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Optimum PSK Signal Mapping for Multi-Phase Binary-CDMA Systems

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Authors
Seo, Yeong-Jin; Lee, Yong-Hwan
Issue Date
2003-12
Citation
DSPCS 2003. 7th International Symposium on Digital Signal Processing and Communication Systems, 2003
Keywords
binary-CDMAPSKMulti-Phase
Abstract
Although the CDMA system can efficiently
support multiple users, may suffer from peak-to-average
power ratio (PAPR) increases as the number of users
increases. As a result, it needs highly linear power
amplifiers with a large back off. Recently, a new CDMA
scheme, called binary CDMA (B-CDMA), has been
proposed to alleviate this problem by quantizing the
envelope of multi-user CDMA signals into a small
number of levels, while preserving the advantages of
CDMA signaling [1]. The performance of B-CDMA
system is mainly determined by the quantization and
detection error. The quantization noise can be minimized
using the Lloyd-max algorithm [2]. In this paper, the
optimum PSK signal is designed to minimize the
detection error in multi-phase B-CDMA systems. Finally,
the analytic results are verified by computer simulation
Language
English
URI
http://www.dspcs-witsp.com/DSPCS2003/

http://hdl.handle.net/10371/7673
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Others_전기·정보공학부
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