RAPID LOCALIZATION PLATFORM FOR LOCATION BASED APPLICATIONS IN SELF-ORGANIZED NETWORKING SYSTEMS

摘要

Time-critical Location Based Service (LBS) applications in mobile ad hoc networks (MANETs) require fast localization. An On-Demand Fast Localization (ODFL) start from multi-coordinate systems, and the position transformation is integrated with LBS application information transmissions. The framework of ODFL turns two pipe-lined procedures into two semi-concurrent procedures by employing coordinate system transformation on a per hop basis, which consists of three components: (1) Local Coordinate System (LCS) construction; (2) embedded information selection; and (3) position transformation.

主权项

1. A self-organized networking system comprising:
a plurality of mobile users organized in a mobile ad-hoc network, each user in the network forming a node in the network and requiring on-demand communication routing with other users in the network, each user including a transmitter and a receiver; each user transmitting a broadcast information-request message to its direct neighbors in the network and receiving replies with information of a one-hop topology from its direct neighbors and, based on the replies from its direct neighbors, constructing using a data processor included at the user a local coordinate system by finding three mutually connected users; each user transmitting information to another user in the network, each user as a source of a transmission of information to another user as a destination of the transmission of information using the data processor and a data source for embedding encoded source position in transmitted information; each user receiving a transmission of information as a destination of a transmission of information from a source of the transmission of information accessing the data source by the data processor for decoding the source position embedded in the received transmission information; wherein local coordinate systems are created at each node in the network and the data processor of each user accessing its respective database to perform local coordinate system position transformation between consecutive nodes along a route of the transmission of information thereby integrating localization procedure with routing to support time-critical location based service applications in the mobile ad hoc network.