Adaptive detector for multiple-data-path systems
AssigneeBroadcom Corporation
InventorMin Chuin Hoo
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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.
Claims44
A communication system comprising:
- a plurality of transmit sources operable to transmit a plurality of symbols over a plurality of channels;
- an adaptive detector operable to:
- receive a plurality of symbols corresponding to said plurality of transmitted symbols;
- measure the signal quality of said plurality of symbols;
- implement a detection process based on said measurement of signal quality;
- and
- use said detection process to generate decisions for detecting said plurality of transmitted symbols.
A method of communicating data, comprising:
- transmitting a plurality of symbols over a plurality of channels;
- receiving said plurality of symbols corresponding to said plurality of transmitted symbols using an adaptive detector operable to:
- measure the signal quality of said plurality of symbols;
- implement a detection process based on said measurement of signal quality;
- and
- use said detection process to generate decisions for detecting said plurality of transmitted symbols.
Dependencies are inferred from the claim text.