FSO links deployed over more than a few hundred
meters may not provide the kind of resiliency demanded by service providers. However,
even if FSO systems capable of longer ranges were deployed, the overall cost per service
point would not be significantly higher). Therefore, the upfront capital expenditure
(CAPEX) of extending the fiber-like services to a new service point can be less than
$15,000 per service point. From each service point, services can be further extended to
more service points for additional upfront CAPEX of less than $15,000 for each added
service point. This cost is almost an order of magnitude less than the cost of extending
fiber-grade, as discussed previously.
The cost as well as the manageability of the network can be further improved by
using optical wireless mesh equipment instead of integrating different equipment as
discussed in the preceding section. Such mesh equipment consists of multiple FSO
links and a switching engine integrated in a single package, reducing overall cost and
simplifying manageability.
Vendors Promoting This Solution
There are two different scenarios for deploying optical wireless mesh networks.
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