全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

可用于高阶调制的伪正交载波干涉MC-CDMA方案

DOI: 10.13190/jbupt.200704.14.090, PP. 14-18

Keywords: 伪正交载波干涉,脉冲幅度调制,扩频/解扩,多载波码,分多址接入,系统容量

Full-Text   Cite this paper   Add to My Lib

Abstract:

通过对伪正交载波干涉(POCI)序列在不同调制方式下扩频解扩原理的分析,论证了其在复信号高阶调制(如四相移相键控(QPSK)、正交幅度调制(QAM)等)下无法正确解码,在此基础上提出了一种可行的扩频调制结构.该结构结合POCI扩频码,使用脉冲幅度调制(PAM)方式取代通常使用的复信号调制方式,能在仅有很小性能损失且不增加系统带宽的条件下,将传统多载波码分多址接入(MCCDMA)系统容量提高2倍.

References

[1]  Nassar C R, Michelini M, Wu Zhiqiang. High-performance MC-CDMA via carrier interferometry codes[J]. Vehicular Technology, IEEE Transactions, 2001, 50(6): 1344-1353.
[2]  Nassar C R, Natarajan B, Shattil S. Introduction of carrier interferometry to spread spectrum multiple access//Proceeding of Wireless Communications and Systems. Dallas: IEEE Press, 1999:4.1-4.5.
[3]  Wiegandt D A, Nassar C R, Wu Z. Overcoming peak-to-average power ratio issues in OFDM via carrier interferometry codes//IEEE VTC. Atlantic: IEEE Press, 2001: 660-663.
[4]  He Jianhui, QuanZiyi, Men Aidong. PAPR reduction in ofdm systems with large number of sub-carriers by carrier interferometry approaches[J]. Journal of China Universities of Posts and Telecommunications, 2004, 11(4): 91-94.
[5]  Wiegandt D A, Wu Zhiqiang. High-throughput, high-performance OFDM via pseudo-orthogonal carrier interferometry spreading codes [J]. IEEE Transmissions on Communications, 2003,51(7): 1123-1134.
[6]  Wiegandt D A, Wu Zhiqiang, Nassar C R. High-throughput, high-performance OFDM via pseudo-orthogonal carrier interferometry spreading codes[J]. Communications, IEEE Transactions, 2003, 51(7): 1123-1134.
[7]  Wiegandt D A, Nassar C R. High-throughput, high-performance OFDM via pseudo-orthogonal carrier interferometry coding//PIMRC. San Diego: IEEE Press, 2001: G-98-G-102.
[8]  Wiegandt D A, Nassar C R. High-throughput, high-performance OFDM via pseudo-orthogonal carrier interferometry type 2//WPMC. Hawaii: IEEE Press, 2002: 729-733.
[9]  Wiegandt D A, Nassar C R. Higher-speed, higher-performance 802.11a wireless LAN via carrier-interferometry orthogonal frequency division multiplexing //Communications, ICC. New York: IEEE Press, 2002: 527-532.
[10]  Natarajan B, Nassar R, Shattil S. High-throughput high-performance tdma through pseudo orthogonal car-rier interferometry pulse shaping[J]. IEEE Transactions on Wireless Communications, 2004, 3(3): 689-694.
[11]  Natarajan B, Wu Zhiqiang, Nassar C R. Large set of CI spreading codes for high-capacity MC-CDMA[J]. Communications, IEEE Transactions, 2004, 52(11): 1862-1866.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133