5th International ICST Conference on Communications and Networking in China

Research Article

Dynamic load balancing in 3GPP LTE multi-cell networks with heterogenous services

Download495 downloads
Cite
BibTeX Plain Text
  • @INPROCEEDINGS{10.4108/chinacom.2010.141,
    author={Hao Wang and Lianghui Ding and Ping Wu and Zhiwen Pan and Nan Liu and Xiaohu You},
    title={Dynamic load balancing in 3GPP LTE multi-cell networks with heterogenous services},
    proceedings={5th International ICST Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2011},
    month={1},
    keywords={3GPP LTE dynamic load balancing Quality of Service (QoS)},
    doi={10.4108/chinacom.2010.141}
}
  • Hao Wang
    Lianghui Ding
    Ping Wu
    Zhiwen Pan
    Nan Liu
    Xiaohu You
    Year: 2011
    Dynamic load balancing in 3GPP LTE multi-cell networks with heterogenous services
    CHINACOM
    ICST
    DOI: 10.4108/chinacom.2010.141
Hao Wang1,2,*, Lianghui Ding2,*, Ping Wu2,*, Zhiwen Pan1,*, Nan Liu1,*, Xiaohu You1,*
  • 1: National Mobile Communication Research Laboratory, Southeast University, Nanjing, China
  • 2: Signals and Systems, Dept. of Engineering Sciences, Uppsala University, Uppsala, Sweden
*Contact email: hao.wang@angstrom.uu.se, lhding@angstrom.uu.se, ping.wu@angstrom.uu.se, pzw@seu.edu.cn, nanliu@seu.edu.cn, xhyu@seu.edu.cn

Abstract

Load balancing among multi-cells in 3GPP Long Term Evolution (LTE) networks with heterogeneous services is investigated. It is formulated as a multi-objective optimization problem, the objectives of which are load balancing index of services with QoS requirements and network utility of other services. The constraints are physical resource limits and QoS demands. Then the property and complexity of the problem are analyzed, and sequential optimization method is employed to solve it. After that, a practical algorithm for load balancing is developed which includes QoS-guaranteed hybrid scheduling, handover of users with and without QoS requirements, and call admission control. Simulation is made extensively and the results show that the proposed load balancing algorithm can significantly enhance the performance of LTE networks with heterogeneous services, decreasing call block probability of users with QoS requirements, and increasing throughput of boundary users with only a bit degradation of total throughput.

Keywords
3GPP LTE dynamic load balancing Quality of Service (QoS)
Published
2011-01-10
Publisher
IEEE
http://dx.doi.org/10.4108/chinacom.2010.141
Copyright © 2010–2024 ICST