MIMO信道的空间相关特性及信道容量分析
doi: 10.3724/SP.J.1146.2005.01672
Space Correlation of MIMO Fading Channel and Its Channel Capacity Analysis
-
摘要: 该文针对非频率选择性MIMO衰落信道，建立接收阵列的三维(3D)信道模型，推导出关于空间距离矢量的空间相关函数表达式，并且仿真分析了空间距离矢量对电压相关系数的影响，分析了电压相关系数对信道容量的影响，仿真结果说明电压相关系数与信道容量呈反比关系。
-
关键词:
- MIMO信道;空间相关特性;信道容量
Abstract: Aiming at mobile frequency nonselective fading MIMO channels, this paper proposes the 3D statistical channels model and a new space function for receive antennas. The effects of space distance parameters on the correlation and capacity are given by computer simulation. The result of simulation shows the channel capacity in inverse proportion to the correlation. -
[1] Telatar I E. Capacity of multi-antenna Gaussian channels [J].European Trans. on Telecommun. Related Technol.1999, 10:585-595 [2] 李忻, 聂在平. MIMO信道中衰落信号的空域相关性评估[J]. 电子学报, 2004, 32(12): 1949-1953. Li Xin and Nie Zai-ping. Evaluating the spatial correlation of fading signals in MIMO channels. Acta Electronica Sinica, 2004, 32(12): 1949-1953. [3] Lee W C Y. Effect on correlation between two mobile base station antennas[J]. IEEE Trans. on Communications, 1973, COM-21(11): 1214-1224. [4] Abdi A and kaveh M. A space-time correlation model for multielement antenna systems in mobile fading channels [J].IEEE Journal on Selected Areas in Communication.2002, 20 (3):550-560 [5] Yong S K and Thompson J S. A three-dimensional spatial fading correlation model for uniform rectangular arrays [J].IEEE Antennas and Wireless Propagation Letters.2003, 2:182-185 [6] Yong S K and Thompson J S. Three-dimensional spatial fading correlation models for compact MIMO receivers [J].IEEE Transactions on Wireless Communications.2005, 4(6):2856-2869 [7] Abdi A and Kaveh M. A versatile spatio-temporal correlation function for mobile fading channels with non-isotropic scattering [A]. In: Proceedings of the Tenth IEEE Workshop on Statistical Signal and Array Processing. [C]. 2000: 58-62. [8] Taga T. Analysis for mean effective gain of mobile antennas [9] in land mobile radio environments [J]. IEEE Trans[J].on Vehicular Technology.1990, 39(2):117-131 [10] 沈永欢等. 实用数学手册 [M]. 北京: 科学出版社, 2000年, 第一、七、十七章. [11] Foschini G J and Gans M J. On limits of wireless communications in a fading envionment when using mutiple antennas [J]. Wireless Personal Communiction, 1998, 6(3): 331-335. -
计量
- 文章访问数: 4339
- HTML全文浏览量: 116
- PDF下载量: 2610
- 被引次数: 0
下载:
