Scalable space-frequency coding for MIMO systems
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United States of America Patent
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Nov 24, 2009
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app pub date -
Jan 28, 2004
filing date -
Aug 11, 2003
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Abstract
A transceiver in an N×N MIMO (Multiple-In-Multiple-Out) system includes a mode selection module to select a spatial multiplexing rate and a coding module to space frequency code OFDM (Orthogonal Frequency Division Multiplexing) symbols in response to the selected spatial multiplexing rate. The coding module maps data symbols to the transmit antennas for all data tones in the OFDM symbol. The tones may be mapped using different mapping permutations, which may be applied to the tones in a cyclical manner.
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