Adaptive power control and MMSE interference suppression

Power control algorithms assume that the receiver structure is fixed and it eratively update the transmit powers of the users to provide acceptable qua lity of service while minimizing the total transmitter power. Multiuser det ection, on the other hand, optimizes the receiver structure with the assump tion that the users have fixed transmitter powers. In this study, we combin e the two approaches and propose an iterative and distributed power control algorithm which iteratively updates the transmitter powers and receiver fi lter coefficients of the users. We show that the algorithm converges to a m inimum power solution for the powers, and an MMSE multiuser detector for th e filter coefficients.