Name
Title | ||
|---|---|---|
Adaptive multiuser receiver with joint channel and time delay estimation of CDMA signals based on the square-root unscented filter |
Abstract | ||
|---|---|---|
The paper discusses an adaptive multiuser receiver for CDMA systems in which the scaled unscented filter (SUF) and the square root unscented filter (SURF) are used for joint estimation and tracking of the code delays and multipath coefficients of the received CDMA signals. The proposed channel estimators are more near-far resistant than the conventional extended Kalman filter (EKF) and present lower complexity than the conventional particle filter (PF) based methods. To present meaningful performance measures, the modified Cramer-Rao lower bound (CRLB) and computational complexity metrics are derived for the proposed and existing channel estimators. Computer simulation results demonstrate the superior performance of the proposed channel estimators. The proposed estimators are also shown to exhibit lower complexity relative to the PF. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1016/j.dsp.2007.11.007 | Digital Signal Processing |
Keywords | Field | DocType |
nonlinear recursive filter,cdma signal,scaled unscented filter,conventional extended kalman filter,extended kalman filter,channel estimation,cdma system,conventional particle filter,proposed estimator,joint channel,time delay estimation,adaptive multiuser receiver,square-root unscented filter,square root unscented filter,multiuser detection,proposed channel estimator,computational complexity metrics,code division multiple access (cdma),existing channel estimator,unscented filter,lower complexity,particle filter,cramer rao lower bound,computer simulation,computational complexity,code division multiple access | Extended Kalman filter,Root-raised-cosine filter,Control theory,Multiuser detection,Adaptive filter,Kernel adaptive filter,Ensemble Kalman filter,Mathematics,Filter design,Estimator | Journal |
Volume | Issue | ISSN |
19 | 3 | Digital Signal Processing |
Citations | PageRank | References |
2 | 0.39 | 13 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jang-Sub Kim | 1 | 133 | 13.04 |
| Dong-Ryeol Shin | 2 | 124 | 27.03 |
| Erchin Serpedin | 3 | 1407 | 127.31 |