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In this paper, we present an algorithm to approximate the chromatic number of a graph. The proposed approach initially removes even cycles and acyclic subgraphs, this process is called debugging, later to colour the remaining graph, we present a strategy to obtain maximal independent sets. We experimentally show that our proposal improves the results compare to JGraphT and Sage which contain a module...
Small radio cells have been acknowledged as the only technically viable way to provide the individual 100 Mb/s–1 Gb/s access rates promised by the future 5G1 cellular networks. This small-cell approach faces a number of technological challenges when it comes to the design of an appropriate backhaul network [7]. However, not less importantly, it also poses a financial challenge for operators, given...
This paper presents a power splitting algorithm in order to optimize the efficiency of a multi fuel cell system. Versus a single fuel cell, such a system is modular, allows a better efficiency curve and reduces the risk of general failure. The results of the algorithm are easy to implement into a real time controller. This work presents simulation results based on an experimental power vs efficiency...
Sensory systems for localization and mapping based on ranging allows to obtain not only the position of a mobile object but also the position of the beacons or landmarks. Using only ranging, the beacon positions are often calculated without needing to compute all the spatial relations among them. In this work, a preliminary study about the use of relative positioning algorithm to obtain a map of active...
This work addresses the problem of inter-cell interference (ICI) management in the context of single frequency broadband OFDMA-based networks. Five proposals, based on a combination of ICI coordination/avoidance techniques along with a set of heuristic adaptive power and subcarrier allocation algorithms, have been considered in order to achieve better interference performance and resource utilization...
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