Title :
Performance Analysis of 2-D Optical Codes with Arbitrary Cross-Correlation Values under the Chip-Asynchronous Assumption
Author :
Hsu, Chia-Cheng ; Yang, Guu-Chang ; Kwong, Wing C.
Author_Institution :
Dept. of Electr. Eng., Nat. Chung-Hsing Univ., Taichung
Abstract :
In this letter, the performance of two-dimensional (2-D) optical codes in incoherent optical code-division multiple-access systems is analyzed without the traditional pessimistic chip-synchronous assumption. We apply a combinatorial method for a more accurate analysis, which can be generalized to 2-D optical codes with arbitrary maximum cross-correlation values. As numerical examples, the performances of 2-D optical codes with the maximum cross-correlation values of one and two are compared under the chip-synchronous and chip-asynchronous assumptions
Keywords :
code division multiple access; optical correlation; 2-D optical codes; arbitrary maximum cross-correlation; chip-asynchronous assumption; combinatorial method; incoherent O-CDMA system; optical code-division multiple-access; Councils; Error probability; Gaussian approximation; Multiaccess communication; Performance analysis; Timing; Two dimensional displays; Upper bound;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.061701
