中国邮电高校学报(英文版) ›› 2017, Vol. 24 ›› Issue (2): 57-65.doi: 10.1016/S1005-8885(17)60199-7

• Wireless • 上一篇    下一篇

Modular handover algorithm for 5G HetNets with comprehensive load index

李丹阳,张治中,高依依   

  1. 重庆邮电大学
  • 收稿日期:2016-09-07 修回日期:2017-04-01 出版日期:2017-04-30 发布日期:2017-04-30
  • 通讯作者: 李丹阳 E-mail:584111163@qq.com
  • 基金资助:
    重庆高校创新团队;863计划

Modular handover algorithm for 5G HetNets with comprehensive load index

  • Received:2016-09-07 Revised:2017-04-01 Online:2017-04-30 Published:2017-04-30
  • Contact: Dan-Yang LI E-mail:584111163@qq.com
  • Supported by:
    the Program for Innovation Team Building at Institutions of High Education in Chongqing (KJTD201312), the Hi-Tech Research and Development Program of China (2015AA01A705, 2014AA01A706).

摘要: Most existing handover decision system (HDS) designs are monolithic, resulting in high computational cost and unbalance of overall network. A novel modular handover algorithm with a comprehensive load index for the 5th generation (5G) heterogeneous networks (HetNets) is proposed. In this paper, the handover parameters, serving as the basis for handover, are classified into network’s quality of service (QoS) module, user preference (UP) module and degree of satisfaction (DS) module according to the new modular HDS design. To optimize switching process, the comprehensive network load index is deduced by using triangle module fusion operator. With respect to the existing handover algorithm, the simulation results indicate that the proposed algorithm can reduce the handover frequency and maintain user satisfaction at a higher level. Meanwhile, due to its block calculation, it can bring about 1.4 s execution time improvement.

关键词: 5G HetNets, handover, modular HDS, comprehensive load index

Abstract: Most existing handover decision system (HDS) designs are monolithic, resulting in high computational cost and unbalance of overall network. A novel modular handover algorithm with a comprehensive load index for the 5th generation (5G) heterogeneous networks (HetNets) is proposed. In this paper, the handover parameters, serving as the basis for handover, are classified into network’s quality of service (QoS) module, user preference (UP) module and degree of satisfaction (DS) module according to the new modular HDS design. To optimize switching process, the comprehensive network load index is deduced by using triangle module fusion operator. With respect to the existing handover algorithm, the simulation results indicate that the proposed algorithm can reduce the handover frequency and maintain user satisfaction at a higher level. Meanwhile, due to its block calculation, it can bring about 1.4 s execution time improvement.

Key words: 5G HetNets, handover, modular HDS, comprehensive load index

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