LTE virtualization: From theoretical gain to practical solution

Liang Zhao, Ming Li, Yasir Zaki, Andreas Timm-Giel, Carmelita Görg

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Virtualization of wireless networks has received more and more research attention. As a means to reduce the investment of mobile network operators and to improve the network performance, LTE (Long Term Evolution) virtualization is one important study cases in the scope of wireless virtualization. To investigate the advantages of virtualization on the LTE air interface, this work starts with an analytical model of FTP (File Transfer Protocol) transmissions in virtualized LTE systems, and an obvious multiplexing gain can be observed. Evaluations with the considerations of realistic simulation models and mixed services of FTP and VoIP (Voice over IP) traffic also validate the analytical analysis. Further, an extended multi-party spectrum sharing model is proposed. As one of the key issues, spectrum budget estimation is further analyzed based on the characteristics of real time services, i.e. VoIP, and it is validated by further simulations that the proposed mechanism can give a very close estimation on the instant spectrum requirements in one cell. Some of the other investigation possibilities in practice are also discussed at the end.

Original languageEnglish (US)
Title of host publicationProceedings of the 2011 23rd International Teletraffic Congress, ITC 2011
Pages71-78
Number of pages8
StatePublished - 2011
Event2011 23rd International Teletraffic Congress, ITC 2011 - San Francisco, CA, United States
Duration: Sep 6 2011Sep 9 2011

Publication series

NameProceedings of the 2011 23rd International Teletraffic Congress, ITC 2011

Other

Other2011 23rd International Teletraffic Congress, ITC 2011
CountryUnited States
CitySan Francisco, CA
Period9/6/119/9/11

Keywords

  • LTE virtualization
  • load estimation
  • spectrum sharing

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems

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