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Chung, Jin-Ho
Communications and Code Design Lab (CCDL)
Research Interests
  • Algebraic sequences, biometric authentication, data compression for machine learning, Wi-Fi systems

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New families of optimal variable-weight optical orthogonal codes with high weights

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Title
New families of optimal variable-weight optical orthogonal codes with high weights
Author
Chung, Jin-HoYang, Kyeongcheol
Issue Date
2015-08
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON INFORMATION THEORY, v.61, no.8, pp.4511 - 4517
Abstract
The optical orthogonal codes (OOCs) have been widely used as spreading codes in communication systems employing the unipolar transmission. They are classified into constant-weight OOCs (CW-OOCs) and variable-weight OOCs (VW-OOCs) according to the number of distinct Hamming weights which their codewords have. In this paper, we present a new generic construction of VW-OOCs of length (q - 1) N from a CW-OOC of length N, where q is a prime power and gcd(q - 1, N) = 1. As a result, three new families of optimal VW-OOCs with a maximum correlation value 1 are obtained. In particular, these families can have the codewords of high weights, while most of the previously known optimal VW-OOCs have only codewords of weight less than 8.
URI
https://scholarworks.unist.ac.kr/handle/201301/13045
URL
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7118219
DOI
10.1109/TIT.2015.2441695
ISSN
0018-9448
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