Lattice Decoding for Joint Detection in Direct-Sequence CDMA Systems Academic Article uri icon

abstract

  • A new joint detection method based on sphere packing lattice decoding is presented in this paper. The algorithm is suitable for both synchronous and asynchronous multiple access direct-sequence code-division multiple-access (DS-CDMA) systems, and it may jointly detect up to 64 users with a reasonable complexity. The detection complexity is independent of the modulation size and large M-PAM or M-QAM constellations can be used. Furthermore, a theoretical gain analysis is performed in which the multiple-access system performance is derived from the lattice parameters.

author list (cited authors)

  • Brunel, L., & Boutros, J. J.

citation count

  • 40

publication date

  • April 2003