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Press Release: Comsof & Bentley at FTTH Conference 2010 in Lisbon
 
 
 
 
 
 

FiberPlanIT: sample results

This section presents an example of a result which has been accomplished using Comsof's FiberPlanIT solution.
We simulate the greenfield provisioning with a GPON fiber network of the totality of a community in Belgium. We calculated the optimal tree which connects all houses to the Local Exchange office (LEX), using mainly buried cables. However, we optimized the cost by also allowing the cables to be deployed on:

  • the facade of houses when they form a continuous row. In the city center, houses are located close enough to one another so cables can be deployed on the facade of the houses, thus evading expensive digging costs. The FiberPlanIT software deduced automatically, based on the GIS-data, where facade-possibilities are present, and used these as much as possible.
  • electricity poles, which are typically more present in the more rural areas. We determined the location of the poles from another data source, and detected which houses are within reach of a pole. Aerial cables can be deployed here, once again circumventing expensive (and long) trenches towards houses in the more rural areas.
The use of facade and aerial cables in this case accomplishes a 10% lower trenching cost compared to the case where all cables are buried.

The figure below shows the entire community of Zele and the cables deployed to provide all the homes with fiber. Note the difference between the drop points: buried (black), aerial (blue) and on the facade (green). The tree connecting all drop points to the LEX is te optimal tree connecting all these points: aerial and facade paths have been used as much as possible, street crossings have been minimized, and the total length of the tree has been optimized.



The following figure illustrates the level of detail that the FiberPlanIT provides: a few crossroads can be seen; the white lines are the streets. Black and green squares are drop cabinets (buried and aerial), while the red line represents the cable deployed towards the drop cabinets. Our software miminizes the number of street crossings, since the cost of digging under the street is typically much higher than deploying cables along the street. This can clearly be seen on the figure.



Note that the simulations presented here belong mainly to the architectural and topology domain, and these are only a part of the capabilities of the FiberPlanIT platform. Some other features which are also present in the software:

  • OpEx modelling
  • Partial covering of the area
  • MDU: take Multi-Dwelling Units in account: derive the number of apartments per building, and use these in the provisioning calculation phase
  • P2P (active) network modelling
  • ...

Further information

If you want to receive more information about FiberPlanIT or Comsof's experience in modelling FTTx access network deployments, create a user account here. You will then be granted access to the FiberPlanIT documentation-page.

 
 
 
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