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Blind adaptive code-constrained constant modulus algorithms for CDMA interference suppression in multipath channels
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DOI：10.1109/LCOMM.2005.04022.png)
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摘要
En 中文
A code-constrained constant modulus (CCM) design criterion for linear receivers is investigated for direct sequence code division multiple access (DS-CDMA) in multipath channels based on constrained optimization techniques. A computationally efficient recursive least squares (RLS) type algorithm for jointly estimating the parameters of the channel and the receiver is developed in order to suppress multiaccess (MAI) and inter-symbol interference (ISI). An analysis of the method examines its convergence properties and simulations under non-stationary environments show that the novel algorithms outperform existent techniques.
Keyword:
interference suppression
multiuser detection
DS-CDMA
constant modulus cost function
blind adaptive algorithms
