A low-power ASIC implementation of 2Mbps antenna-rake combiner for WCDMA with MRC and LMS capabilities

A low-power ASIC implementation of 2Mbps antenna-rake combiner for WCDMA with MRC and LMS capabilities

An ASIC implementation of a WCDMA mobile terminal with 2-dimensional adaptive antenna-rake combining is presented in this paper. System analysis shows that adaptive antenna-rake combining techniques can significantly enhance the performance and capacity of cellular systems compared to conventional C...

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Hauptverfasser: Tarighat, A., Grayver, E., Eltawil, A., Frigon, J.-F., Poberezhskiy, G., Hanli Zou, Daneshrad, B.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Adaptive arrays
Application specific integrated circuits
Diversity reception
Hardware
Least squares approximation
Mobile antennas
Multiaccess communication
Performance analysis
RAKE receivers
Resource management
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creator Tarighat, A.
Grayver, E.
Eltawil, A.
Frigon, J.-F.
Poberezhskiy, G.
Hanli Zou
Daneshrad, B.
description An ASIC implementation of a WCDMA mobile terminal with 2-dimensional adaptive antenna-rake combining is presented in this paper. System analysis shows that adaptive antenna-rake combining techniques can significantly enhance the performance and capacity of cellular systems compared to conventional CDMA systems. A hardware efficient receiver architecture is implemented supporting both maximal ratio combining (MRC) and least mean squares (LMS) algorithm. Moreover, the proposed architectures allows for a dynamic and flexible allocation of available processing resources (total of 20 fingers) to different antennas and multipaths based on the instantaneous channel profile. The presented receiver can operate in both normal and space time transmit diversity (STTD) modes. The system was implemented in a 0.18/spl mu/m CMOS process and the improvement was validated through real-time field trials.
doi_str_mv 10.1109/CICC.2005.1568610
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subjects Adaptive arrays
Application specific integrated circuits
Diversity reception
Hardware
Least squares approximation
Mobile antennas
Multiaccess communication
Performance analysis
RAKE receivers
Resource management
title A low-power ASIC implementation of 2Mbps antenna-rake combiner for WCDMA with MRC and LMS capabilities
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