Journal of Computer Applications ›› 2014, Vol. 34 ›› Issue (5): 1236-1238.DOI: 10.11772/j.issn.1001-9081.2014.05.1236

• Network and communications • Previous Articles     Next Articles

Speed adaptive vertical handoff algorithm based on application requirements

TAO Yang,JIANG Yanli,CHEN Leicheng   

  1. School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Received:2013-11-07 Revised:2013-12-26 Online:2014-05-01 Published:2014-05-30
  • Contact: JIANG Yanli



  1. 重庆邮电大学 通信与信息工程学院,重庆 400065
  • 通讯作者: 江彦鲤
  • 作者简介:陶洋(1964-),男,重庆人,教授,博士,主要研究方向:通信网络、多维网络;江彦鲤(1990-),女,四川达州人,硕士研究生,主要研究方向:无线通信;陈雷成(1988-),男,山东日照人,硕士研究生,主要研究方向:通信理论、信道模拟。


Next Generation Network (NGN) is an integrative network which uses different radio access technologies. In this converged network environment, vertical handoff between different wireless access technologies becomes an important research topic. However, most of vertical handoff algorithms do not think about the actual demands of network and the mobility of user, but taking network properties as the standards of judgment. In order to solve the problem above, a speed adaptive vertical handoff algorithm based on application requirements was proposed, which used the speed factor and network propertise matrix to compensate for the quality loss of wireless link caused by mobility, which adaptively adjusted the weights of network properties that the application needs and supported node to make effective decisions. This algorithm realized vertical handoff with adaptive speed which better served the application and . Simulation results show that the proposed algorithm can overcome the ping-pang effect effectively and it has higher packet throughput in comparison with the other vertical handoff algorithms.



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