| 摘要 |
An arrangement where a transmitter has a plurality of transmitting antennas that concurrently transmit the same symbol, and where the signal delivered to each transmitting antenna is weighted by a factor that is related to the channel transmission coefficients found between the transmitting antenna and receiving antennas. In the case of a plurality of transmit antennas and one receive antenna, where the channel coefficient between the receive antenna and a transmit antenna i is hi, the weighting factor is hi* divided by a normalizing factor, a, which is ( ∑ k = 1 K h k 2 ) 1 / 2 , where K is the number of transmitting antennas. When more than one receiving antenna is employed, the weighting factor is 1 a ( gH ) H , where g=[g1 . . . gL), H is a matrix of channel coefficients, and alpha is a normalizing factor ( ∑ p = l L ∑ q = l L ∑ k = l K h p k h qk * ) 1 / 2 .
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