Adaptive detector for multiple-data-path systems

Details Adaptive detector for multiple-data-path systems Adaptive detector for multiple-data-path systems

2004-12-31

2008-10-07

Ha, Dac V (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S267000, C375S350000, C370S203000, C370S319000, C370S464000, C455S059000, C455S067110, C455S226100

Reexamination Certificate

active

07433432

ABSTRACT:
An adaptive, reduced-complexity soft-output maximum-likelihood detector that is operable to process data by adaptively selecting a processing scheme based on a determination of signal quality. The signal quality is derived as a function of the noise, the modulation format, the channel (the communication environment), the transmit signal power and the receive signal power. If the signal quality is low, the signal is processed using a maximum likelihood detector. If, however, the signal quality is high, a simpler sub-optimal detector is used. By estimating the signal quality and choosing an appropriate detection method, the present invention ensures accurate detection of incoming data signals in a MIMO communication system while maintaining the highest possible processing speed.

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Huaiyu Dai et al., “Multiuser Detection for Interference-Limited MIMO Systems,” VTC Spring 2002, IEEE 55thVehicular Technology Conference Proceedings, NY NY May 6-9, 2002.

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