TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Chen, Hsiao-Hwa A1 - Hank, Daniel A1 - MagaƱaz, Mario E. A1 - Guizani, Mohsen T1 - Design of next-generation cdma using orthogonal complementary codes and offset stacked spreading JF - IEEE Wireless Communication N2 - 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. KW - CDMA KW - Codierung KW - Verteilung Y1 - 2007 SN - 1536-1284 SS - 1536-1284 U6 - https://doi.org/10.1109/MWC.2007.386614 DO - https://doi.org/10.1109/MWC.2007.386614 VL - 14 IS - 3 SP - 61 EP - 69 ER -