Interpolation-based Precoding Approximation Algorithm for Low Complexity in Multiuser MIMO-OFDM Systems 


Vol. 35,  No. 11, pp. 1027-1037, Nov.  2010


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  Abstract

In this paper, we propose the linear interpolation-based BD (Block Diagonalization) precoding approximation algorithm for low complexity in downlink multiuser MIMO-OFDM (Multiple-input Multiple-output Orthogonal Frequency Division Multiplexing) systems. In the case of applying the general BD precoding algorithm to multiuser MIMO-OFDM systems, the computational complexity increases in proportional to the number of subcarriers. The proposed interpolation-based BD precoding approximation algorithm can be achieved similar SER performance with general BD algorithm and can decrease the computational complexity. It is proved that proposed algorithm can achieve the significantly decreased computational complexity by computer simulation.

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  Cite this article

[IEEE Style]

D. Lim, B. Kim, K. Choi, "Interpolation-based Precoding Approximation Algorithm for Low Complexity in Multiuser MIMO-OFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 11, pp. 1027-1037, 2010. DOI: .

[ACM Style]

Dong-ho Lim, Bong-seok Kim, and Kwonhue Choi. 2010. Interpolation-based Precoding Approximation Algorithm for Low Complexity in Multiuser MIMO-OFDM Systems. The Journal of Korean Institute of Communications and Information Sciences, 35, 11, (2010), 1027-1037. DOI: .

[KICS Style]

Dong-ho Lim, Bong-seok Kim, Kwonhue Choi, "Interpolation-based Precoding Approximation Algorithm for Low Complexity in Multiuser MIMO-OFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 11, pp. 1027-1037, 11. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880