First Mile Access Networks and Enabling Technologies

Business Case for CWDM and Access Networks

CWDM implementation, although low cost, does not yet justify deployment to the end user on account of its magnitude in terms of bandwidth offered. CWDM, on the other hand, is a pure metro access solution. This means that the beneficiaries of such a solution are enterprises and customers who may subsequently pass on the data after de-aggregation to other consumers. Typically, CWDM networks are installed in ring topologies with wavelengths dropping to individual nodes. The main business case validation for CWDM networks is that multiple wavelengths can be used in the same fiber at low costs; hence, these networks can reach a higher number of users at longer distances but are still low cost. Typically for ...