Versatile broadband service delivery on PON employing a hybrid optical code division multiple access/radio-over-fiber system

2008 ◽  
Author(s):  
T. Spuesens ◽  
B. Huiszoon ◽  
E. Tangdiongga ◽  
A.M.J. Koonen
Keyword(s):  
Service Delivery ◽  
Code Division Multiple Access ◽  
Multiple Access ◽  
Radio Over Fiber ◽  
Fiber System ◽  
Broadband Service ◽  
Code Division Multiple ◽  
Radio Over Fiber System

PERFORMANCE ANALYSIS OF SEVERAL QUASI-ORTHOGONAL CODES OPTICAL CDMA FOR RADIO-OVER-FIBER SYSTEM

2013 ◽  
Vol 37 (3) ◽  
pp. 415-426
Author(s):  
Chih-Ta Yen ◽  
Ing-Jr Ding ◽  
Cheng-Mu Tsai
Keyword(s):  
Multiple Access ◽  
Cross Correlation ◽  
Low Cost ◽  
Multiple Access Interference ◽  
Radio Over Fiber ◽  
Base Stations ◽  
Optical Cdma ◽  
Fiber System ◽  
Spectral Coding ◽  
Code Division Multiple

An optical code-division multiple-access (OCDMA) network for radio-over-fiber (RoF) transmissions was proposed. The network encoders/decoders (codecs) were structured based on arrayed-waveguide-grating (AWG) routers coded using modified prime codes (MPCs). In the proposed system, the lower in-phase cross correlation could reduce the beating noise, and in the proposed study, its performance was compared with that of a conventional system that uses M-sequence and Walsh-Hadamard codes. The performance of both systems was numerically evaluated by analyzing the effect of phase-induced-intensity noise (PIIN). The results showed that the new code families that had lower cross correlation can suppress the intensity of the noise and effectively cancel out the multiple-access interference (MAI) in balanced detection processes, which improved system performance. By using the proposed MPC-coded OCDMA ROF network codecs, each network required only two AWG routers to accomplish the spectral coding of radio base stations (RBSs) and the decoding of control stations (CSs), resulting in a simple and low-cost system. Therefore, it is possible to produce interference- and crosstalk-free optical CDMA systems for RoF transmissions.

scholarly journals Author Correction: Subpixel three-dimensional laser imaging with a downscaled avalanche photodiode array using code division multiple access

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Fan Xu ◽  
Yuan-Qing Wang ◽  
Xiao-Fei Zhang ◽  
Cai-Yun Wang
Keyword(s):  
Code Division Multiple Access ◽  
Multiple Access ◽  
Three Dimensional ◽  
Avalanche Photodiode ◽  
Laser Imaging ◽  
Photodiode Array ◽  
Code Division Multiple

A Correction to this paper has been published: https://doi.org/10.1038/s42005-021-00520-8.

Sign in / Sign up

Export Citation Format

Share Document