What we are focusing in this article is delivery of triple play services through passive optical networks as mentioned in recommendations and standards such as ITU-T G.983, ITU-T G.984 and IEEE 802.3ah. The PON architecture has many options in network topologies such as FTTH (Fiber to the home), FTTB (Fiber to the building or Fiber to the business), FTTC (Fiber to the cabinet), FTTN (Fiber to the neighborhood) etc. In order to decide the topology that would better serve our purpose, we need to explore further.
Deployment of FTTx needs a holistic approach though the implementation work can be divided and subdivided as much as you like for easy management. At the beginning a detailed study of geography and demography of the area under consideration must be thoroughly conducted. The staff of the service providing company must acquire sufficient knowledge about the environmental variables, political and bureaucratic influences, existing infrastructures in the area under proposal. For dealing with local authorities you may need a good public relations officer, who can get the things done.
Data collection as much as possible and as many kinds as possible will only help you, but remember that waiting to start parallel activities till data gathering process completes is not recommended. A study on the population density and a survey for potential subscribers would be the best approach. When you carry out such a survey or gathering information from other data providers, do explore the percentage of residential subscribers and enterprise customers in the area. Also, conduct a survey on customer expectation from your fiber deployment such as bandwidth requirement and services and content choices. As you know, we can take the current bandwidth as a reference baseline to estimate future bandwidth demands.
Most of the service locations would have existing houses and businesses, which is termed as Brownfield. If the service area is Brownfield, there are many challenges to be faced compared to that of Greenfield. Deployment in Greenfield is comparatively easier and quicker than that in Brownfield. Already available telecommunication infrastructures must be taken in to consideration to decide on the topology. Some locations need mixed approaches.
Depending on the geography of the location, we have decide on network construction such as underground or aerial. This is also influenced by environmental as well as ROW (right of way) etc. Aerial deployments are less expensive and faster, but difficult to get the right of way in many countries.