Design and Implementation of an Uplink Baseband Receiver for Wideband CDMA Communications(Soecial Section on Soread Spectrum Techniaues and Applications)
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概要
- 論文の詳細を見る
This paper presents architecture design, FPGA implementation, and measurement results of a real-time signal processing circuit for WCDMA uplink baseband receiver. To enhance uplink signal-to-interference-plus-noise ratio (SINR) performance, a four-element antenna array and a four-finger Rake combiner are integrated in the proposed receiver. Moreover, a low-complexity beamforming architecture using a correlator-based beam searcher, a decision-directed carrier synchronization loop, and a matched-filter based channel estimator is also designed. Simulations are based on the standard Doppler-fading scalar channel models provided by 3GPP and an extension to vector channel models that specify angle of arrival for each path is also made for beamformer simulation. Simulation and hardware emulation results show that the proposed architecture meets the specified requirements. In addition, this architecture, with its correlator-based beamformer weights, achieves such performance improvement with relatively low hardware complexity.
- 社団法人電子情報通信学会の論文
- 2002-12-01
著者
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Hsu Steve
Department Of Materials Science And Engineering National Cheng Kung University
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Chiueh Tzi-dar
Department Of Electrical Engineering And Graduate Institute Of Electronics Engineering National Taiw
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MA Hsi-Pin
Department of Electrical Engineering and Graduate Institute of Electronics Engineering, National Tai
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Ma Hsi-pin
Department Of Electrical Engineering And Graduate Institute Of Electronics Engineering National Taiw
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Hsu Steve
Department Of Electrical Engineering And Graduate Institute Of Electronics Engineering National Taiw
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- Design and Implementation of an Uplink Baseband Receiver for Wideband CDMA Communications(Soecial Section on Soread Spectrum Techniaues and Applications)