@article{Ouveysi2010Topology,
author = {Iradj Ouveysi and Feng Shu and Wei Chen and
Gangxiang Shen and Moshe Zukerman},
title = {Topology and routing optimization for congestion
minimization in optical wireless networks},
journal = {Optical Switching and Networking},
volume = {7},
number = {3},
pages = {95-107},
month = {Jul.},
year = {2010},
abstract = {Optical wireless networks have appealing features
such as very high broadband data rates and cost effectiveness. They represent a
potential alternative to the last mile (first mile) wireless access problem.
However, they are also highly vulnerable to external disturbances such as
adverse weather and building sway. In this paper, we develop robust and
efficient methods for outdoor optical wireless networks by jointly considering
topology optimization and survivability strategies. We propose linearized
congestion minimization schemes with working and protection paths (LCM¨CWP), in
which a mixed integer linear program is formulated to choose the optimal working
and protection paths for every OD pair such that the network congestion is
minimized. In particular, the objective is to minimize the maximum amount of
traffic on the links. To solve realistically sized problems, we consider a
restricted version of the LCM¨CWP, in which only limited sets of candidate
working and protection paths are considered. A simple algorithm is developed to
find candidate working and protection paths for each origin-destination (OD)
pair. Implementation of our LCM¨CWP schemes demonstrates the efficiency of our
approach in terms of the number of constraints and solution time. It also shows
that our approach is applicable to realistically sized networks.}
}