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Frontiers of Optoelectronics

Front. Optoelectron.    2019, Vol. 12 Issue (2) : 208-214
Analysis on multiple optical line terminal passive optical network based open access network
Love KUMAR1(), Amarpal SINGH2, Vishal SHARMA3
1. I K Gujral Punjab Technical University, Kapurthala, Punjab 144603, India
2. Beant College of Engineering and Technology, Gurdaspur, Punjab 143521, India
3. Shaheed Bhagat Singh State Technical Campus, Ferozepur, Punjab 152004, India
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Passive optical networks (PONs) offer sufficient bandwidth to transfer huge amount having different packet sizes and data rates being generated by fusion of various networks. Additionally, multiple optical line terminals (OLTs) PONs reduce the computational complexity of data processing for nonuniform traffic. However,in order to improve the bandwidth allocation efficiency of a mixture of service providers, dynamic bandwidth algorithm (DBA) is needed for uplink communication. In this paper, a PON based open access network (OAN) is analyzed for bi-directional communication at various data rates. Multiple wavelengths are used to modulate the data of various service providers to evade the complicated DBA for uplink data broadcasting. The performance of the network is reported in terms of bandwidth exploitation, uplink effectiveness, overhead-to-data ratio and time cycle duration. The network is analyzed at various data rates to reveal the data accommodation capacity.

Keywords passive optical network (PON)      open access network (OAN)      optical line terminal (OLT)      hybrid network     
Corresponding Author(s): Love KUMAR   
Just Accepted Date: 27 July 2018   Online First Date: 23 October 2018    Issue Date: 03 July 2019
 Cite this article:   
Love KUMAR,Amarpal SINGH,Vishal SHARMA. Analysis on multiple optical line terminal passive optical network based open access network[J]. Front. Optoelectron., 2019, 12(2): 208-214.
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Fig.1  Architecture for multi-OLT multi-wavelength PON based OAN
Fig.2  Timing diagram for multi-OLT multi-wavelength PON based OAN
symbol parameter value
NOLT number of OLT 4
n number of ONUs 3−8
Tcycle time cycle (ms) variable
PLk (Group-I and II) packet length (bytes) 1500 and 1024
B data transmission speed (Gpbs) 0.25, 0.5, 1
Wk grant maximum transmission window variable
fiber length 10−20 km
Tab.1  Symbol and parameters
Fig.3  Time cycle variation with number of ONUs
Fig.4   Bandwidth exploitation at various data transmission speed
Fig.5  Uplink efficiency at various data transmission speed
Fig.6  Overhead-to-data ratio at different data rates
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