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In time-division synchronous code-division multiple access (TD-SCDMA) system, power control is one of the key technologies of radio resource management It plays a significant role in guaranteeing the high quality communication. In this paper, we propose an adaptive power control algorithm, which is easier implemented than widely used algorithms, for uplink of the power control module through a simple...
The minimum bit-error rate (MBER) linear multiuser detection of direct-sequence code-division multiple-access (DS-CDMA) communications is considered. It is shown that the problem of MBER linear multiuser detection is equivalent to a constrained optimization problem where the constrained space is the surface and interior of a hyperellipsoid. It is further shown that any solution of the constrained...
Constant modulus (CM) is an important criterion in multiuser detection. Since the CM cost functions are non-convex and local minima exist. It is necessary to confine the searching space. In the paper we study the constraints for CM-based multiuser detection. A new constraint based on the MMSE criterion is proposed. Simulation results show the proposed algorithm is superior to some existing linearly...
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