Enhancement of Constant Amplitude Coding for Multicode Wideband CDMA Systems
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概要
- 論文の詳細を見る
A constant amplitude transmission scheme for multicode wideband CDMA systems is proposed. Multicode wideband CDMA systems result in large amplitude fluctuation because the multicode signal is the sum of constituent code channel signals. This large amplitude fluctuation brings out large non-linear distortion and then, if unaccounted, can significantly degrade the bit error rate (BER) performance. Constant amplitude transmission, achieved by using a Walsh code and parity generator, is proposed to combat the large amplitude fluctuation and reduce the peak-to-average power ratio (PAPR). Unlike other constant amplitude transmission scheme, the proposed scheme does not use a redundant code channel. Computer simulation results show that the proposed scheme improves BER performance significantly and that the proposed scheme is extremely effective to the non-linear distortion of high power amplifier (HPA).
- 社団法人電子情報通信学会の論文
- 2000-11-25
著者
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Kim Su
The Department Of Electrical Engineering & Computer Science Korea Advanced Institute Of Science
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LEE Hwang
the Department of Information and Communication Engineering, Korea Advanced Institute of Science and
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Yoon Soon
The Telecommunication R&d Center Samsung Electronics Co. Ltd.
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JUNG Gill
the Department of Electrical Engineering & Computer Science, Korea Advanced Institute of Science and
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Lee Hwang
The Department Of Electrical Engineering & Computer Science Korea Advanced Institute Of Science
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Lee Hwang
The Department Of Electrical Engineering & Computer Science Korea Advanced Institute Of Science
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Jung Gill
The Department Of Electrical Engineering & Computer Science Korea Advanced Institute Of Science
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