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Volume 27 Issue 4
Apr.  2005
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Wang Jun, Zhu Shi-hua, Wang Lei . On Channel Capacity of MIMO Systems[J]. Journal of Electronics & Information Technology, 2005, 27(4): 588-591.
Citation: Wang Jun, Zhu Shi-hua, Wang Lei . On Channel Capacity of MIMO Systems[J]. Journal of Electronics & Information Technology, 2005, 27(4): 588-591.

On Channel Capacity of MIMO Systems

  • Received Date: 2003-10-22
  • Rev Recd Date: 2004-06-15
  • Publish Date: 2005-04-19
  • The paper studies the capacity of a Multiple Input Multiple Output (MIMO) system with correlated fading under the constrain of fixed space for the receiver UCA antennas. The fading correlation model is established and the impacts of the number of antennas and scattering angle on the channel system capacity are investigated. Based on the random theory, a closed-form expression for the channel capacity of an M by N MIMO system is derived. Analysis shows that the channel capacity of a MIMO system is mainly determined by eigenvalues of the fading correlated matrix. Simulation shows that the channel capacity is saturated when the number of antennas increases to a certain point.
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  • Foschini G J. Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas[J]. Bell Labs Technical Journal, 1996,2(3): 41 - 59.[2]Foschini G J, Gans M J. On limits of wireless communications in a fading environment when using multiple antennas [J].Wireless Personal Communications.1998, 6(3):311-[3]Chuah C N, Tse D, Kahn J M, et al.. Capacity scaling in MIMO wireless systems under correlated fading [J].IEEE Trans. on Information Theory.2002, 48(3):637-[4]Salz J, Winters J H. Effect of fading correlation on adaptive arrays in digital mobileradio [J]. IEEE Trans. on VT, 1994, 43(4):1049- 1057.[5]Gray R M. On the asymptotic eigenvalue distribution of Toeplitz matrices [J].IEEE Trans. on Information Theory.1972, 18(6):725-[6]Rapajic P B. Information capacity of the space division multiple access mobile communication system [J].Wireless Personal Communications.1999, 11(1):131-[7]孙荣恒.应用概率论[M].北京:科技出版社,1998:165-168.
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