SCM-SM: Superposition coded modulation-aided spatial modulation with a low-complexity detector

Xiaotian Zhou, Liuqing Yang, Cheng Xiang Wang, Dongfeng Yuan

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Spatial modulation (SM) is a spatial multiplexing scheme that utilizes both the signal constellation and antenna index to convey information. In the original SM, traditional modulation schemes such as quadrature amplitude modulation (QAM) are employed for constellation mapping. In this paper, we propose a novel scheme where superposition coded modulation (SCM) is employed to modulate the information onto the constellation points. We also develop a low-complexity iterative detector for our proposed SCM-SM system. Analysis and simulations demonstrate that SCM-SM significantly outperforms the original SM system with the same data rate while maintaining the relatively low complexity, particularly in the high data rate scenario.

Original languageEnglish (US)
Article number6650080
Pages (from-to)2488-2493
Number of pages6
JournalIEEE Transactions on Vehicular Technology
Volume63
Issue number5
DOIs
StatePublished - Jun 2014
Externally publishedYes

Keywords

  • Iterative detection
  • multiple-input-multiple-output (MIMO)
  • spatial modulation (SM)
  • superposition coded modulation (SCM)

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