Recursive generation of constant amplitude multi-code DS-CDMA signal

被引:14
作者
Kim, YC [1 ]
机构
[1] Seoul Natl Univ, Dept Elect & Comp Engn, Seoul 130743, South Korea
关键词
D O I
10.1049/el:20031148
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A constant amplitude multi-code CDMA scheme, which achieves an information rate of (3/4)(K) for any K, while Wada's method works only for 3/4 (K = 1) and 9/16 (K = 2), is presented. It has a recursive structure such that the input at the top-level encoder continues to be divided into three groups and lets the lower-level encoder handle the divided input. Finally, groups of three bits are separately encoded at the basic-level encoders and then are spread in combination by pseudo-orthogonal matrix into constant amplitude signal.
引用
收藏
页码:1782 / 1783
页数:2
相关论文
共 50 条
[21]   Constant amplitude transmission of multi-code CDMA symbols using symbol level quantization and MPSK modulation [J].
Kim, SP ;
Ryu, HJ ;
Kim, MJ ;
Hong, EK ;
Park, YW .
7TH WORLD MULTICONFERENCE ON SYSTEMICS, CYBERNETICS AND INFORMATICS, VOL, III, PROCEEDINGS: COMMUNICATION, NETWORK AND CONTROL SYSTEMS, TECHNOLOGIES AND APPLICATIONS, 2003, :496-501
[22]   Error correction by parity check in constant amplitude multi-code CDMA - art. no. 604115 [J].
Kim, YC .
ICMIT 2005: Information Systems and Signal Processing, 2005, 6041 :4115-4115
[23]   EAVESDROPPING ON DS-CDMA SIGNAL [J].
Li, Ming ;
Ti, Guangyu ;
Liu, Qian .
2015 IEEE CHINA SUMMIT & INTERNATIONAL CONFERENCE ON SIGNAL AND INFORMATION PROCESSING, 2015, :933-937
[24]   Joint Frequency-Domain Equalization and Despreading for Multi-Code DS-CDMA Using Cyclic Delay Transmit Diversity [J].
Yamamoto, Tetsuya ;
Takeda, Kazuki ;
Adachi, Fumiyuki .
IEICE TRANSACTIONS ON COMMUNICATIONS, 2009, E92B (05) :1563-1572
[25]   Single-code and multi-code DS/CDMA MAC protocols for video/voice integration [J].
Ma, M ;
Gunawan, E .
COMPUTER SYSTEMS SCIENCE AND ENGINEERING, 2002, 17 (06) :315-324
[26]   Linear transformation of multi-level signal set in multi-code CDMA [J].
Minn, T ;
Siu, KY .
IEEE VTC 53RD VEHICULAR TECHNOLOGY CONFERENCE, SPRING 2001, VOLS 1-4, PROCEEDINGS, 2001, :1239-1243
[27]   Multi dwell Architectures for DS-CDMA code acquisition in fading channels [J].
Caini, C ;
Corazza, GE ;
Vanelli-Coralli, A .
2002 IEEE SEVENTH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES AND APPLICATIONS, VOLS 1-3, PROCEEDINGS, 2002, :214-218
[28]   Quantization effects on a DS-CDMA signal [J].
Ouvry, L ;
Boulanger, C ;
Lequepeys, JR .
1998 IEEE 5TH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES AND APPLICATIONS - PROCEEDINGS, VOLS 1-3, 1998, :234-238
[29]   EFFICIENT MULTI-STAGE DECISION-FEEDBACK MULTIUSER DETECTORS FOR MULTI-CODE DS-CDMA SYSTEM OVER SEVERE MULTIPATH CHANNEL [J].
Chiu, Yu-Lun ;
Hwang, Jeng-Kuang ;
Hsiao, Chun-Chung .
2009 IEEE 20TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, 2009, :3198-3202
[30]   Frequency-domain Iterative Inter-code Interference Combined with Parallel Interference Cancellation for Cooperative-MIMO Multi-code DS-CDMA [J].
Liu, Bo ;
Meng, Weixiao ;
Yu, Qiyue ;
Chen, Xi .
2011 6TH INTERNATIONAL ICST CONFERENCE ON COMMUNICATIONS AND NETWORKING IN CHINA (CHINACOM), 2011, :546-550