J4 ›› 2011, Vol. 38 ›› Issue (2): 18-22+81.doi: 10.3969/j.issn.1001-2400.2011.02.004

• Original Articles • Previous Articles     Next Articles

Study of the DTN routing algorithm based on the Markov decision

ZHANG Wenzhu1;SUN Fayong1;WANG Xuan2   

  1. (1. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China;
    2. Northwest China Grid Company Limited, Xi'an  710048, China)
  • Received:2010-09-13 Online:2011-04-20 Published:2011-05-26
  • Contact: ZHANG Wenzhu E-mail:wzzhang1@mail.xidian.edu.cn

Abstract:

Since the major application scenarios of the DTN (delay/disruption tolerant network) are extremely particular, routing protocols designed for the traditional networks are not suitable for it. In order to raise the transfer efficiency while reducing the network delay and network cost in the DTN, a routing algorithm based on the Markov Decision, named MRDDTN (Markov Route Decision in the DTN), is proposed. The MRDDTN is self-learning and can solve problems in the complex network environment characterized by very long delay paths and frequent network partitions. Through simulative analysis, the MRDDTN is found to be able to achieve a better performance than Epidemic and PROPHET routing algorithms under the same network conditions.

Key words: delay/disruption tolerant network, routing algorithm, Markov decision

CLC Number: 

  • TP393