J4 ›› 2014, Vol. 41 ›› Issue (2): 1-8.doi: 10.3969/j.issn.1001-2400.2014.02.001

• Original Articles •     Next Articles

Traffic allocation algorithm of multi-radio access transmission based on minimizing delay over heterogeneous networks

ZHENG Jie1;LI Jiandong1;LIU Qin1;SHI Hua1;YANG Xiaoniu2   

  1. (1. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China;
    2. No.36 Research Institute of China Electronics Technology Group Corporation, Jiaxing  314001, China)
  • Received:2012-12-10 Online:2014-04-20 Published:2014-05-30
  • Contact: ZHENG Jie E-mail:jzhengxidian@163.com

Abstract:

To minimize the traffic arrival delay, a joint network selection and traffic allocation algorithm is proposed for parallel multi-radio access transmission. The algorithm takes into account the available bit rates and network delays of different networks. Based on the Beckmann transformation method, we obtain the threshold for the optimal traffic allocation. According to such a threshold, a minimal subset of admitted networks can be chosen and traffic allocation among these networks can be done to achieve the minimum delay. Simulation results show that the proposed algorithm could improve the arrival delay effectively and guarantee the maximum throughput under the heavy load condition.

Key words: heterogeneous networks, parallel multi-radio access, minimizing delay, traffic allocation, threshold