In this letter, we present a performance analysis of the blind adaptive mul
tiuser detector (MUD) proposed in [1], which is based on linearly constrain
ed constant modulus (LCCM) criterion. Global convergence of the algorithm w
ith additive white Gaussian noise (AWGN) is proved and two approximate clos
ed-form solutions of the optimum tap-weight vector are derived. Also the va
lidity of analysis is demonstrated by comparing analytical results with sim
ulated results.