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SYSTEM FOR NULLING INTERFERENCE USING WEIGHTED PRECODING IN MIMO COGNITIVE RADIO SYSTEM
SYSTEM FOR NULLING INTERFERENCE USING WEIGHTED PRECODING IN MIMO COGNITIVE RADIO SYSTEM
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机译:MIMO认知无线电系统中使用加权预编码的干扰归零系统
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摘要
PURPOSE: A system for eliminating interference using a weighted precoder in an MIMO cognitive radio system is provided to apply an weighted value induced by similarity of vectors to a ZF based beam forming algorithm. CONSTITUTION: A weighted value allocating unit(506-2) calculates a weighted value to be applied to a precoder using similarity between spatial fading correlation matrixes of a CR(Cognitive Radio) system. A power assigning unit(506-3) assigns power of the precoder using a unique matrix to which the weighted value is applied. A beam determining unit(506-4) determines a beam direction of the precoder using the unique matrix.
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