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Feasibility Conditions of Interference Alignment via Two Orthogonal Subcarriers
classification
💻 cs.IT
math.IT
keywords
alignmentconditionsinterferencefeasibilityorthogonalsubcarriersachievedapproached
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Conditions are derived on line-of-sight channels to ensure the feasibility of interference alignment. The conditions involve choosing only the spacing between two subcarriers of an orthogonal frequency division multiplexing (OFDM) scheme. The maximal degrees-of-freedom are achieved and even an upper bound on the sum-rate of interference alignment is approached arbitrarily closely.
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