COMMUNICATION SYSTEM AND TECHNIQUE USING QR DECOMPOSITION WITH A TRIANGULAR SYSTOLIC ARRAY

An apparatus, system, and method to perform QR decomposition of an input complex matrix are described. The apparatus may include a triangular systolic array to load the input complex matrix and an identity matrix, to perform a unitary complex matrix transformation requiring three rotation angles, and to produce a complex unitary matrix and an upper triangular matrix. The upper triangular matrix may include real diagonal elements. Other embodiments are described and claimed.