1st International ICST Conference on Communications and Networking in China

Research Article

An Novel User-Classified Method for Modeling and Analysis of Hierarchical Cellular Networks

  • @INPROCEEDINGS{10.1109/CHINACOM.2006.344645,
        author={LIU Li  and JING  Tao},
        title={An Novel User-Classified Method for Modeling and Analysis of Hierarchical Cellular Networks},
        proceedings={1st International ICST Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2007},
        month={4},
        keywords={},
        doi={10.1109/CHINACOM.2006.344645}
    }
    
  • LIU Li
    JING Tao
    Year: 2007
    An Novel User-Classified Method for Modeling and Analysis of Hierarchical Cellular Networks
    CHINACOM
    IEEE
    DOI: 10.1109/CHINACOM.2006.344645
LIU Li 1,2, JING Tao1,2
  • 1: Institute of Electronic Information Engineering, Beijing Jiaotong University,
  • 2: Beijing, China

Abstract

As continuing growth in traffic volume from users with varying degrees of mobility in wireless networks, a hierarchical cellular structures (HCS) has been suggested. In this paper, we study the performance of a two-tier microcell/macrocell cellular system with bidirectional call-overflow scheme, where calls are allowed to overflow between the macrocells and microcells, and cell selection in hierarchical architecture based on the velocity of the mobile making the calls. Different from the general layer-classified (macrocell and microcell) analysis, we develop a novel user-classified (fast and slow) modeling method for evaluating the performance of such systems. The user-classified models consist of a fast user model and a slow user model both of which are one-dimension Poisson process transition diagrams instead of complicated overflow traffic model. Theoretical analysis and numerical evaluation show that our analytical model is reliable. Furthermore, strategies of applying handoff queue using our models are examined.