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- W2480592112 abstract "The authors have been researching large capacity transmission technology using a 4×4 multiple-input multiple-output (MIMO) system to develop Super Hi-Vision (SHV) wireless cameras. As the number of transmitting antennas increases, such as in a 4×4 MIMO system, the complexity of signal detection by maximum likelihood detection (MLD), which is the best technique to achieve a low bit error rate (BER), increases exponentially. To solve this difficulty, we have proposed a complexity-reduced MLD using block QR decomposition. In this report, we described our development of an experimental system of a 4×4 MIMO-quadrature phase shift keying (MIMO-QPSK) demodulator using our technique and evaluated the effectiveness of complexity reduction and the BER. The results showed that the proposed MLD reduces multiplications to 54 % and additions-subtractions to 56 % compared with those of the conventional MLD, while the loss of required C/N due to hardware implementation was suppressed less than 1 dB." @default.
- W2480592112 created "2016-08-23" @default.
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- W2480592112 date "2016-06-01" @default.
- W2480592112 modified "2023-09-26" @default.
- W2480592112 title "Development of 4×4 MIMO-QPSK demodulator using complexity-reduced MLD with block QR decomposition" @default.
- W2480592112 cites W1964363036 @default.
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- W2480592112 doi "https://doi.org/10.1109/bmsb.2016.7521928" @default.
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