Peak power reduction scheme based on subcarrier scrambling for MC-CDMA systems

被引：17
作者：
Choi, K
Kang, K
Kim, S
机构：
[1] Yeungnam Univ, Sch Elect Engn & Comp Sci, Kyongsan 712749, South Korea
[2] Elect & Telecommun Res Inst, Radio & Broadcasting Res Lab, Taejon 305350, South Korea
来源：
IEE PROCEEDINGS-COMMUNICATIONS | 2004年 / 151卷 / 01期
关键词：
D O I：
10.1049/ip-com:20040407
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 new PAPR (peak-to-average power ratio) reduction scheme is proposed for MC-CDMA (multicarrier-CDMA) using subcarrier scrambling. Based on the fact that the PAPR of the MC-CDMA signal is highly dependent on the scrambling pattern of the subcarriers irrespective of users' data symbols, the optimum fixed scrambling patterns for each combination of user spreading codes are searched to achieve the minimum PAPR. This enables the system to dynamically allocate the optimum scrambling pattern during system operation. The proposed scheme achieves a significant reduction in PAPR compared to random scrambling, especially for a small number of users. A simple suboptimum scrambling scheme is also proposed where a common scrambling pattern is used irrespective of the code combinations.
引用
收藏
页码：39 / 43
页数：5
相关论文
共 50 条
[31]   Power allocation optimization for uplink MC-CDMA systems [J].
Saetang, Prajak ;
Kunaruttanapruk, Suwich ;
Jitapunkul, Somchai .
2006 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATIONS, VOLS 1 AND 2, 2006, :63-66
[32]   A Phase Estimation Scheme for Blind PTS in MC-CDMA Systems [J].
Dan, Lilin ;
He, Xu ;
Xiao, Yue ;
Li, Shaoqian .
2009 INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CIRCUITS AND SYSTEMS PROCEEDINGS, VOLUMES I & II: COMMUNICATIONS, NETWORKS AND SIGNAL PROCESSING, VOL I/ELECTRONIC DEVICES, CIRUITS AND SYSTEMS, VOL II, 2009, :64-67
[33]   Accuracy of Interfering Power Estimation in MC-CDMA Systems [J].
Lestable, Thierry ;
Husson, Lionel ;
Brouet, Jérôme ;
Antoine, Jacques ;
Wautier, Armelle ;
Kumar, Vinod .
GLOBECOM - IEEE Global Telecommunications Conference, 2003, 2 :794-798
[34]   PEAK POWER CONTROL OF MC-CDMA WITH SPECIAL CLASSES OF BINARY SEQUENCES [J].
Gao, Xin ;
Yu, Nam Yul ;
Mao, Zhiwei .
2010 23RD CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING (CCECE), 2010,
[35]   Multimedia transmission in MC-CDMA using adaptive subcarrier power allocation and CFO compensation [J].
Chitra, S. ;
Kumaratharan, N. .
INTERNATIONAL JOURNAL OF ELECTRONICS, 2018, 105 (02) :289-302
[36]   Peak power reduction scheme base on transform kernel scrambling for OFDM systems [J].
Chau-Yun Hsu ;
Hsin-Chieh Chao .
Wireless Personal Communications, 2007, 43 :1499-1509
[37]   A Fairness-based and Adaptive User Grouping and Subcarrier Allocation Algorithm for Grouped MC-CDMA Systems [J].
Huang, Jinri ;
Niu, Zhisheng .
GLOBECOM 2006 - 2006 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, 2006,
[38]   Peak power reduction scheme base on transform kernel scrambling for OFDM systems [J].
Hsu, Chau-Yun ;
Chao, Hsin-Chieh .
WIRELESS PERSONAL COMMUNICATIONS, 2007, 43 (04) :1499-1509
[39]   Subcarrier PIC Scheme for High Capacity CI/MC-CDMA System with Variable Data Rates [J].
Maity, Santi P. ;
Mukherjee, Mithun .
MWS: 2009 IEEE MOBILE WIMAX SYMPOSIUM, 2009, :129-134
[40]   ADAPTIVITY IN MC-CDMA SYSTEMS [J].
Cosovic, Ivan ;
Kaiser, Stefan .
MULTI-CARRIER SPREAD-SPECTRUM, 2006, :45-+
12345