?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Secure+ISAC+MIMO+Systems%3A+Exploiting+Interference+With+Bayesian+Cram%C3%A9r-Rao+Bound+Optimization&rft.creator=Su%2C+Nanchi&rft.creator=Liu%2C+Fan&rft.creator=Masouros%2C+Christos&rft.creator=Alexandropoulos%2C+George+C&rft.creator=Xiong%2C+Yifeng&rft.creator=Zhang%2C+Qinyu&rft.description=In+this+paper%2C+we+present+a+signaling+design+for+secure+integrated+sensing+and+communication+(ISAC)+systems+comprising+a+dual-functional+multi-input+multi-output+(MIMO)+base+station+(BS)+that+simultaneously+communicates+with+multiple+users+while+detecting+targets+present+in+their+vicinity%2C+which+are+regarded+as+potential+eavesdroppers.+In+particular%2C+assuming+that+the+distribution+of+each+parameter+to+be+estimated+is+known+%5Ctextit%7Ba+priori%7D%2C+we+focus+on+optimizing+the+targets'+sensing+performance.+To+this+end%2C+we+derive+and+minimize+the+Bayesian+Cram%C3%A9r-Rao+bound+(BCRB)%2C+while+ensuring+certain+communication+quality+of+service+(QoS)+by+exploiting+constructive+interference+(CI).+The+latter+scheme+enforces+that+the+received+signals+at+the+eavesdropping+targets+fall+into+the+destructive+region+of+the+signal+constellation%2C+to+deteriorate+their+decoding+probability%2C+thus+enhancing+the+ISAC's+system+physical-layer+security+(PLS)+capability.+To+tackle+the+nonconvexity+of+the+formulated+problem%2C+a+tailored+successive+convex+approximation+method+is+proposed+for+its+efficient+solution.+Our+extensive+numerical+results+verify+the+effectiveness+of+the+proposed+secure+ISAC+design+showing+that+the+proposed+algorithm+outperforms+block-level+precoding+techniques.&rft.subject=Integrated+sensing+and+communication%2C+physical+layer+security%2C+successive+convex+approximation%2C+Bayesian+Cramer-Rao+bound%2C+constructive+interference&rft.publisher=ArXiv&rft.date=2024-01-30&rft.type=Working+%2F+discussion+paper&rft.language=eng&rft.source=++++ArXiv%3A+Ithaca%2C+NY%2C+USA.+(2024)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10189676%2F1%2F2401.16778.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10189676%2F&rft.rights=open