Open AccessPerformance and capacity analysis of Poisson photon-counting based Iter-PIC OCDMA systems
Author(s) -
Lingbin Li,
Xiaolin Zhou,
Rong Zhang,
Dingchen Zhang,
Lajos Hanzo
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.025954
Subject(s) - bit error rate , shot noise , computer science , code division multiple access , photon counting , interference (communication) , poisson distribution , electronic engineering , channel capacity , single antenna interference cancellation , photon , physics , optics , channel (broadcasting) , decoding methods , algorithm , telecommunications , detector , mathematics , statistics , engineering
In this paper, an iterative parallel interference cancellation (Iter-PIC) technique is developed for optical code-division multiple-access (OCDMA) systems relying on shot-noise limited Poisson photon-counting reception. The novel semi-analytical tool of extrinsic information transfer (EXIT) charts is used for analysing both the bit error rate (BER) performance as well as the channel capacity of these systems and the results are verified by Monte Carlo simulations. The proposed Iter-PIC OCDMA system is capable of achieving two orders of magnitude BER improvements and a 0.1 nats of capacity improvement over the conventional chip-level OCDMA systems at a coding rate of 1/10.