A PO-CI/MC-CDMA Scheme for High Modulation Styles

doi:10.13190/jbupt.200704.14.090

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2007, Vol. 30 ›› Issue (4): 14-18.doi: 10.13190/jbupt.200704.14.090

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A PO-CI/MC-CDMA Scheme for High Modulation Styles

1.Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China; 2.KDDI Research & Development Labs, Yokosuka Kanagawa 2390847, Japan

Received:2006-09-06 Revised:2007-01-17 Online:2007-08-30 Published:2007-08-30

Abstract

Abstract:

Through theoretical spreading principle analysis, it is proved that the benefit of pseudo-orthogonal carrier interferometry (PO-CI) spreading code is not able to be supported when complex signal modulation(for example,quadrature phase-shift keying(QPSK) and quadrature amplitude modu-lation (QAM)) types are employed. On this basis, a feasible structure for its solution is brought forward. Within the structure mentioned, instead of complex modulation patterns, pulse amplitude modulation (PAM) combined with PO-CI spreading code is utilized, it manages to maintain the doubled throughput increase of multicarrier code division multiple access （MC-CDMA） system with minimal loss in performance and no bandwidth expansion.

Key words: pseudo-orthogonal carrier interferometry, pulse amplitude modulation, spreading/despreading, multi-carrier code division multiple access, doubled throughput

CLC Number:

TN911.22

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.

A PO-CI/MC-CDMA Scheme for High Modulation Styles

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