J4 ›› 2012, Vol. 39 ›› Issue (3): 166-171+184.doi: 10.3969/j.issn.1001-2400.2012.03.027

• Original Articles • Previous Articles     Next Articles

Modeling of the throughput of CMT in heterogeneous networks

ZHENG Yanwei1,2;NI Hong2;LIU Lei2   

  1. (1. Graduate School of Chinese Academy of Sci., Beijing  100049, China;
    2. National Network New Media Eng. Research Center, Inst. of Acoustics Chinese Academy of Sci., Beijing  100190, China)
  • Received:2011-03-08 Online:2012-06-20 Published:2012-07-03
  • Contact: ZHENG Yanwei E-mail:zhengyw@dsp.ac.cn

Abstract:

Based on analyzing the characteristics of concurrent multipath transfer (CMT), this paper proposes a throughput modeling method for CMT in heterogeneous networks. In order to estimate the throughput of CMT, it uses the state transition probability matrix to analyze the growth mechanisms of the congestion window in the slow-start and congestion avoidance stage of each path. It also puts forward an optimization algorithm, which reduces the complexity of the model by merging the states with the same congestion window size and adding the corresponding state transition probabilities. Experimental results show that the proposed method can accurately estimate the throughput of CMT even if the paths have different features, and that it can work well under the heterogeneous network environment.

Key words: heterogeneous network, concurrent multipath transfer, throughput, congestion window

CLC Number: 

  • TP393