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http://dx.doi.org/10.7840/KICS.2012.37C.5.384

Efficient Blind Estimation of Block Interleaver Parameters  

Jeong, Jin-Woo (한양대학교 전자컴퓨터통신공학과 이동 및 우주통신 연구실)
Choi, Sung-Hwan (한양대학교 전자컴퓨터통신공학과 이동 및 우주통신 연구실)
Yoon, Dong-Weon (한양대학교 전자컴퓨터통신공학과 이동 및 우주통신 연구실)
Park, Cheol-Sun (국방과학연구소)
Yoon, Sang-Bom (LIG넥스원 주식회사)
Abstract
Recently, much research on blind estimation of the interleaver parameters has been performed by using Gauss-Jordan elimination to find the linearity of the block channel code. When using Gauss-Jordan elimination, the input data to be calculated needs to run as long as the square multiple of the number of the interleaver period. Thus, it has a limit in estimating the interleaver parameters with insufficient input data. In this paper, we introduce and analyze an estimation algorithm which can estimate interleaver parameters by using only 15 percent of the input data length required in the above algorithm. The shorter length of input data to be calculated makes it possible to estimate the interleaver parameters even when limited data is received. In addition, a 80 percent reduction in the number of the interleaver period candidates increases the efficiency of analysis. It is also feasible to estimate both the type and size of the interleaver and the type of channel coding.
Keywords
blind estimation; Gauss elimination; block interleaver;
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