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�������պ����ѧѧ�� 2004, Vol. 30 Issue (11) :1116-1120    DOI:
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Flow control algorithm based on ECN probabilistic marking
Yang Zhen, Ding Wei*
School of Telecommunication and Network Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China

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Abstract�� A flow model upon users' utility function was proposed, with which the optimization-based congestion control could transform optimization-based flow c ontrol. A dual gradient projection algorithm was given to optimize network flow control. In this algorithm, sources selected transmission rates that maximize th eir own benefits, utility minus bandwidth cost, and network links adjusted conge stion prices to coordinate the sources' decision. To implement this network flow control algorithm, the routers set ECN(explicit congestion notification) bit p robabilistically to transmit congestion price information. And the necessary lin k position information of packet path was estimated by exploiting the existing s emantics of the TTL(time-to-live) field in IP header. The computer simulation verified the convergence and validity of this flow control algorithm.
Keywords�� flow control   explicit congestion notification marking   shadow price   congestion     
Received 2004-06-25;
Fund:

������Ȼ��ѧ����������Ŀ(69802003); ��������ʿѧ�� ��ר����л���������Ŀ(200220013011)

About author: �� ��(1976-),��,ɽ����ͬ��,��ʿ��, yz@bupt-bcnl. com.
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����, ���.һ�ֻ���ECN���ʱ�ǵ����������㷨[J]  �������պ����ѧѧ��, 2004,V30(11): 1116-1120
Yang Zhen, Ding Wei.Flow control algorithm based on ECN probabilistic marking[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2004,V30(11): 1116-1120
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