The convex geometry of subchannel attenuation coefficients in linearly precoded OFDM systems

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The convex geometry of subchannel attenuation coefficients in linearly precoded OFDM Systems

Channels with spectral nulls are sometimes dubbed bad channels because they can cause poor performance in communication systems. This correspondence investigates the validity of this intuition by studying the geometry of an orthogonal frequency-division multiplex (OFDM) system. It is shown that the subchannel attenuation coefficients form a natural coordinate system for describing finite-impuls...

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ژورنال

عنوان ژورنال: IEEE Transactions on Information Theory

سال: 2002

ISSN: 0018-9448

DOI: 10.1109/18.995651