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Introduction

Recently proposed mobile networking architectures and protocols involve predictive mobility management schemes. For example, an optimization to a Mobile IP-like protocol using IP-Multicast is described in [1]. Hand-offs are anticipated and data is multicast to nodes within the neighborhood of the predicted handoff. These nodes intelligently buffer the data so that no matter where the mobile host (MH) re-associates after a handoff no data will be lost. Another example [2] [3] proposes deploying mobile floating agents which decouple services and resources from the underlying network. These agents would be pre-assigned and pre-connected to predicted user locations. Finally, this paper will focus on the Rapidly Deployable Radio Networks Project [4] [5] as an example of a predictive mobile network. The Virtual Network Configuration (VNC) algorithm developed as part of RDRN uses the predictive mechanism for every phase of configuration, including location and handoff.

Progress is being made in research involving predictive system and network management [6]. This paper develops a variation of the Virtual Network Configuration Algorithm as proposed for the RDRN [5] for a predictive network management system. The predictive capability of such a system can be used to help optimize its own operation by controlling the management of the polling rate. Both VNC and a modification of VNC which results in the predictive management algorithm developed in this paper are modifications of the Time Warp Algorithm [7]. Finally a discussion of how predictive mobile networks and predictive network management systems should interact is presented.



Steve Bush
Thu Feb 27 15:34:42 CST 1997