| Citation: | WU Shaojun, ZHAO Guangheng, WANG Liqian, et al. Dynamic bandwidth allocation mechanism with parallel and switching for FC-AE-1553 network[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(12): 2579-2586. doi: 10.13700/j.bh.1001-5965.2015.0856(in Chinese) |
In order to meet the requirement of space payload system and data transmission, the data business type was divided into periodic business, burst business and strong timeliness business. After the characteristics of the three kinds of business are analyzed, a scheme of dynamic bandwidth allocation (DBA) mechanism with parallel and switching for FC-AE-1553 network was proposed. The burst business used the periodical and concurrent dynamic bandwidth allocations, the periodic business used the static bandwidth allocation, and the strong timeliness business used the preemptive bandwidth allocation. An FC-AE-1553 network simulation platform was set up in OPNET Modeler. The performance of the system was analyzed based on both theoretical analysis and simulation approaches. The results show that compared with traditional DBA solutions of FC-AE-1553 network, the proposed mechanism increases the mean network throughput by over 10 times; FC-AE-1553 network throughput increases from 2.8 Gb/s to 46 Gb/s at 32 nodes; the mean time-delay of burst business decreases by one order of magnitude at 32 nodes.
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