Finite Precision Decorrelating Receivers for Multi - UserCDMA
نویسنده
چکیده
The design of single-user decorrelating receivers employing nite-precision sequences for despreading is considered. The problem is formulated as a non-linear bounded integer optimization problem which is shown to be NP-hard. A branch-and-bound algorithm for nding the best nite-precision decorrelating sequence is described. Numerical examples demonstrate that the loss in performance between the optimum, innnite-precision and the best nite-precision decorrelator is small even for large channel occupancies. Some sub-optimum algorithms are investigated which greatly reduce the computational complexity associated with nding good nite-precision decorrelator sequences.
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تاریخ انتشار 1996