New Spreading Codes for MC-CDMA and OFDM Systems

  title={New Spreading Codes for MC-CDMA and OFDM Systems},
  author={Khoirul Anwar and Masato Saito and Takao Hara and Minoru Okada and Heiichi Yamamoto},
  journal={11th IEEE Symposium on Computers and Communications (ISCC'06)},
Recently, there is an interest to increase capacity of multicarrier code division multiplexing (MC-CDMA) and orthogonal frequency division multiplexing (OFDM) by using spreading codes. Some spreading codes only support up to K = N+M, where M \le N. In this paper, we propose a new spreading code with low cross correlation and high autocorrelation while capable of supporting K = 2N+1 users. It means that 2N+1 users or data symbols are able to be transmitted over only N subcarriers. The numerical… CONTINUE READING


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Hara, M. Okada and H. Yamamoto, “A New Design of Carrier Interferometry OFDM with FFT as Spreading Codes”, IEEE Radio and Wireless Symposium • 2006
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