Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (8): 1930-1934.

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H control approach to congestion control for multi-link network

MA Ke-yun, YU Li, ZHANG Wen-an   

  1. Coll. of Information Engineering, Zhejiang Univ. of Technology, Hangzhou 310032, China
  • Received:2007-12-20 Revised:2008-05-08 Online:2009-08-20 Published:2010-01-03

Abstract: The congestion control problem is investigated based on a class of multi-link networks with active queue management(AQM) routers.A state-space model is used to describe the dynamic properties of the multi-link network flow,and the discrepancy between available link bandwidth and nominal link bandwidth is considered as a disturbance.Then,the network congestion problem is solved by using the H control approach.The size of actual window and length of queue are adjusted to the reference values by the packet-dropout rate under the change of the available link bandwidth,and thus the congestion control purpose is achieved.Finally,two simulations show the effectiveness of the proposed method.

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