Transmitting device for data modulated by space-time block code with MIMO and method thereof
A technology of space-time block coding and data transmission device, applied in the field of mobile communication, can solve the problems of limited coding gain, difficulty in ensuring low energy consumption transmitter requirements, etc., and achieve the effects of fast conversion speed, simple structure and small calculation amount
Inactive Publication Date: 2008-10-15
ZTE CORP
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[0005] However, the coding gain obtained by this method is limited, and it
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The invention discloses a sending method of data modulated and encoded by multi-input and multi-output space-time block and a data sending device applied to a data transmission system. The method comprises that M-TCM modulating and encoding are carried out to the data to be transmitted, wherein, M refers to the modulating quantity; after the diversity treatment of a constellation set according tothe square of the free distance between the maximum differences of minimum code words, the encoded and modulated data is mapped on a corresponding signal constellation diagram and then transmitted. The invention also discloses a sending device of data modulated and encoded by the multi-input and multi-output space-time block. The invention can obtain large encoding gains, and meanwhile, save the transmission power of a transmitter.
Description
technical field [0001] The present invention relates to the field of mobile communication, in particular to a data transmission device and method for MIMO (multiple-input multiple-output, multiple-input multiple-output) space-time block code concatenated multi-lattice coding modulation. Background technique [0002] In recent years, space-time coding has attracted much attention as an effective method to overcome and improve multipath fading and received signal performance in wireless communication environment. In the literature [A simple transmit diversity technique for wireless communications[J].IEEE J.Select.AreasCommun, 1998, 16(10): 1451-1458, Oct.], Alamouti proposed a space-time based on two transmitting antennas An encoding method that achieves the greatest possible diversity gain through a simple linear complexity maximum likelihood decoding algorithm. Thereafter, the method is extended to the case of any number of transmit antennas, and this kind of space-time cod...
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Login to view more IPC IPC(8): H04B7/02H04B7/04H04L1/06H04L1/00H04L27/20
CPCY02D30/70
Inventor 王衍文
Owner ZTE CORP
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