A cost analysis on optical access network architectures

This paper investigates the costs of building optical access networks by modeling cost functions on STAR, PON and ADS structures. A number of cost factors including the number of ONU, user bandwidth, distribution factor of a splitter, and cabling were considered in estimating the IFC of each configuration. Our analysis shows that the PON and ADS structures have lower costs than STAR at low user bandwidth, but increases over STAR at high user bandwidth.