High-performance MC-CDMA via carrier interferometry codes

被引：104

作者：

Natarajan, B ^{[1
]}

Nassar, CR

Shattil, S

Michelini, M

Wu, ZQ

机构：

[1] Colorado State Univ, Dept Elect & Comp Engn, Ft Collins, CO 80523 USA

[2] Idris Commun, Boulder, CO 80303 USA

[3] Univ Florence, Dept Elect Engn, I-50139 Florence, Italy

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2001年 / 50卷 / 06期

关键词：

carrier interferometry; complex sequences; frequency diversity; multicarrier code division multiple access (MC-CDMA);

D O I：

10.1109/25.966567

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：

This paper introduces the principles of interferometry to multicarrier code division multiple access (MC-CDMA.). Specifically, we propose the use of MC-CDMA with novel carrier interferometry (CI) complex spreading codes. The CI/MC-CDMA method, applied to mobile wireless communication systems, offers enhanced performance and flexibility relative to MC-CDMA with conventional spreading codes. Specifically, assuming a frequency selective Rayleigh-fading channel, CI/MC-CDMAs performance matches that of orthogonal MC-CDMA using Hadamard-Walsh codes up to the MC-CDMA N user limit; and, CI MLC-CDMA provides the added flexibility of going beyond N users, adding up to N - 1 additional users with pseudo orthogonal positioning. When compared to MC-CDMA schemes capable of supporting greater than N users, CI/MC-CDMAs performance exceeds that of MC-CDMA. Additionally, this new system is analyzed in the presence of phase jitters and frequency offsets and is shown to be robust to both cases.

引用

页码：1344 / 1353

页数：10

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