A Low Complexity Decoder for Quasi-Orthogonal Space Time Block Codes

作者：Alabed Samer J^*; Paredes Javier M; Gershman Alex B

来源：IEEE Transactions on Wireless Communications, 2011, 10(3): 988-994.

DOI：10.1109/TWC.2011.010411.101263

• Multiple-input multiple-output (MIMO) systems
• quasi-orthogonal space time block codes
• differential space-time coding (DSTC)
• low decoding complexity

In this paper, a low-complexity suboptimal decoder for coherent and non-coherent quasi-orthogonal space time block codes with three and four transmit antennas is proposed. Our decoder enjoys a nearly linear complexity and approximately the same performance as the optimal maximum-likelihood (ML) decoder. Simulations show the advantages of the proposed decoder with respect to several other popular approaches to the coherent and non-coherent decoding.

• 出版日期2011-3