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Estimation of Convolutional Interleaver Parameters using Linear Characteristics of Channel Codes  

Lee, Ju-Byung (Hanyang university)
Jeong, Jeong-Hoon (Hanyang university)
Kim, Sang-Goo (Hanyang university)
Kim, Tak-Kyu (Hanyang university)
Yoon, Dong-Weon (Hanyang university)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.48, no.4, 2011 , pp. 15-23 More about this Journal
Abstract
An interleaver rearranges a channel-encoded data in the symbol unit to spread burst errors occurred in channels into random errors. Thus, the interleaving process makes it difficult for a receiver, who does not have information of the interleaver parameters used in the transmitter, to de-interleave an unknown interleaved signal. Recently, various researches on the reconstruction of an unknown interleaved signal have been studied in many places of literature by estimating the interleaver parameters. They, however, have been mainly focused on the estimation of the block interleaver parameters required to reconstruct the de-interleaver. In this paper, as an extension of the previous researches, we estimate the convolutional interleaver parameters, e.g., the number of shift registers, a shift register depth, and a codeword length, required to de-interleave the unknown data stream, and propose the de-interleaving procedure by reconstructing the de-interleaver.
Keywords
convolutional interleaver; parameter estimation; Gaussian elimination; linear block codes; communication theory;
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