Loss Performance Modeling for Hierarchical Heterogeneous Wireless Networks With Speed-Sensitive Call Admission Control

Qian Huang, Yue-Cai Huang, King-Tim Ko, Villy Bæk Iversen

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Abstract

A hierarchical overlay structure is an alternative solution that integrates existing and future heterogeneous wireless networks to provide subscribers with better mobile broadband services. Traffic loss performance in such integrated heterogeneous networks is necessary for an operator's network dimensioning and planning. This paper investigates the computationally efficient loss performance modeling for multiservice in hierarchical heterogeneous wireless networks. A speed-sensitive call admission control (CAC) scheme is considered in our model to assign overflowed calls to appropriate tiers. This approach avoids unnecessary and frequent handoff between cells and reduces signaling overheads. An approximation model with guaranteed accuracy and low computational complexity is presented for the loss performance of multiservice traffic. The accuracy of numerical results is validated by comparing the results from the approximation with simulations.
Original languageEnglish
JournalI E E E Transactions on Vehicular Technology
Volume60
Issue number5
Pages (from-to)2209-2223
ISSN0018-9545
DOIs
Publication statusPublished - 2011

Keywords

  • Overflow
  • Performance evaluation
  • Multiservice
  • Quality of service (QoS)
  • Mobile traffic management
  • Heterogeneous wireless networks
  • Hierarchical networks

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