Survivability of a integrated fiber-wireless (FiWi) access networks

In past few years there is a huge development in the field of FiWi technology due to continuously increase in the number of users of the internet. FiWi technology now a day´s proving itself a main tool in the field of telecommunication by its own merits over the other existing technologies. The FiWi technology provides huge amount of bandwidth and stability to the network user in a flexible manner i.e. network provide “Anywhere Anytime” connection service to the user at very high speed. The existing technology viz PON offers higher bandwidth and stability but at relatively higher cost due to the use of expensive optical devices. On the other hand WMN technology offers us communication among the users with a better flexibility at relatively lower cost but its bandwidth is limited due to channel interference. So, the efforts are put to combine the merits of both the technologies resulting in a new technology named as “FiWi”. Various algorithms are proposed to enhance the performance of a FiWi access network. In this paper, a detailed discussion is made on survivability issues in FiWi networks against the different level of failures in the network. This paper is basically a review paper in which the main aim is to emphasize on the recent trends of survivability in the FiWi networks.