A Space Division Multiple Access Technique for Downlink MIMO Systems 


Vol. 29,  No. 9, pp. 1022-1030, Sep.  2004


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  Abstract

The next generation cellular radio systems require high data rate transmission and large system capacity In order to meet these requirements, multiple antennas can be used at the base and mobile stations, forming MIMO(multiple-input, multiple-output) channels This paper considers a downlink MIMO system assuming a large number of base station antennas, a small number of mobile station antennas, and rich-scattering, quasi-stationary, and flat-fading channel environments When the channel state information is given at the base station in a single user system, a MIMO technique with SVD(singular value decomposition) and water-filling can achieve the maximal downlink channel capacity. In multi-user environments, however, SDMA(space division multiple acces) technique can be used to further increase the total channel capacity supported by the base station This paper proposes a MIMO SDMA technique which can transmit parallel data streams to each of multiple users. The proposed method. can achieve higher total channel capacity than SVD-based MIMO techniques or conventional SDMA using smart antennas

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  Cite this article

[IEEE Style]

M. Rim, "A Space Division Multiple Access Technique for Downlink MIMO Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 9, pp. 1022-1030, 2004. DOI: .

[ACM Style]

Minjoong Rim. 2004. A Space Division Multiple Access Technique for Downlink MIMO Systems. The Journal of Korean Institute of Communications and Information Sciences, 29, 9, (2004), 1022-1030. DOI: .

[KICS Style]

Minjoong Rim, "A Space Division Multiple Access Technique for Downlink MIMO Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 9, pp. 1022-1030, 9. 2004.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880