| 摘要 |
Systems and methodologies are described for equalizing received signals in a wireless communication environment. Using multiple transmit and/or receive antennas and MIMO technology, multiple data streams can be transmitted within a single tone. During equalization (210), receivers can separate data received within a tone into individual data streams. The equalization process generally is computationally expensive. Equalizer functions include the inverse matrix operation, which can be computed using the fast square root method; however, the fast square root method involves large numbers of computations for a set of matrices, where the size of a matrix in the set of matrices increases with the number of transmit or receive antennas. Utilizing a modification of the fast square root method (208), a subset of the elements of the matrices can be selected and updated to reduce the number and/or complexity of computations. Updating comprises determining a rotation matrix in accordance with a Householder reflection approach.
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