?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Interference+Exploitation+Based+Secure+Transmission+for+Distributed+Antenna+Systems&rft.creator=Wei%2C+Z&rft.creator=Masouros%2C+C&rft.creator=Liu%2C+F&rft.description=Distributed+antenna+(DA)+is+considered+as+a+strong+alternative+to+conventional+centralized+multiple-input+multiple-output+(MIMO)%2C+to+provide+a+greener+and+user-centric+network+structure.+However%2C+physical+layer+(PHY)+security+becomes+more+challenging+in+DA+systems+because+of+the+proximity+to+the+transmitters.+In+this+paper%2C+we+jointly+optimize+DA+activation%2Fdeactivation+and+secure+precoding+to+minimize+the+total+power+consumption%2C+subjected+to+legitimate+user's+(LU)+quality-of-service+(QoS)+and+PHY+security+constraints+against+potential+eavesdroppers+(Eves).+A+practical+scenario+is+considered%2C+where+channel+state+information+(CSI)+of+all+the+nodes+can+only+be+imperfectly+obtained.+In+the+presence+of+infinite+probabilities+of+CSI+uncertainties%2C+a+deterministic+robust+based+algorithm+is+designed+to+always+satisfy+LU's+QoS+requirement+and+address+PHY+security+constraints+against+Eves.+Moreover%2C+essentially+different+from+existing+artificial+noise+(AN)-aided+secure+transmission+schemes%2C+where+AN'+leakage+effect+at+LU+needs+to+be+suppressed%2C+we+utilize+AN+as+a+beneficial+element+at+LU+end+while+keeping+it+destructive+at+potential+Eves.+Simulation+results+verify+that%2C+the+proposed+algorithm+incurs+much+lower+power+consumption+compared+to+its+benchmarks%2C+thanks+to+the+additional+degrees+of+freedom+of+antenna+selection+and+utilizing+constructive+AN.+Last+but+not+least%2C+by+adaptively+facilitating+DA+activation%2Fdeactivation%2C+the+proposed+algorithm+addresses+a+user-centric+network+structure%2C+which+is+more+flexible+over+the+conventional+centralized+MIMO+systems.&rft.subject=Instruments%0D%0A%2C%0D%0ASecurity%0D%0A%2C%0D%0AIEEE+Standards%0D%0A%2C%0D%0ARegisters%0D%0A%2C%0D%0ASystem-on-chip%0D%0A%2C%0D%0AClocks%0D%0A%2C%0D%0AComplexity+theory&rft.publisher=IEEE&rft.date=2019-05-20&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A+++(Proceedings)+ICC+2019+-+2019+IEEE+International+Conference+on+Communications+(ICC).+++IEEE%3A+Shanghai%2C+China.+(2019)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10081092%2F1%2F1570504328%25282%2529.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10081092%2F&rft.rights=open