简介:Tokeepthesecrecyperformancefrombeingbadlyinfluencedbyuntrustedrelay(UR),amulti-URnetworkthroughamplify-and-forward(AF)cooperativeschemeisputforward,whichtakesrelayweightandharmfulfactorintoaccount.Anonzero-sumgameisestablishedtocapturetheinteractionamongURsanddetectionstrategies.Secrecycapacityisinvestigatedasgamepayofftoindicatetheuntrustedbehaviorsoftherelays.Themaximumprobabilitiesofthebehaviorsofrelayandtheoptimalsystemdetectionstrategycanbeobtainedbyusingtheproposedalgorithm.