Abstract
Indoor location-based services (iLBS) are extremely dynamic and changeable, and include numerous resources and mobile devices. In particular, the network infrastructure requires support for high scalability in the indoor environment, and various resource lookups are requested concurrently and frequently from several locations based on the dynamic network environment. A traditional map-based centralized approach for iLBSs has several disadvantages: it requires global knowledge to maintain a complete geographic indoor map; the central server is a single point of failure; it can also cause low scalability and traffic congestion; and it is hard to adapt to a change of service area in real time. This paper proposes a self-organizing and fully distributed platform for iLBSs. The proposed self-organizing distributed platform provides a dynamic reconfiguration of locality accuracy and service coverage by expanding and contracting dynamically. In order to verify the suggested platform, scalability performance according to the number of inserted or deleted nodes composing the dynamic infrastructure was evaluated through a simulation similar to the real environment.
Highlights
An indoor location-based service [1] is becoming more prevalent owing to increase in the number of smartphone users
In order to provide these dynamic services among numerous mobile devices and service resource devices in an indoor environment, an opportunistic Indoor location-based services (iLBS) network system and an architecture for service binding are required
An infrastructure for an iLBS in a dynamic indoor environment is necessary for an efficient architecture that reflects a different approach to a traditional centralized platform
Summary
An indoor location-based service (iLBS) [1] is becoming more prevalent owing to increase in the number of smartphone users. A self-organizing and fully distributed iLBS system would not need to maintain or employ a centralized map and would be dynamically adaptive to changes in the indoor infrastructure. The dynamic space must be reconfigured without influencing the overall infrastructure under transient circumstances This is one of the self-organizational properties of the proposed architecture, which can support scalability of the physical space or of logical service groups. The proposed fully distributed iLBS architecture improves the scalability of the infrastructure because there is no need to maintain a map of the entire building or complex in the central server.
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