naa a22 4500 510799019 CHVBK 20180411083347.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11277-013-1073-4 doi (NATIONALLICENCE)springer-10.1007/s11277-013-1073-4 Low-Complexity Butterfly Integration Structure for MMSE-SIC SISO Detector [Elektronische Daten] [Huan-Chun Wang, De-Jhen Huang, Hernan Leon, Jyh-Horng Wen] In this paper, we propose a low-complexity butterfly integration structure (LCBIS) for the minimum mean square error-soft interference cancellation (MMSE-SIC) soft-in soft-out (SISO) detector, which is widely used for MIMO systems. Unlike the conventional MMSE-SIC SISO detector which performs matrix inverse operations, the LCBIS performs butterfly integration operations with low complexity. To develop the LCBIS SISO detector, we derive an integral expression for the extrinsic information of the conventional MMSE-SIC SISO detector, and then propose a butterfly integration structure to compute the integral expression efficiently. Without matrix inverse operations, LCBIS significantly reduces the complexity of the MMSE-SIC SISO detector. In addition, simulation results show that LCBIS can offer much better BER than the other SISO detectors which do not perform matrix inverse operations. Springer Science+Business Media New York, 2013 MIMO nationallicence MMSE-SIC SISO detector nationallicence Butterfly integration structure nationallicence Low computational complexity nationallicence Wang Huan-Chun Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, Republic of China aut Huang De-Jhen Information and Communications Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan, Republic of China aut Leon Hernan Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, Republic of China aut Wen Jyh-Horng Department of Electrical Engineering, Tunghai University, Taichung, Taiwan, Republic of China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 72/2(2013-09-01), 1187-1202 0929-6212 72:2<1187 2013 72 11277 https://doi.org/10.1007/s11277-013-1073-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1073-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Huan-Chun Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, Republic of China aut NATIONALLICENCE 700 1- Huang De-Jhen Information and Communications Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan, Republic of China aut NATIONALLICENCE 700 1- Leon Hernan Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, Republic of China aut NATIONALLICENCE 700 1- Wen Jyh-Horng Department of Electrical Engineering, Tunghai University, Taichung, Taiwan, Republic of China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 72/2(2013-09-01), 1187-1202 0929-6212 72:2<1187 2013 72 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer