Design of an MC-CDMA system that uses complete complementary orthogonal spreading codes

Mario E. Magaña, Thunyawat Rajatasereekul, Daniel Hank, Hsiao Hwa Chen

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


This paper presents a multicarrier code-division multiple-access (CDMA) system architecture that is based on complete complementary orthogonal spreading codes. The architecture has several advantages as compared to conventional CDMA systems. Specifically, it offers multiple-access interference-free operation in additive white Gaussian noise channels, reduces cochannel interference significantly, and has the potential of higher capacity and spectral efficiency than conventional CDMA systems. This is accomplished by using an "offset stacked" spreading modulation technique. To maintain good performance in the presence of fading, the offset stacked modulator is followed by a quadrature-amplitude modulation map, which is designed to optimize performance in a fading environment. This new modulation scheme also simplifies the rate-matching algorithms that are relevant for multimedia services and Internet Protocol-based applications.

Original languageEnglish
Pages (from-to)2976-2989
Number of pages14
JournalIEEE Transactions on Vehicular Technology
Issue number5
Publication statusPublished - 2007 Sep

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics


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