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صفحه اصلی
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سی و دومین کنفرانس بین المللی مهندسی برق
Covert Communication and Secure Transmission in the Presence of Multiple Antenna Untrusted Relay
نویسندگان :
Mohammad Reza Yari
1
Paeiz Azmi
2
Mahyar Ghasedi
3
Moslem Forouzesh
4
Hamid Saeedi
5
1- دانشگاه تربیت مدرس تهران
2- دانشگاه تربیت مدرس تهران
3- دانشگاه تربیت مدرس تهران
4- دانشگاه تخصصی فناوری های نوین آمل
5- University of Doha for Science and Technology
کلمات کلیدی :
covert communication،information-theoretical security،multiple antenna untrusted relay،NSGAII
چکیده :
In this study, we investigate information-theoretical security and covert communication. In covert communication, our aim is communication via the source-relay-destination link, without noticing the existence of communication by the multiple antenna warden. For secure transmission, our aim is to prevent possible eavesdropping by multiple antenna untrusted relay. To satisfy these requirements, we proposed a cooperative jamming strategy in two phases of transmission. In the proposed scheme, the source has multiple antenna and the efficiency of the maximum-ratio transmission/maximum-ratio combining (MRT/MRC) method for sending data to the relay has been evaluated. Due to the total transmit power restriction in each phase, a constrained optimization problem is formulated. Then, it is solved by converting to a multi-objective optimization problem. Finally, we employ the non-dominated sorting genetic algorithm II (NSGAII) to solve it
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