Service composition for mobile personal networks

Personalised networks (PN) introduce new mobility management challenges since individual devices participating in a PN may exhibit different mobility behaviour relative to one another and to human users. Mobility events may result in devices either leaving or joining the PN. In this paper we propose that PN mobility be managed by redirecting ongoing application data streams between endpoint devices in the PN. We describe a scheme to facilitate application level inter-device mobility by extending the PN to include composed network based adaptation services that adapt and reroute ongoing data streams to new endpoint devices. In order to cope with device heterogeneity and mobility, services are composed on demand and adapted in response to changes in the availability of endpoint devices. We analyse simulation results which show that our approach enables enhanced mobility handling over a range of conditions.