امنیت دگرسپاری در شبکه‎های LTE

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Abstract:

سیستم ارتباطی نسل چهارم مخابرات، مبتنی‎بر فناوری LTE می‎باشد. LTE تکامل‎یافته شبکه‎های دسترسی بسته‎ای با سرعت بالا (HSPA) است و با تحقق نرخ داده بالاتر، سازگاری بیشتر با شبکه‎های ناهمگن و معماری شبکه یکنواخت‎تر ارائه شده است. LTE از سری استاندارد‎های نسخه 8، 3GPP  است. یکی از اهداف LTE و هر سیستم بی‎سیمی، فراهم نمودن دگرسپاری یکپارچه و سریع از یک سلول (سلول منبع) به سلول دیگر (سلول مقصد) می‎باشد. با اینکه روندهای تعریف شده‎ی دگرسپاری LTE در نسخه 8 با پشتیبانی از تحرک ارائه شده‎اند، اما برای تمام حالت‎های تحرک مناسب نیستند و حتی در مقایسه با سیستم‎های نسل 2 و 3، ممکن است موجب نارضایتی کاربر  شوند. در این مقاله ابتدا معماری شبکه LTE و آسیب‎های موجود در آن مطرح شده است. سپس مفاهیم مرتبط با دگرسپاری در شبکه LTE و اقدامات اخیر در این حوزه بررسی شده است.

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Journal title

volume 4  issue 2

pages  37- 51

publication date 2016-03

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