Chutima Prommak and Ekkaluk Eksook

pp. 263 - 269

Abstract

Network reliability is an important issue in the topological design of the 3G cellular networks in order to guarantee
consistent services. This paper aims to present network reliability analysis of various network topologies, including spanning
tree, single ring, multiring, and two versions of hybrid ring-and-tree. We derived reliability analysis models for the hybrid
ring-and-tree topologies in terms of the operational probability of the network links. The preliminary results show that the
network reliability of the hybrid multiring-and-tree topologies is 116.78% and 13.78% higher than that of the spanning tree
and the single ring topology, respectively, while it is only about 37.3% less than that of the pure multiring topologies.