Browse > Article
http://dx.doi.org/10.6109/jkiice.2013.17.5.1138

Analysis of cross-correlation functions of non-linear sequences  

Cho, Sung-Jin (부경대학교)
Yim, Ji-Mi (부경대학교)
Abstract
Cross-correlation functions of maximal period sequences have been studied for decades. In this paper, we find the cross-correlation values of non-linear sequences $S_a^r(t)=Tr_1^m\{[Tr_m^n(a{\alpha}^t+{\alpha}^{dt})]^r\}$ having the maximal period $2^n-1$ for Niho type decimation $d=2^{m-2}(2^m+3)$, where n=2m. In particular, we call d Niho type decimation in case $d{\equiv}1(mod\;2^m-1)$. And we analyze the cross-correlation distributions of $S_a^r(t)$ when the phase shift ${\tau}=(2^m+1)k(0{\leq}k{\leq}2^m-2)$ and provide experiment results.
Keywords
cross-correlation function; decimation; trace; finite fields;
Citations & Related Records
연도 인용수 순위
  • Reference
1 M.K. Simon, J.K. Omura, R.A. Scholtz, and B.K. Levitt, "Spread spectrum communication," vol.I, Computer Science Press, Rockville, MD, 1985.
2 J. Foerster, "The performance of a direct-sequences spread ultra wideband system in the presence of multipath, narrowband, interference, and multiuser interference," Proc. IEEE Int. Conf. on Ultra Wideband Systems and Technologies, pp.87-91, 2002.
3 K. Fazel and S. Kaiser, "Multi-carrier and spread spectrum system," John Wiley and Sons Ltd., 2003.
4 M. K. Simon, J. K. Omura, R. K. Scholtz and B. K. Levitt, "Spread spectrum communications handbook," McGraw-Hill, Inc., 1994.
5 Y. Niho, "Multi-valued cross-correlation functions between two maximal linear recursive sequences," Ph.D thesis, University of Southern California, 1972.
6 T. Helleseth, "Some results about the cross-correlation function between two maximal linear sequences," Discrete Mathematics, Vol. 16, No. 3, pp. 209-232, 1976.   DOI   ScienceOn
7 P. Rosendahl, "Niho type cross-correlation functions and related equations," Ph.D thesis, Turku center for computer science, 2004.
8 R. Gold, "Maximal recursive sequences with 3-valued recursive cross-correlation functions," IEEE Trans. Inf. Theory, vol. IT-14, no. 1, pp. 154-156, Jan. 1968.
9 T. Kasami, "Weight distribution formula for some class of cyclic codes," Coordinated Science Laboratory, University of Illinois, Urbana, Tech. Rep. R-285(AD632574), 1966.
10 J. S. No and P. V. Kumar, "A New Family of Binary Pseudorandom Sequences Having Optimal Periodic Correlation Properties and Large Linear Span," IEEE Trans. Inform. Theory, vol. 35, no. 2, pp. 371-379, Mar. 1989.   DOI   ScienceOn
11 S.W. Golomb, "Shift register sequences," Holden-Day, Inc, 1967.
12 조성진 외 2인, "알기 쉬운 유한체론," 경문사, 2005.
13 T. Helleseth and P.V. Kumar, "Sequences with low correlation," in Handbook of Coding Theory, ed. V. Pless and C. Huffman, Elsevier, Amsterdam, The Netherlands, 1998.