Capacity of cognitive radio multiple-access channels in dynamic fading environments

Sabit Ekin, Tarun Agarwal, Khalid Qaraqe, Erchin Serpedin

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

Abstract

In this paper, the capacity of cognitive radio multiple-access channels (CR-MAC) with spectrum sharing property over dynamic fading environments is studied. In the system model, multiple secondary users (SUs) transmit to the secondary base station (SBS) under the transmit power (TP) and interference temperature (IT) at the primary base station (PBS) constraints. A theoretical fading model called hyper fading model, proposed in [1], that is suitable to the dynamic nature of cognitive radio channel is considered. The optimal power allocation method is utilized to maximize the capacity of CR-MAC for dynamic fading channel with TP and IT constraints and full channel side information (CSI). Numerical results are presented to verify the theoretical analysis and investigate the effects of average TP and IT on the capacity.

Original languageEnglish
Title of host publicationISSCS 2011 - International Symposium on Signals, Circuits and Systems, Proceedings
Pages145-148
Number of pages4
DOIs
Publication statusPublished - 2011
EventInternational Symposium on Signals, Circuits and Systems, ISSCS 2011 - Iasi
Duration: 30 Jun 20111 Jul 2011

Other

OtherInternational Symposium on Signals, Circuits and Systems, ISSCS 2011
CityIasi
Period30/6/111/7/11

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Control and Systems Engineering

Cite this

Ekin, S., Agarwal, T., Qaraqe, K., & Serpedin, E. (2011). Capacity of cognitive radio multiple-access channels in dynamic fading environments. In ISSCS 2011 - International Symposium on Signals, Circuits and Systems, Proceedings (pp. 145-148). [5978680] https://doi.org/10.1109/ISSCS.2011.5978680