This letter proposes a higher order moments-based spectrum sensing method for detecting unauthorized accesses in underlay cognitive satellite communication networks. Exploiting the second, fourth and sixth-order moments of received signal, an estimate hidden signal power is evaluated. Then, estimation user used as decision variable to distinguish among presence or absence transmission within ne...

April 2012 Abstract A manufacturer will often limit competition among downstream partners by authorizing only a select group of retailers to carry its product. However, it is not uncommon for authorized retailers to create an additional competitor by diverting units to an unauthorized seller. Prior research proposes that this diversion will not be optimal unless the diverted units are sold in n...

In this study, we propose a new methodology to control how user’s data is recognized and used by AI via exploiting the properties of adversarial examples. For purpose, reversible example (RAE), type example. A remarkable feature RAE that image can be correctly model specified user because authorized recover original from exactly eliminating perturbation. On other hand, unauthorized models canno...

In today's world, the number of cyber attacks is increasing every year. These lead to massive loss confidential data, disruption critical infrastructure. The cyberattacks has only increased since beginning pandemic and carries with it significant financial reputational risks for any company. work considers possible methods testing security organization's corporate network against unauthorized p...

S u m m a r y N early 12 million unauthorized immigrants live in the United States. California is home to about 2.7 million of these immigrants, who make up almost 10 percent of the state's labor force. 1 Currently, legislators in Washington, D.C., are considering a comprehensive reform of federal immigration policies that could include the legalization of unauthorized immigrants. Many observer...