اخبار و اعلانات
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| تعداد نشریات | 34 |
| تعداد شماره‌ها | 1,289 |
| تعداد مقالات | 9,294 |
| تعداد مشاهده مقاله | 8,799,349 |
| تعداد دریافت فایل اصل مقاله | 5,339,197 |
بهبود امنیت یک ارتباط بی‌سیم مبتنی بر مخابره‌ی پنهان در حضور نویز کنترل شده با استفاده از پرتو چندگانه | ||
| پدافند الکترونیکی و سایبری | ||
| مقاله 2، دوره 10، شماره 1 - شماره پیاپی 37، خرداد 1401، صفحه 11-19 اصل مقاله (1.24 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| فرید صمصامی خداداد* 1؛ سیده فاطمه آذرنگ2؛ مسلم فروزش3؛ سید محمد جواد عسگری طباطبائی4 | ||
| 1استادیار، دانشگاه تخصصی فناوری های نوین آمل، آمل، ایران | ||
| 2کارشناسی ارشد، دانشکده مهندسی فناوری های نوین، دانشگاه تخصصی فناوی‌های نوین آمل، آمل، ایران | ||
| 3استاد، دانشگاه تربیت مدرس، تهران، ایران | ||
| 4استادیار، دانشگاه تربت حیدریه، تربت حیدریه،ایران | ||
| تاریخ دریافت: 26 اسفند 1399، تاریخ بازنگری: 29 بهمن 1400، تاریخ پذیرش: 22 دی 1400 | ||
| چکیده | ||
| در ارتباطات بی سیم حفظ امنیت و نرخ بیت ارسالی بسیار حائز اهمیت می‌باشد. با این حال در شبکه‌های متداول، مخابره پنهان اغلب دارای نرخ بیت محدود است؛ چراکه به دلیل حفظ امنیت در مخابره پنهان، باید سیگنال داده را درون نویز پایه‌ای مخفی نمود. در این مقاله، به ارائه طرحی به منظور حفظ امنیت و افزایش نرخ بیت در مخابره پنهان پرداخته شده است. اساس روش پیشنهادی، ارسال نویز کنترل شونده برای افزایش احتمال خطای تشخیص در شنودگر و افزایش نرخ پنهان در گیرنده‌ی مجاز است. در طرح پیشنهاد شده از روش شکل‌دهی پرتو برای افزایش نرخ پنهان و کاهش تداخل در گیرنده مجاز بهره گرفته شده است. در نهایت برای ارزیابی این طرح، یک مسئله بهینه‌سازی فرمول‌بندی می‌شود و یک الگوریتم تکراری برای حل آن ارائه داده می‌شود. شبیه‌سازی و نتایج عددی متنوع صحت ادعا را در توانایی روش ارائه شده در امنیت شبکه‌های مخابراتی بی‌سیم مبتنی بر مخابره پنهان با استفاده از پارازیت‌سازی را نشان می‌دهند. | ||
| کلیدواژه‌ها | ||
| امنیت لایه‌ی فیزیکی؛ مخابره پنهان؛ نویز کنترل‌شده | ||
| عنوان مقاله [English] | ||
| Improving security of wireless telecommunication networks based on covert communication in presence of a controlled noise using multiple beamforming | ||
| نویسندگان [English] | ||
| Farid Samsami Khodadad1؛ Fatemeh Azarang2؛ Moslem forouzesh3؛ Seyyed Mohammad Javad Asgari Tabatabaee4 | ||
| 1Assistant Professor, Amol Specialized University of New Technologies, Amol, Iran | ||
| 2Master's degree, New Technologies Engineering Faculty, Amol University of New Technologies, Amol, Iran | ||
| 3Professor, Tarbiat Modares University, Tehran, Iran | ||
| 4Assistant Professor, Torbet Heydarieh University, Torbet Heydarieh, Iran | ||
| چکیده [English] | ||
| In Wireless Telecommunication, maintaining the security and the transmitted bit rate are very important. However, in conventional networks, covert communication is often the transmitted bit rate very limited. This may be for maintaining the security in covert communication in the sense that the data signal must be covert inside the base noise. In this article, we present different plans to maintaining the security and increase the transmitted bit rate in covert communication. The basis of the proposed method is transmitting controlled noise signal to increase the probability of detection error in the eavesdropper and increase the covert rate in the legal receiver to send the main message to the legal receiver. In the proposed method, also, the beam forming technique is presented and applied to increase the covert rate and reduce the interference in the receiver. To evaluate this scheme, an optimization problem is formulated. Various simulations and numerical results proves the efficiency of our proposal in its ability to increase security in telecommunications networks based on covert communication via controlled noise. | ||
| کلیدواژه‌ها [English] | ||
| Physical layer security, Covert communication, controlled noise | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 1,055 تعداد دریافت فایل اصل مقاله: 409 |
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