HIGH-SPEED IN-MEMORY QR DECOMPOSITION USING FAST PLANE ROTATIONS

摘要

A system and method for processing an input matrix and a MIMO receiver employing the system or the method. In one embodiment, the system includes: (1) a transformer configured to receive a frame of complex data representing only some elements of an input matrix and perform a fast plane rotation on the complex data to yield rotated data and (2) a matrix updater coupled to the transformer and configured to update a memory configured to contain an output matrix with the rotated data. In one embodiment, the system and method are to estimate and mitigate alien cross-talk experienced in a vectored DSL communication system.