Volume 9, Issue 1 (2009)
MJEE 2009, 9(1): 57-78 |
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عزمی پ, عباسیان فریدونی ج. Detection of the Number of Transmit Antenna and Modulation Type in MIMO Communication Systems with Space-Time Block Code. MJEE 2009; 9 (1) :57-78
URL: http://mjee.modares.ac.ir/article-17-4478-en.html
URL: http://mjee.modares.ac.ir/article-17-4478-en.html
1- دانشگاه تربیت مدرس
Abstract: (10299 Views)
In this paper, in order to detect the number of transmitting antenna in MIMO communication systems, it is proposed that the techniques such as AIC & MDL, which have been primarily designed so as to detect the number of Gaussian sources, are applied. Then a hypothesis testing based method for recognizing the type of modulation in MIMO communication systems with block orthogonal codes is suggested; in which in order to reduce the complexity of the traditional methods, simpler likelihood functions for testing hypotheses are applied. Furthermore, because in all modulation scheme detection methods, a proper estimation of channel gain (channel matrix) is required; in this paper, a new and efficient method based on SAGE iterative algorithm for estimation of channel matrix in MIMO communication system with space-time block codes is proposed. At the end of this paper, the performance and effectiveness of all proposed modules are separately and jointly analyzed by numerical simulations.
Keywords: Detection of The Number of Transmit Antenna, Modulation Recognition, MIMO Systems, Orthogonal Space-Time Block Codes, Channel Matrix Estimation, SAGE Algorithm
Received: 2007/10/24 | Accepted: 2008/10/30 | Published: 2010/03/9
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