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Mobility Protocols and Handover Optimization: Design, Evaluation and Application by Ashutosh Dutta, Henning Schulzrinne

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A

RDF Schema for Application Layer Discovery

In this appendix, we illustrate a sample RDF schema (Figure A.1) that can be used for information discovery with IEEE 802.21. For the sake of brevity, we provide only a subset of the schema. We show examples that include a combination of basic and extended sets of classes and their associated properties. For example, a network class will have properties of type L2 and L3, and an L2 class will have properties such as network-id, operator, location, and neighbor information.

<?xml version=''1.0''?> <!DOCTYPE rdf:RDF [ <!ENTITY rdf 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'> <!ENTITY rdfs 'http://www.w3.org/2000/01/rdf-schema#'> <!ENTITY mihbase 'URL_TO_BE_ASSIGNED'> ]> <rdf:RDF xmlns:rdf=''&rdf;'' xmlns:rdfs=''&rdfs;'' xmlns:mihbase=''&mihbase;'' xml:base=''&mihbase;''> <rdfs:Class rdf:ID=''Network''> <rdfs:subClassOf rdf:resource=''&rdfs;Resource''/> <rdfs:comment> The network class has two properties, namely l2 for layer 2 information and l3 for higher-layer information. Any property can be added to this class in an extended schema. <rdfs:comment/> </rdfs:Class> <rdf:Property rdf:ID=''l2''> <rdfs:domain rdf:resource=''#Network''/> <rdfs:range rdf:resource=''#L2''/> <rdfs:comment> This property is of type L2 class. <rdfs:comment/> </rdf:Property> <rdf:Property rdf:ID=''l3''> <rdfs:domain rdf:resource=''#Network''/> <rdfs:range rdf:resource=''#L3''/> <rdfs:comment> This property is of type L3 class. <rdfs:comment/> </rdf:Property> ...

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