Interference Distribution of a CDMA Cognitive Radio AdHoc Network

  • Miguel Luís
  • Rodolfo Oliveira
  • Rui Dinis
  • Luis Bernardo
Part of the IFIP Advances in Information and Communication Technology book series (IFIPAICT, volume 372)

Abstract

It is well known that in ad hoc networks the interference at a given receiver is expressed by the sum of several random variables representing the distinct sources of interference, and no exact closed-form distribution is known for such a sum. This work characterizes the interference distribution of a Cognitive Radio ad hoc Network (CRAHN) based on Code Division Multiple Access (CDMA). The authors start to explore an analytical model for the multiple-access interference of a Primary User (PU), being thereafter extended to embrace the co-existence of a Secondary User (SU) network. Several scenarios are simulated and the results are compared to the proposed analytical model.

Keywords

cognitive radio adhoc networks interference code-division multiple-access 

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Copyright information

© IFIP International Federation for Information Processing 2012

Authors and Affiliations

  • Miguel Luís
    • 1
    • 2
  • Rodolfo Oliveira
    • 1
  • Rui Dinis
    • 1
    • 2
  • Luis Bernardo
    • 1
  1. 1.CTS, Uninova, Dep. o de Eng. a Electrotécnica, Faculdade de Ciências e Tecnologia, FCTUniversidade Nova de LisboaCaparicaPortugal
  2. 2.IT, Instituto de TelecomunicaçõesPortugal

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