Adaptive Modulation for multiantenna transmissions with channel mean feedback.

Adaptive modulation has the potential to increase the system throughput significantly by matching transmitter parameters to time-varying channel conditions. However, adaptive modulation schemes that rely on perfect channel state information (CSI) are sensitive to CSI imperfections induced by estimat...

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Pubblicato in:	IEEE Transactions on wireless communications 3, 5 (2004).
Autore principale:	Shengli Zhou
Natura:	Articolo
Lingua:	English
Soggetti:	Gaussian random variable. Adaptive trellis-coded multiantenna modulation. Bit error rate. Channel mean feedback. Channel state information. Estimation errors. Feedback delays. Hardware complexity. Matching transmitter parameters. Multiantenna transmissions. Power allocation. Signal constellation. Spatial fading channel. Time-varying channel condition. Transmitter. Two-dimensional beamformer.