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Acta Armamentarii ›› 2013, Vol. 34 ›› Issue (12): 1562-1568.doi: 10.3969/j.issn.1000-1093.2013.12.011

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Research on High Quality of Service Two-class Multiplexing Algorithm

BI Ming-xue1,2,PAN Cheng-sheng3   

  1. (1. School of Equipment Engineering, Shenyang Ligong University, Shenyang 110159, Liaoning, China;2. School of Automation, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China;3. Dalian University,Dalian 116622,Liaoning,China)
  • Received:2012-10-22 Revised:2012-10-22 Online:2014-03-04
  • Contact: BI Ming-xue E-mail:bmx418@163.com

Abstract: The two-class multiplexing algorithm of advanced orbiting system(AOS)is researched for the characteristic and performance requirement of the space data system. Based on packet length and arrival rate, the packet channel multiplexing algorithm selects the upper limit of packet channel multiplexing time for optimization multiplexing efficiency adaptively. Based on real time character, frame length and data arrival rate, the virtual channel (VC) multiplexing algorithm distributes the scheduling time-slot lengths and numbers adaptively. Then the multiplexing delay, multiplexing efficiency, loss probability and throughput are simulated separately. The simulation results show that the new two-class multiplexing algorithm can restrict the time delay, reduce the probabilities of packet loss and frame loss, enhance the multiplexing efficiency and the throughput to satisfy the quality of service(QoS)requirement such as low time delay, the high throughput and so on for the future space data system.

Key words: other disciplines of aerospace science and technology, space data system, two-class multiplexing, Poisson process, time delay, throughput

CLC Number: