TY - GEN
T1 - MMSE interference rejection followed by joint maximum likelihood detection for distributed antenna network
AU - Miyagi, Hirokazu
AU - Sanada, Yukitoshi
N1 - Funding Information:
ACKNOWLEDGMENTS This work is supported in part by a Grant-in-Aid for Scientic Research (C) under Grant No.16K06366 from the Ministry of Education, Culture, Sport, Science, and Technology in Japan.
Publisher Copyright:
© 2017 University of Western Australia.
PY - 2018/2/27
Y1 - 2018/2/27
N2 - In this research minimum mean square error (MMSE) interference rejection is applied to a receiver in a distributed antenna networks (DAN). In the DAN, not only the desired signals, but also the interference signals may reach from nearby antennas. For the overloaded signal situation, non-linear detection schemes such as joint maximum likelihood detection can be applied to the received signals. However, the amount of metric calculations in the joint maximum likelihood detection (MLD) increases exponentially with the number of signal streams. Therefore, MMSE interference rejection followed by a MLD detection is proposed. The effect of residual interference after the MMSE interference rejection is evaluated. Numerical results obtained through computer simulation show that the performance of the proposed scheme is about 2.5 dB worse at a bit error rate (BER) of 10∼3 as compared with that of the joint MLD while the complexity reduces by a factor of 4 for QPSK signal streams. The BER performance degradation can be suppressed to about 1.0 dB by adjusting the value of the coefficient in the MMSE matrix.
AB - In this research minimum mean square error (MMSE) interference rejection is applied to a receiver in a distributed antenna networks (DAN). In the DAN, not only the desired signals, but also the interference signals may reach from nearby antennas. For the overloaded signal situation, non-linear detection schemes such as joint maximum likelihood detection can be applied to the received signals. However, the amount of metric calculations in the joint maximum likelihood detection (MLD) increases exponentially with the number of signal streams. Therefore, MMSE interference rejection followed by a MLD detection is proposed. The effect of residual interference after the MMSE interference rejection is evaluated. Numerical results obtained through computer simulation show that the performance of the proposed scheme is about 2.5 dB worse at a bit error rate (BER) of 10∼3 as compared with that of the joint MLD while the complexity reduces by a factor of 4 for QPSK signal streams. The BER performance degradation can be suppressed to about 1.0 dB by adjusting the value of the coefficient in the MMSE matrix.
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U2 - 10.23919/APCC.2017.8303957
DO - 10.23919/APCC.2017.8303957
M3 - Conference contribution
AN - SCOPUS:85050636943
T3 - 2017 23rd Asia-Pacific Conference on Communications: Bridging the Metropolitan and the Remote, APCC 2017
SP - 1
EP - 5
BT - 2017 23rd Asia-Pacific Conference on Communications
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 23rd Asia-Pacific Conference on Communications, APCC 2017
Y2 - 11 December 2017 through 13 December 2017
ER -