstruction of the lost values in the absence of quantization noise is obtained.

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