A model for reliable wireless access network topology design

In wireless access network design, a tree-like topology is usually used due to its minimum connectivity and the economy of scale on network link costs. However, the tree topology is vulnerable to any single link/component failure. There are several strategies in designing a reliable network topology. This paper gives reliability analysis of typical wireless access network topologies, which are spanning tree, ring and multiring. We present a reliable network design model for wireless backhaul network design based on the multiring network topology. We formulate the problem of reliable wireless backhaul network design as a mixed integer-programming model to minimize the network cost while satisfying traffic requirements.