Multi-Criteria Decision Systems
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In the design and use of routing methods, the signalling is only one part. Another part is the decision-making, i.e. the algorithm(s) used to decide between route alternatives. Most routing algorithms in communication networks only use a single criterion to decide about the route. AODV as one of the examples given in the introduction of Chapter 2 only optimises according to the fastest found route, as only the route on which the destination received the first route request is replied to the source. The fastest found route is the selection criterion in most of the cases. When the routing is context aware, however, multiple context criteria have to be used. This is the case for the routing approach presented in this work. As there are multiple criteria that can influence the decision, these criteria have to be combined into a multi-criteria decision algorithm.
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