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Design of Next-Generation CDMA Using Orthogonal Complementary Codes and Offset Stacked Spreading

TitleDesign of Next-Generation CDMA Using Orthogonal Complementary Codes and Offset Stacked Spreading
Publication TypeJournal Article
Year of Publication2007
AuthorsChen, H-H., D. Hank, M. E. Magana, and M. Guizani
JournalIEEE Wireless Communications
Volume14
Issue3
Pagination61 - 69
Date Published06/2007
ISSN1536-1284
Abstract

This article presents an innovative code-division multiple access system architecture that is based on orthogonal complementary spreading codes and time-frequency domain spreading. The architecture has several advantages compared to conventional CDMA systems. Specifically, it offers multiple-access-interference-free operation in AWGN channels, reduces co-channel interference significantly, and has the potential for higher capacity and spectral efficiency than conventional CDMA systems. This is accomplished by using an "offset stacked" spreading modulation technique followed by quadrature amplitude modulation, which optimizes performance in a fading environment. This new spreading modulation scheme also simplifies the rate matching algorithms relevant for multimedia services and IP-based applications.

DOI10.1109/MWC.2007.386614
Short TitleIEEE Wireless Commun.