Achievable capacity of a spectrum sharing system over hyper fading channels

Sabit Ekin, Ferkan Yilmaz, Hasari Celebi, Khalid Qaraqe, Mohamed Slim Alouini, Erchin Serpedin

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

9 Citations (Scopus)

Abstract

Cognitive radio with spectrum sharing feature is a promising technique to address the spectrum under-utilization problem in dynamically changing environments. In this paper, achievable capacity gain of spectrum sharing systems over dynamic fading environments is studied. For the analysis, a theoretical fading model called hyper fading model that is suitable to the dynamic nature of cognitive radio channel is proposed. Closed-form expression of probability density function (PDF) and cumulative density function (CDF) of the signal-to-noise ratio (SNR) for secondary users in spectrum sharing systems are derived. In addition, the capacity gains achievable with spectrum sharing systems in high and low power regions are obtained. Numerical simulations are performed to study the effects of different fading figures, average powers, interference temperature, and number of secondary users on the achievable capacity.

Original languageEnglish
Title of host publicationGLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference
DOIs
Publication statusPublished - 2009
Event2009 IEEE Global Telecommunications Conference, GLOBECOM 2009 - Honolulu, HI, United States
Duration: 30 Nov 20094 Dec 2009

Other

Other2009 IEEE Global Telecommunications Conference, GLOBECOM 2009
CountryUnited States
CityHonolulu, HI
Period30/11/094/12/09

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Ekin, S., Yilmaz, F., Celebi, H., Qaraqe, K., Alouini, M. S., & Serpedin, E. (2009). Achievable capacity of a spectrum sharing system over hyper fading channels. In GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference [5425715] https://doi.org/10.1109/GLOCOM.2009.5425715