Data Stream Allocation for Fair Performance in Multiuser MIMO Systems 


Vol. 34,  No. 12, pp. 1006-1013, Dec.  2009


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  Abstract

This paper proposes a data stream allocation technique for fair capacity performance in multiuser multiple-input multiple-output (MIMO) systems using block diagonalization (BD) algorithm. Conventional studies have been focused on maximum sum capacity. Thus, there is a very large difference of capacity among users, since user capacity unfairly distributed according to each user channel environment. In additional, poor channel user has very small capacity, since base station allocates the power by using water-filling technique. Also, almost studies limited itself to obtain the additional gain by using the same number of data streams for all users. In this paper, we propose the technique for maximizing sum capacity under the fair performance constraint by allocating data stream according to user channel environment. Also, proposed algorithm has more gain of sum capacity and transmit power than conventional equal allocation via computer simulation.

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  Cite this article

[IEEE Style]

D. Lim and K. Choi, "Data Stream Allocation for Fair Performance in Multiuser MIMO Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 12, pp. 1006-1013, 2009. DOI: .

[ACM Style]

Dong-ho Lim and Kwonhue Choi. 2009. Data Stream Allocation for Fair Performance in Multiuser MIMO Systems. The Journal of Korean Institute of Communications and Information Sciences, 34, 12, (2009), 1006-1013. DOI: .

[KICS Style]

Dong-ho Lim and Kwonhue Choi, "Data Stream Allocation for Fair Performance in Multiuser MIMO Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 12, pp. 1006-1013, 12. 2009.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880