Title :
Constructions of Optimal 2-D Optical Orthogonal Codes via Generalized Cyclotomic Classes
Author :
Han Cai ; Hongbin Liang ; Xiaohu Tang
Author_Institution :
Inf. Security & Nat. Comput. Grid Lab., Southwest Jiaotong Univ., Chengdu, China
Abstract :
Optical orthogonal codes (OOCs) are widely used as spreading codes in optical fiber networks. In this paper, a bound on the code size of 2-D OOCs with both at most one-pulse per wavelength (AM-OPPW) and at most one-pulse per time slot (AM-OPPTS) is derived. Accordingly, two constructions of optimal 2-D OOCs with both AM-OPPW and AM-OPPTS are proposed via the generalized cyclotomic classes. Furthermore, optimal 2-D OOC with AM-OPPW can be also constructed by adding more codewords into the 2-D OOCs with both AM-OPPW and AM-OPPTS.
Keywords :
optical fibre networks; orthogonal codes; 2D OOC; AM-OPPTS; AM-OPPW; generalized cyclotomic classes; optical fiber networks; optimal 2D optical orthogonal codes; spreading codes; Correlation; Educational institutions; Hamming weight; Information security; Multiaccess communication; Optical fiber networks; Two dimensional displays; AM-OPPTS; AM-OPPW; Optical code division access system; generalized cyclotomic classes; two-dimensional optical orthogonal code (2-D OOC);
Journal_Title :
Information Theory, IEEE Transactions on
DOI :
10.1109/TIT.2014.2370054