A New Decorrelating RAKE Receiver for Long-code WCDMA
نویسنده
چکیده
منابع مشابه
Computational structures for blind long-code WCDMA receivers
Long-code wideband CDMA receivers are for computational reasons usually based on simple matched-filter techniques, and hence suffer from multiaccess interference. To mitigate this problem, we propose computationally efficient decorrelating RAKE and MMSE receivers for the uplink of long-code CDMA systems. The decorrelating matched filter eliminates multiaccess interference by code matrix inversi...
متن کاملPerformance Analysis of Beam-Former Rake receiver and Adaptive Rake receiver for WCDMA
Direct-sequence code-division multiple-access (DSCDMA) cellular systems, such as Wideband CDMA (WCDMA), are limited in performance by interference. Several types of Rake Receivers like A-Rake, S-Rake, P-Rake, Adaptive frequency Rake, Time frequency Rake, Conventional MMSE Rake and Adaptive MMSE rake are used for WCDMA. A Beam formerRake receiver can be an effective solution to provide the recei...
متن کاملA Low-Complexity Blind Multiuser Receiver for Long-Code CDMA
Receivers for long-code systems are for computational reasons usually based on simple matched-filter techniques, and hence suffer frommultiaccess interference. Decorrelating RAKE andMMSE receivers do not have this problem but have not been widely studied due to the apparent complexity of the inversion of a large code matrix. Tong, van der Veen Dewilde, and Sung (IEEE Tr. Signal Proc., 2003) der...
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A downlink receiver is proposed for space-time block coded CDMA systems operating in multipath channels. By combining the powerful RAKE receiver concept for a frequency selective channel with space-time decoding, it is shown that the performance of mobile receivers operating in the presence of channel fading can be improved significantly. The proposed receiver consists of a bank of decorrelatin...
متن کاملBlind decorrelating RAKE receivers for long-code WCDMA
The problem of blind and semiblind channel estimation and symbol detection is considered for long-code wideband code division multiple access (CDMA) systems, including systems with multirate and multicode transmissions. A decorrelating matched filter, implemented efficiently in state-space, eliminates multiaccess interference and produces a bank of vector processes. Each vector process spans a ...
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تاریخ انتشار 2002