TY - GEN
T1 - Performance comparison of MIMO CAP receivers in visible light communication
AU - Akande, Kabiru O.
AU - Offiong, Funmilayo B.
AU - Alrakah, Hussien
AU - Popoola, Wasiu O.
N1 - Funding Information: The authors will like to acknowledge the support of Edinburgh University International Research and Partnership Fund.
PY - 2018/9/24
Y1 - 2018/9/24
N2 - Multiple-input, multiple-output (MIMO) techniques have recently been proposed to improve the spectral efficiency of the conventional carrierless amplitude and phase (CAP) modulation scheme while maintaining its implementation simplicity in visible light communication (VLC). The proposed MIMO CAP uses the optimum Maximum Likelihood (ML) detection scheme which has high computational complexity. As a result, four practical, low-complexity detection schemes are investigated for MIMO CAP in this work and their performances are compared with that of ML. It is found that the minimum mean square error detection with optimally-ordered successive interference cancellation (MMSE-OSIC) offers the best choice between complexity and bit-error rate (BER) performance. To achieve a spectral efficiency of 8 bits/s/Hz at BER of 10-4 in a 4 × 8 MIMO CAP system, the signal-to-noise ratio (SNR) requirement of the MMSE-OSIC is 5 dB higher than that of the optimum ML receiver. However, the ML receiver's complexity is an order of magnitude higher than that of the MMSE-OSIC.
AB - Multiple-input, multiple-output (MIMO) techniques have recently been proposed to improve the spectral efficiency of the conventional carrierless amplitude and phase (CAP) modulation scheme while maintaining its implementation simplicity in visible light communication (VLC). The proposed MIMO CAP uses the optimum Maximum Likelihood (ML) detection scheme which has high computational complexity. As a result, four practical, low-complexity detection schemes are investigated for MIMO CAP in this work and their performances are compared with that of ML. It is found that the minimum mean square error detection with optimally-ordered successive interference cancellation (MMSE-OSIC) offers the best choice between complexity and bit-error rate (BER) performance. To achieve a spectral efficiency of 8 bits/s/Hz at BER of 10-4 in a 4 × 8 MIMO CAP system, the signal-to-noise ratio (SNR) requirement of the MMSE-OSIC is 5 dB higher than that of the optimum ML receiver. However, the ML receiver's complexity is an order of magnitude higher than that of the MMSE-OSIC.
KW - carrierless amplitude and phase modulation (CAP)
KW - MIMO
KW - optical communication
KW - spatial multiplexing (SM)
KW - visible light communication (VLC)
U2 - 10.1109/CSNDSP.2018.8471813
DO - 10.1109/CSNDSP.2018.8471813
M3 - Conference contribution
AN - SCOPUS:85055571512
T3 - 2018 11th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2018
BT - 2018 11th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2018
Y2 - 18 July 2018 through 20 July 2018
ER -