Self-adapting transmitting method using channel statistical information in multi-aerial transmission system
A multi-antenna transmission and adaptive transmission technology, applied in diversity/multi-antenna systems, space transmit diversity, advanced technology, etc., can solve the time-varying wireless channel, delay frequency offset of channel estimation and feedback, difficulty in transmitting end Obtaining channel status information, etc.
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[0076] Receiving end:
[0077] 1) If the implicit feedback mode is adopted, calculate the signal-to-noise ratio γ, feed back the signal-to-noise ratio γ to the sending end, and skip to step 6); otherwise, go to step 2).
[0078] 2) Use the received signal for channel estimation, calculate the signal-to-noise ratio γ, and use the formula [4] and formula [5] to calculate the transmission correlation matrix R t and receive correlation matrix R r .
[0079]3) Perform eigendecomposition on the sending correlation matrix and receiving correlation matrix to get U t and U r .
[0080] 4) Using the result of eigendecomposition U t , U r and formula [8] to calculate the channel coupling matrix Ω.
[0081] 5) Change the R t , Ω and γ are fed back to the sending end, and go to step 9).
[0082] sender:
[0083] 6) Use the channel estimation result of the sending end to receive the link H and the channel reciprocity H=H T , according to the formula [4] and formula [5] to calcula...
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