Survivable Passive Access Network (SPAN)
Motivation
Wavelength Division Multiplexed Passive Optical Networks are subjected to wide variety of incidental failures. Out of these failures mostly occur at physical layer like fiber cut, node failures etc, so it is preferred in WDM-PONs to provide fault management (survivability) at link layer level. In this research, our objective is to determine the factors, which can increase the scope of survivability at link layer, not available currently
Current Progress
We propose “Survivable Passive Access Network” (SPAN), a new protection scheme for WDM-PONs. It is practical and cost effective architecture with underlying principle resides on Free Spectral Range (FSR) characteristic of Array Waveguide Grating (AWG). SPAN is a multi-level protection scheme that has potential to be highly efficient in terms of performance budget and time budget. The SPAN architecture has been validated by simulations using a commercial software packages, named OptSim TM .
Simulation Setup
Figure, Experimentation Setup of SPAN with External Modulation in OptSim TM
Researchers
International Collaborator
Sponsor
- Higher Education Commission Pakistan
Graduate Students
Publications
M Umer Wasim, S.M.H Zaidi, Y Raja, N Ghani , R Ahmad, “Extended Survivable Passive Access Network (e-SPAN)”. “High Capacity Optical Networks and Enabling Technologies” (HONET 2006). M Umer Wasim, S.M.H Zaidi, Y Raja, N Ghani, R Ahmad, “ Survivable Passive Access Network (SPAN) ”. “Next-Generation Communication and Sensor Networks, Optic East-SPIE” (2006).
M Umer Wasim, S.M.H Zaidi, Y Raja, N Ghani , R Ahmad, “ Wavelength Division Multiplexing Based Passive Optical Networks: An Overview ”, “ High Capacity Optical Networks and Enabling Technologies” (HONET 2005). |
