?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=A+New+Extrapolation+Solution+for+MU-MISO+Symbol-Level+Precoding&rft.creator=Liang%2C+M&rft.creator=Li%2C+A&rft.creator=Hu%2C+X&rft.creator=Masouros%2C+C&rft.description=Constructive+interference+(CI)+precoding%2C+which+converts+the+harmful+multi-user+interference+into+beneficial+signals%2C+is+a+promising+and+efficient+interference+management+scheme+in+multi-antenna+communication+systems.+However%2C+CI-based+symbol-level+precoding+(SLP)+experiences+high+computational+complexity+as+the+number+of+symbol+slots+increases+within+a+transmission+block%2C+rendering+it+unaffordable+in+practical+communication+systems.+In+this+paper%2C+we+propose+a+symbol-level+extrapolation+(SLE)+strategy+to+extrapolate+the+precoding+matrix+by+leveraging+the+relationship+between+different+symbol+slots+within+in+a+transmission+block%2C+during+which+the+channel+state+information+(CSI)+remains+constant%2C+where+we+design+a+closed-form+iterative+algorithm+based+on+SLE+both+for+PSK+and+QAM+modulation.+In+order+to+further+reduce+the+computational+complexity%2C+a+sub-optimal+closed-form+solution+based+on+SLE+is+further+developed.+Extensive+simulation+results+illustrate+that+the+proposed+algorithms+can+dramatically+reduce+the+computational+complexity+and+time+complexity+with+only+marginal+performance+loss%2C+compared+with+the+conventional+SLP+design+methods.&rft.subject=Wireless+communication%2C+Phase+shift+keying%2C+Extrapolation%2C%0D%0AQuadrature+amplitude+modulation%2C+Precoding%2C+Simulation%2C%0D%0ASymbols%2C+Signal+processing+algorithms%2C+Modulation%2C+Interference&rft.publisher=IEEE&rft.date=2025-01-14&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A++2024+16th+International+Conference+on+Wireless+Communications+and+Signal+Processing+(WCSP).++(pp.+pp.+199-204).++IEEE%3A+Hefei%2C+China.+(2025)+++++&rft.format=application%2Fpdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10206019%2F1%2Fm38225-liang%2520paper.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10206019%2F&rft.rights=open