امنیت دگرسپاری در شبکههای LTE
Authors
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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