Scalable equalizer for multiple-in-multiple-out (MIMO) wireless transmission

摘要

Systems and techniques relating to processing information received from a spatially diverse transmission. In some implementations, an apparatus includes an input configured to receive data that has been transmitted over a wireless channel using multiple transmit antennas, n_t, and multiple receive antennas, n_r; and an equalizer responsive to multiple data streams corresponding to the multiple receive antennas and configured to generate an equalization matrix, G_ntxnr, using a kernel matrix order updated from n_(t−i)xn_(r−j) to n_txn_r, the kernel matrix updates being distributed across preamble processing operations. The input can be responsive to a selectable number of at least four antennas in an orthogonal frequency division multiplexed (OFDM) multiple-in-multiple-out (MIMO) system, and the equalizer can be configured to distribute the kernel matrix updates across multiple training fields of data preambles.