Survivability Issues in Wireless Mobile Networks
نویسندگان
چکیده
Understanding the functionality of a communications system or network in the wake of failures is provided by survivability analysis. A great deal of attention has been focused on survivability of high speed networks and of ad hoc networks supporting battleeeld communications. Very little attention has been placed on the unique survivability issues pertaining to mobile systems supporting cellular and PCS type communications. The tremendous increase in subscribers to these systems implies that users will soon demand the same system functionality in terms of service guarantees that is characteristic of today's wireline based telecommunications networks. This paper presents a framework for survivability analysis of mobile systems that addresses the issues presented by mobility, a dynamic environment, and the supporting xed infrastructure. Survivability measures and restoration techniques are discussed. A sample network and various failure scenarios are used to illustrate calculation of outage based on the ANSI Technical Subcommittee T1A1 Technical Report Number 42.
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