Title :
Protection of WDM PON systems based on modified 2-OLT architecture
Author :
Rawshan, Fahmida ; Park, Yu-Seop
Author_Institution :
Dept. of Electron. Eng., Kookmin Univ., Seoul, South Korea
Abstract :
In this paper, we propose a novel protection architecture of passive optical network (PON) system. Two optical line terminals (OLTs) are connected to each other as well as to the access area. This network can sustain services to access area and restores normal operation in faulty conditions. Subscribers are divided into two groups to reflect priority based bandwidth allocation. WDM access increases the efficiency of the system by operating both OLTs using different wavelengths in normal condition. During fault, a Shared-bandwidth allocation scheme is employed in operating the survived OLT. Performance analysis shows the improvement of the proposed scheme over an existing scheme.
Keywords :
bandwidth allocation; passive optical networks; wavelength division multiplexing; 2-OLT architecture; WDM PON systems; optical line terminals; passive optical network system; priority based bandwidth allocation; shared-bandwidth allocation scheme; Bandwidth; Channel allocation; Delays; Optical network units; Passive optical networks; Throughput; Wavelength division multiplexing; Passive optical network; Self-similar traffic; WDM; multi-OLT;
Conference_Titel :
Electrical Information and Communication Technology (EICT), 2013 International Conference on
Conference_Location :
Khulna
Print_ISBN :
978-1-4799-2297-0
DOI :
10.1109/EICT.2014.6777888
