00000cab a22000003a 4500 UP-99796217609350998 Buklod 20231007234449.0 m |o d | ta 100623s xx d | ||r ||||| || DENGII eng Yu Song Blind adaptive reduced-rank detection for DS-CDMA signals in multipath channels. pp. 1960-1970 Blind adaptive multiuser detection for direct sequence code division multiple access (DS-CDMA) signals over static and time-varying intersymbol interference (ISI) limited channels is considered. Blind adaptive detectors must be robustified for ISI channels, when there is significant mismatch between the received signature vector and the transmitted code (assumed known at the receiver). A new low-complexity detector is presented that improves on some previously proposed methods without explicit estimation of the ISI channel. The key innovation is a reduced-rank detector architecture combined with an efficient subspace tracker that yields direct accurate estimation of the desired user's received signature. Several representative simulation examples of detector output signal-to-noise-and-interference ratio (SINR) for fading channels are provided in support of our claims of improved efficacy of the method DS-CDMA signals. ISI. Accurate estimation. Blind adaptive reduced-rank detection. Direct sequence code division multiple access. Fading channels. Low-complexity detector. Multipath channels. Output signal-to-noise-and-interference ratio. Received signature vector. Reduced-rank detector architecture. Static channels. Subspace tracker. Time-varying intersymbol interference limited channels. Transmitted code. IEEE Journal on selected areas in communications 17, 11 (1999). FO UPD DENG-II Article