Proposed Optimization Technique for Maximization of Throughput under Using Different Multicarrier Systems in Cognitive Radio Networks
作者： Ahmed A Rosas , Mona Shokair , Sami A El-Dolil
DOI:
关键词: Computer network 、 Subcarrier 、 Electronic engineering 、 Underlay 、 Transmitter power output 、 Communications system 、 Throughput (business) 、 Cognitive radio 、 Cyclic prefix 、 Computer science 、 Orthogonal frequency-division multiplexing
摘要: Beside the hard ware implementation problems in Cognitive Radio Networks (CRNs), some communication criteria’s are considering to generate CRN with improvement, reliability and motivation system. One of these is how maximize total throughput spectrum sharing CRNs improve Quality Services (QOS) Secondary Users (SUs), adapt its parameters communicate concurrent primary system while assuring QOS users (PUs). In this paper, proposed optimization technique studies power allocation strategies underlay CRN. This optimizing based on Genetic Algorithm (GA) under consideration maximum transmit interference constraints. Furthermore, will be applied two different multicarrier modulation systems which Orthogonal Frequency Division Multiplexing (OFDM) Generalized (GFDM). Moreover, OFDM problem solved such as cyclic prefix subcarrier overlapping CRNs. Finally, performance for maximization investigated by using number PUs, SUs, subcarriers M, noise levels fully utilized constraints ensuring PUs.
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