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Volume 30 Issue 5
Dec.  2010
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Liu Chao. A Fast Generalized Complex Sphere Decoder for MIMO Systems[J]. Journal of Electronics & Information Technology, 2008, 30(5): 1189-1192. doi: 10.3724/SP.J.1146.2006.01407
Citation: Liu Chao. A Fast Generalized Complex Sphere Decoder for MIMO Systems[J]. Journal of Electronics & Information Technology, 2008, 30(5): 1189-1192. doi: 10.3724/SP.J.1146.2006.01407

A Fast Generalized Complex Sphere Decoder for MIMO Systems

doi: 10.3724/SP.J.1146.2006.01407
  • Received Date: 2006-09-18
  • Rev Recd Date: 2007-05-28
  • Publish Date: 2008-05-19
  • A fast generalized complex sphere decoder is proposed for under-determined MIMO systems with fewer receive antennas than transmit antennas in this paper. It can handle both the lattice-structured and non-lattice-structured constellations in two-dimensional space. This algorithm adopts optimal search scheme on the under-determined part of the transmitted signal, thus avoids the high complexity of the exhaustive search scheme. The simulation results show that the complexity of the generalized complex sphere algorithm is significantly lower than that of the exhaustive search scheme.
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