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Measuring the Resiliency of Cellular Base Station Deployments

Published

Author(s)

David W. Griffith, Richard A. Rouil, Antonio Izquierdo Manzanares, Nada T. Golmie

Abstract

The National Public Safety Telecommunications Council (NPSTC) has defined Resiliency as the ability of a network to withstand the loss of assets and to recover quickly from such losses. How to measure the resiliency of a base station deployment is an important consideration for network planners and operators. In this paper, we propose a resiliency measurement method in conjunction with a performance metric such as coverage or supported throughput, where we define the resiliency as the maximum number of sites that can fail before the metric falls below a minimum acceptable threshold. Because the number of combinations of failures increases exponentially with respect to the number of sites that compose a given deployment, we introduce a heuristic that allows us to get reasonably accurate estimates of the lowest, highest, and average values of the metric for a given failure count. We use an example deployment to demonstrate how the resiliency metric can be used to identify sites that have a disproportionate impact on performance; the network planner can harden these sites or, if considering a future deployment, modify the site placement to reduce the effect of the high- impact sites.
Proceedings Title
IEEE Wireless Communications and Networking Conference 2015
Conference Dates
March 9-12, 2015
Conference Location
New Orleans, LA
Created March 11, 2015, Updated February 19, 2017