Adaptive multi-user uplink resource allocation with imperfect CSI

In this paper, the effect of the imperfect channel stated information (CSI) on the system performance of the radio resource management is investigated for the uplink transmission in multi-user CDMA systems. The imperfect CSI introduces the constellation-point dependent symbol error rate (SER), which correspondingly yields the nonconvex and nondifferentiable throughput function. Then, a bisection based iteration algorithm is proposed to solve the throughput maximization problem subject to certain power constraints.