An FPGA Implementation of an MML-DFE for Spatially Multiplexed MIMO Systems 


Vol. 31,  No. 11, pp. 1167-1175, Nov.  2006


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  Abstract

The ML-DFE(Maximum Likelihood-Decision Feedback Equalization) can be viewed as either a suboptimal signal detection method for reducing hardware complexity of ML or an enhanced detection method for reducing the effect of error propagation of SIC(Successive Interference Cancellation) in spatially multiplexed MIMO systems such as V-BLAST. The ML-DFE can achieve a higher diversity in rich scattering environments as well as reducing the error propagation effect by combing ML decoding with the DFE. In this paper, an MML-DFE(Modified Maximum Likelihood-Decision Feedback Equalization) is proposed to reduce the hardware complexity of the ML-DFE, without compromising performance. It is shown by FPGA implementation that the proposed MML-DFE can achieve the same performance as the ML-DFE with significantly reduced hardware complexity.

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  Cite this article

[IEEE Style]

T. Im, K. Lee, C. Park, K. Jeong, S. Yu, J. Kim, Y. S. Cho, "An FPGA Implementation of an MML-DFE for Spatially Multiplexed MIMO Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 11, pp. 1167-1175, 2006. DOI: .

[ACM Style]

Tae-Ho Im, Kyu-In Lee, Chang-Hwan Park, Ki-Cheol Jeong, Sungwook Yu, Jae-kwon Kim, and Yong Soo Cho. 2006. An FPGA Implementation of an MML-DFE for Spatially Multiplexed MIMO Systems. The Journal of Korean Institute of Communications and Information Sciences, 31, 11, (2006), 1167-1175. DOI: .

[KICS Style]

Tae-Ho Im, Kyu-In Lee, Chang-Hwan Park, Ki-Cheol Jeong, Sungwook Yu, Jae-kwon Kim, Yong Soo Cho, "An FPGA Implementation of an MML-DFE for Spatially Multiplexed MIMO Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 11, pp. 1167-1175, 11. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880