Radio Resource Adaptive Adjustment in Future Wireless Systems Based on Application Demands
Keywords:Resource management, adaptive techniques, feedback loop, network virtualization
In wireless communication systems the resource Â anagement needs to integrate adaptiveÂ techniques to the varying network conditions, due to the eventual dramaticÂ changes that may occur in the link quality. Therefore, it may be desirable to supportÂ adaptable resource management techniques that are able to find their decisions inÂ the network configuration information or in the source application description. Accordingly,Â the paper identifies, explores and proposes adaptive techniques for resourceÂ management so as to enhance the transmission quality on wireless systems eitherÂ through a feedback channel or by making use of the network virtualization concept.Â Setting up dependencies between the application requests and the radio channel conditions,Â a feedback loop adaptively configures modulation and coding schemes, calibratesÂ multi-antenna system, controls power per beam allocation or invokes a linearÂ precoding. Finally, when the application requests exceed the network capacity, by theÂ network virtualization process the adaptive potential of the application parametersÂ can be employed, either through source fragmentation or source code adaptation.
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