robust power and subcarrier allocation for ofdm-based cognitive radio networks considering spectrum sensing uncertainties

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ID: 256042
2013
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Ranked #61 of 100 articles by views in molecular therapy : the journal of the american society of gene therapy

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Abstract
‎In this paper‎, ‎we address power and subcarrier allocation for cooperative cognitive radio (CR) networks in the presence of spectrum sensing errors‎. ‎First‎, ‎we derive the mutual interference of primary and secondary networks affecting each other by taking into account spectrum sensing errors‎. ‎Then‎, ‎taking into account the interference constraint imposed by the cognitive network to the primary user and the power budget constraint of cognitive network‎, ‎we maximize the achievable data rates of secondary users‎. ‎Besides‎, ‎in a multi secondary user scenario‎, ‎we propose a suboptimal but low complexity power and subcarrier allocation algorithm to solve the formulated optimization problem‎. ‎Our numerical results indicate that the proposed power loading scheme increases the cognitive achievable data rates compared to classical power loading algorithms that do not consider spectrum sensing errors‎.
Reference Key
fathi2013radioengineeringrobust Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;H. Fathi;S. M.-S. Sadough
Journal molecular therapy : the journal of the american society of gene therapy
Year 2013
DOI
DOI not found
URL
www.radioeng.cz/fulltexts/2013/13_03_0810_0817.pdf
Keywords
electronics nuclear engineering

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