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Which among the following is the first step in multipath routing?(a) Selection of a spectrum band for transmission(b) Identification of multi-paths(c) Evaluation of route metrics(d) Selection of route metricsThis question was addressed to me in unit test.This key question is from Next Generation Wireless Network in section Next Generation Wireless Network of Cognitive Radio

Answer»

Right option is (a) Selection of a spectrum band for transmission

Easy explanation: In multipath routing, the multiple paths are discovered first. The routes are evaluated on route metrics such as delay and link stability, and then the node selects a route for transmission. One APPROACH is to employ dynamic source routing for route discovery. Multipath routing suits the dynamic NATURE of cognitive NETWORKS and EXHIBITS increased EFFICIENCY.



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