Enhanced Link-Status Detection for High Speed Link Aggregation in Cognitive Radio Networks
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
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During the last years, research paid a lot of attentionto develop ad hoc routing algorithms. Several proposalsrecommend the usage of additional external metrics.These metrics improve the route selection decision inorder to maximize route lifetimes and to minimize thenumber of required route reestablishments. This workuses an existing routing algorithm and extend it with additionalinformation. The usage of positioning informationto forecast node positions is widely discussed in literature,as well as the utilization of signal strength measurementsof incoming packet to predetermine link breaks. This paperfocus on the computational effort, necessary to provisionthe routing algorithm with these metrics. Against theexpectation, our experiments reveal distinct declines ineffectiveness for the positioning enhanced routing algorithm.Whereas the same experiments show that a signalstrength metric improves the route selection decision,because it provides an additional metric without additionalcosts.