ارسال امن تصویر پزشکی با استفاده از رله مشارکتی و مبتنی بر امنیت لایه فیزیکی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 1. استادیار، دانشکده مهندسی برق و کامپیوتر، دانشگاه صنعتی قم، قم، ایران. رایانامه: kuhestani@qut.ac.ir

2 دانشجوی دکتری مخابرات سیستم، دانشکده فنی و مهندسی، دانشگاه شاهد، تهران، ایران. رایانامه: sma.sebtonabi1373@yahoo.com

3 استادیار، دانشکده مهندسی برق و کامپیوتر، دانشگاه صنعتی قم، قم، ایران. رایانامه: rajabi@qut.ac.ir

4 4. استادیار، پژوهشکده فناوری ارتباطات، پژوهشگاه ارتباطات و فناوری اطلاعات، تهران، ایران. رایانامه: mrkeshavarzi@qut.ac.ir

چکیده

در این مقاله، ایده و روش جدیدی مبتنی بر رله مشارکتی جهت حفاظت اطلاعات تصویر از دسترسی کاربر غیر قانونی، پیشنهاد و بررسی گردیده است. با توجه به اینکه در تصاویر پزشکی، بیشتر تاکید متخصصان روی بخشی از تصویر است که بیماری را نشان می‌‎دهد، در این مقاله، ابتدا تصویر به دو بخش اصلی و پس زمینه تقسیم می‌شود و سپس فرستنده با تخمین ظرفیت محرمانگی کانال‌های قانونی و غیر قانونی نسبت به ارسال بخش اصلی و یا بخش پس زمینه تصمیم گیری کرد. هرگاه ظرفیت کانال قانونی از ظرفیت کانال شنودگر بیشتر بود، بخش اصلی تصویر و هرگاه ظرفیت کانال شنودگر از کانال قانونی بیشتر بود بخش پس زمینه ارسال گردید. ضمناً در این مقاله، به دلیل وجود فاصله بین فرستنده و گیرنده و اثر تلف مسیر، از ارسال مبتنی رله تقویت و ارسال برای مخابره اطلاعات استفاده می‌شود. نتایج شبیه‌سازی نیز نشان‌گر موثر و مفید بودن این ایده برای جلوگیری از شنود اطلاعات توسط کاربران غیر قانونی می‌باشند.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Secure medical image transmission for healthcare applications using cooperative relaying based on physical layer security

نویسندگان [English]

  • Ali Kuhestani 1
  • Mohammad Ali Sebtonabi 2
  • Roozbeh Rajabi 3
  • Mohammadreza Keshavarzi 4
1 Assistant Professor of Telecommunication Engineering at Qom University of Technology, Email: kuhestani@qut.ac.ir
2 2. Ph.D. Student of Telecommunication Engineering at Shahed University. Email: sma.sebtonabi1373@yahoo.com
3 Assistant Professor of Telecommunication Engineering at Qom University of Technology, Email: rajabi@qut.ac.ir
4 ICT Research Institute, Iran Telecommunication Research Center (ITRC), Tehran, Iran, Email: mrkeshavarzi@itrc.ac.ir
چکیده [English]

In this article, a new idea and method to protect image against illegal users has been proposed. Considering that in medical images, most of the experts' emphasis is on the part of the image that shows the disease, in this article, the image is first divided into two parts namely, main and background parts, and then the transmitter estimats regarding the capacity of legal and non-legal channels. Here, the transmitter decides whether to send the main part or the background part, i.e., when the capacity of the legal channel is greater than the capacity of the eavesdropping channel, the main part of the image is sent, and when the capacity of the eavesdropping channel is greater than the legal channel, the background part is sent. In addition, in this article, due to the large distance between the transmitter and the receiver and the effect of the path loss, a relay is adopted to boost the signal. Simulation results are provided to highlight the effectiveness of our proposed cooperative relaying idea.

کلیدواژه‌ها [English]

  • Secure image transmission
  • relay
  • secrecy capacity

مراجع

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