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|Title:||The kaiman filter as the optimal linear minimum mean-squared error multiuser cdma detector|
|Authors:||Lim, T.J. |
|Keywords:||Code division multiple access (cdma)|
Linear minimum mean-squared error (mmse) detection
|Source:||Lim, T.J.,Ma, Y. (2000). The kaiman filter as the optimal linear minimum mean-squared error multiuser cdma detector. IEEE Transactions on Information Theory 46 (7) : 2561-2566. ScholarBank@NUS Repository. https://doi.org/10.1109/18.887863|
|Abstract:||In this paper, it is shown that a first-order linear state-space model applies to the asynchronous code-division multiple-access (CDMA) channel, and thus the Kaiman filter produces symbol estimates with the minimum mean-squared error (MMSE) among all linear filters, in long- or short-code systems for a given detection delay. This result may be used as a benchmark against which to compare the performance of other linear detectors in asynchronous channels. It also reveals that a time-varying recursive filter with a fixed and finite complexity implements the fixed-lag linear MMSE (LMMSE) detector, which hitherto has been assumed to require a processing window (and hence complexity) that grows with time. © 2000 IEEE.|
|Source Title:||IEEE Transactions on Information Theory|
|Appears in Collections:||Staff Publications|
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