Achievable rates and energy efficiency in cognitive radio channels with sensing errors

M. Cenk Gursoy, Gozde Ozcan, Sami Akin

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

Abstract

In this paper, achievable rates and energy efficiency in cognitive radio channels are analyzed in the presence of sensing errors. The cognitive secondary users are initially assumed to perform channel sensing and then enter into data transmission phase. Under sensing uncertainty and Gaussian primary user interference assumptions, additive disturbance experienced at the secondary receiver is seen to have a Gaussian mixture density. Achievable rates under such assumptions are examined and a closed-form rate expression is determined. An outage capacity formulation is also derived. Finally, energy efficiency is analyzed by investigating the minimum energy per bit and wideband slope expressions in the low-SNR regime. Through this analysis, tradeoffs and interactions between sensing parameters, sensing performance, throughput, transmission energy, and energy efficiency are identified.

Original languageEnglish (US)
Title of host publication2012 1st IEEE International Conference on Communications in China, ICCC 2012
Pages24-29
Number of pages6
DOIs
StatePublished - Dec 28 2012
Event2012 1st IEEE International Conference on Communications in China, ICCC 2012 - Beijing, China
Duration: Aug 15 2012Aug 17 2012

Publication series

Name2012 1st IEEE International Conference on Communications in China, ICCC 2012

Other

Other2012 1st IEEE International Conference on Communications in China, ICCC 2012
CountryChina
CityBeijing
Period8/15/128/17/12

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

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  • Cite this

    Gursoy, M. C., Ozcan, G., & Akin, S. (2012). Achievable rates and energy efficiency in cognitive radio channels with sensing errors. In 2012 1st IEEE International Conference on Communications in China, ICCC 2012 (pp. 24-29). [6356857] (2012 1st IEEE International Conference on Communications in China, ICCC 2012). https://doi.org/10.1109/ICCChina.2012.6356857