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For the optimal routing under multiple attribute, this paper presents the mechanism based on fuzzy integral in multi-attribute optimal routing. This mechanism use 2-additive fuzzy measure in place of classical additive measure, and use Choquet fuzzy integral which based on fuzzy measure as integrated operator, transfer multi-attribute parameters into a comprehensive parameter, then use the improved...
In this paper, for the sake of better global coverage, we introduce a novel triple-layered satellite network architecture including Geostationary Earth Orbit (GEO), Highly Elliptical Orbit (HEO), and Low Earth Orbit (LEO) satellite layers, which provides the near-global coverage with 24 hour uninterrupted over the areas varying from 75° S to 90° N. On the basis of this architecture, we propose a QoS-aware...
Spectrum assignment is an important research problem in cognitive radio networks. Different from the conventional spectrum assignment algorithms which are mainly designed for ad hoc networks, in this paper, a new spectrum assignment algorithm for infrastructure based cognitive radio networks is proposed. This algorithm aims at maximizing the average bandwidth per flow, and avoiding the spectrum waste...
We present and verify the epsiv-optimal approximation scheme for on-demand multipath routing in ad hoc networks (epsiv-AOMDV), an extension to the well-studied ad hoc on distance vector (AODV). By introducing the hop count limiting parameter -epsiv, we modify the route update conditions and route discovery processes. The proposed protocol selects and maintains the multiple paths that are shorter than...
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