Blind adaptive H∞ multiuser detection for CDMA systems

This paper addresses the issue of employing a generalized sidelobe canceler (GSC) without and with subweight partition scheme to describe blind H-infinity multiuser detection. Although the recursive least-squares (RLS) algorithm with subweight partition can improve the performance of multiuser detector, it only suits for uncorrelated signal. It has shown that the adaptive H-infinity algorithm with subweight approach demonstrates the advantages of faster convergence speed, insensitivity of dynamic estimate error, and suitable arbitrary noise signals than the H-infinity and RLS-based adaptive algorithms.