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TRAINING SYMBOL FORMAT FOR MIMO OFDM SYSTEMS
TRAINING SYMBOL FORMAT FOR MIMO OFDM SYSTEMS
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机译:MIMO OFDM系统的训练符号格式
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摘要
OFDM training symbol formats are provided for use in a MIMO based wireless communication system that uses adaptive power loading. In one embodiment of the invention, during a first training time slot of a wireless data frame, the modulated tones of a first OFDM training symbol are divided among a plurality of spatial channels. Then during a second training time slot of the wireless data frame, the modulated tones of a second OFDM training symbol are divided among the plurality of spatial channels under the condition that none of the same tones that were previously assigned to a particular spatial channel are repeated within that spatial channel. Thus, an OFDM training symbol format is used that is capable of enhancing training symbol signal to noise ratio (SNR).
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