Interference cancellation through interference alignment for downlink of cognitive cellular networks

Interference cancellation through interference alignment (IA) at the downlink of cognitive cellular networks is proposed. IA helps the spatial resources to be shared among primary and secondary cells, and thus it can provide higher degrees of freedom (DoFs) through interference cancellation. The ach...

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Bibliographic Details
Published inElectronics letters Vol. 51; no. 1; pp. 54 - 56
Main Authors Moussa, M, Foukalas, F, Khattab, T
Format Journal Article
LanguageEnglish
Published The Institution of Engineering and Technology 08.01.2015
Subjects
Alignment
Allocations
Cancellation
cellular radio
cognitive cellular networks
cognitive radio
Degrees of freedom
DoF
Information and communications
Interference
interference alignment
interference cancellation
interference suppression
Mathematical analysis
Optimization
water‐filling optimal power allocation
interference suppression
cognitive radio
interference alignment
cognitive cellular networks
degrees of freedom
IA
DoF
water-filling optimal power allocation
interference cancellation
cellular radio
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Summary:Interference cancellation through interference alignment (IA) at the downlink of cognitive cellular networks is proposed. IA helps the spatial resources to be shared among primary and secondary cells, and thus it can provide higher degrees of freedom (DoFs) through interference cancellation. The achievable DoFs are derived and depicted. The achievable sum rates applying water-filling optimal power allocation are analysed and calculated.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2014.2656