Walsh-Like Nonlinear Phase Orthogonal Codes for Direct Sequence CDMA Communications

  title={Walsh-Like Nonlinear Phase Orthogonal Codes for Direct Sequence CDMA Communications},
  author={Ali N. Akansu and Radha Poluri},
  journal={IEEE Transactions on Signal Processing},
  • A. Akansu, R. Poluri
  • Published 1 July 2007
  • Mathematics, Computer Science
  • IEEE Transactions on Signal Processing
Walsh codes are perfectly orthogonal binary (antipodal) block codes that found their use in many popular applications over several decades including synchronous multiuser communications. It is well known in the literature that they perform poorly for the case of asynchronous multiuser communications. Therefore, the near-orthogonal and nonlinear phase gold codes with better performance are the preferred user codes in asynchronous direct sequence code division multiple access (DS-CDMA… Expand
This paper has limited its studies to single and two users over AWGN channel in order to work with all popular codes such as Gold, Kasami, Hadamard–Walsh and new orthogonal sequence with an intention of highlighting adaptive nature and increased capacity of new orthogsonal sequence for DS-CDMA. Expand
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  • Mathematics, Computer Science
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