I/Q column-wise complementary codes for interference-resistant CDMA communication systems

Guo Dong Li, Wei Xiao Meng, Hsiao Hwa Chen

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)


Motivated by growing demand for high-speed wireless communications, we proposed to implement code division multiple access systems based on orthogonal complementary codes (OCC-CDMA). While an OCC-CDMA system indeed offers ideal correlation properties, its capacity is strictly constrained by the number of element codes each user may use. In this paper, we suggest to use in-phase/quadrature (I/Q) column-wise complementary (IQCC) codes to implement a CDMA system to support 2M users, where M stands for the number of element codes in a flock of IQCC codes assigned to a user. The IQCC codes were designed to fit quadrature phase-shift keying modulation, where odd and even chips can be transmitted via I and Q carriers. We analyze correlation properties of the IQCC codes and introduce a CDMA system design based on the codes. The analytical results show that out-of-phase autocorrelation and cross-correlation functions are zero for any relative time shifts. Thus, a CDMA system implemented by the IQCC codes has an inherent capability to mitigate multiple access interference and multipath interference.

頁(從 - 到)4-12
期刊IEEE Systems Journal
出版狀態Published - 2015 三月 1

All Science Journal Classification (ASJC) codes

  • 控制與系統工程
  • 資訊系統
  • 電腦科學應用
  • 電腦網路與通信
  • 電氣與電子工程


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