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- W2139335391 abstract "A way to allow variable data rates in CDMA is by varying the spreading factor in accordance with the data rate requested by the user. A detection scheme suitable for multirate transmission is required in addition to one that combats multiple access interference of other users and intersymbol interference from multipath. In this letter, an energy-add multiuser detection method is combined with a scheme called Cholesky-iterative detection to cope with these challenges. It allows the users to be estimated on a symbol-by-symbol basis, making receiver complexity independent of data package length. Simulation results correspond closely to a single-user lower bound. The results also show that the bit-error probability performances of the various users for the Cholesky-iterative detector are closely clustered, while those of a previously published scheme, decorrelation feedback detection, are more widely spread." @default.
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- W2139335391 date "2001-01-01" @default.
- W2139335391 modified "2023-09-26" @default.
- W2139335391 title "Multiuser detection in multipath environments for variable spreading-factor CDMA systems" @default.
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- W2139335391 doi "https://doi.org/10.1109/26.950338" @default.
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