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《Acta Aeronautica Et Astronautica Sinica》 2015-06
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Real-time path optimization algorithm of AFDX virtual link

DAI Zhen;HE Feng;ZHANG Yujing;XIONG Huagang;School of Electronics and Information Engineering,Beihang University;  
Avionics full duplex switched ethernet(AFDX)uses virtual link(VL)for message communications.In order to improve the real-time transmission performance of AFDX networks,with the target of VL path configuration optimization,a virtual link path optimization algorithm based on genetic algorithm(POGA)is proposed.In POGA,the network's real-time transmission performance is used as optimization objectives,and the network load balancing has also been considered.With VL path used as chromosome,POGA works through genetic operation and tries to find out the optimal VL path solution which makes the AFDX's real-time network performance the best.POGA is implemented by simulation.Under a configuration of 1000 VLs of a typical AFDX network,POGA is compared with the load balancing algorithm and the shortest path algorithm,and results show that 76.4% and 77.4% of VLs' real-time transmission latency has been reduced,and the real-time transmission performance of the AFDX network is enhanced by 13.2% and 12.9%respectively.
【Fund】: 国家自然科学基金(61301086);; 航空科学基金(20131951027)~~
【CateGory Index】: V243
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