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Du Na, Xu Da-zhuan. A Low Complexity Scheme for Space-Time Multi-user Iterative Detection[J]. Journal of Electronics & Information Technology, 2009, 31(2): 396-399. doi: 10.3724/SP.J.1146.2007.01446
Citation: Du Na, Xu Da-zhuan. A Low Complexity Scheme for Space-Time Multi-user Iterative Detection[J]. Journal of Electronics & Information Technology, 2009, 31(2): 396-399. doi: 10.3724/SP.J.1146.2007.01446

A Low Complexity Scheme for Space-Time Multi-user Iterative Detection

doi: 10.3724/SP.J.1146.2007.01446
  • Received Date: 2007-09-11
  • Rev Recd Date: 2008-10-20
  • Publish Date: 2009-02-19
  • In multiuser space-time coding system the research already made is almost focused on STTC and STBC scheme. For this reason, a multiuser space-time coding system combined with Turbo-BLAST scheme is proposed. The conventional iterative receiver with Symbol-Level Cancellation (SLC) and detection still has a high computation complexity, so a low complexity iterative receiver scheme with Bit-Level Cancellation (BLC) and detection is proposed which can performs bit-level cancellation by decomposing of an M-QAM constellation into a linear combination of binary constellations. Theoretic analysis and simulation results show that the proposed scheme has a low complexity with no performance degradation compared with conventional iterative receiver, while the high spectral efficiency of the system from BLAST is retained.
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