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A secure, efficient, and cost-effective distributed architecture for spam mitigation on LTE 4G mobile networks

机译：一种安全，高效且经济高效的分布式架构，可减轻LTE 4G移动网络上的垃圾邮件

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摘要

The 4G of mobile networks will be a technology-opportunistic and user-centric system, combining the economical and technological advantages of various transmission technologies. As a part of its new architecture, LTE networks will implement an evolved packet core. Although this will provide various critical advantages, it will, on the other hand, expose telecom networks to serious IP-based attacks. One often adopted solution to mitigate such attacks is based on a centralized security architecture. However, this approach requires large processing and memory resources to handle huge amounts of traffic, which, in turn, causes a significant over dimensioning problem in the centralized nodes. Hence, it may cause this approach to fail from achieving its security task. In this paper, we focus on a SPAM flooding attack, namely SMTP SPAM, and demonstrate, through simulations and discussion, its DoS impact on the Long Term Evolution (LTE) network and subsequent effects on the mobile network operator. Our main contribution involves proposing a distributed architecture on the LTE network that is secure and that mitigates attacks efficiently by solving the over dimensioning problem. It is also cost-effective by utilizing ‘off-the-shelf’ low-cost hardware in the distributed nodes. Through additional simulation and analysis, we demonstrate the feasibility and effectiveness of our approach. Copyright © 2012 John Wiley & Sons, Ltd.
机译：移动网络的4G将是一个技术机会主义和以用户为中心的系统，结合了各种传输技术的经济和技术优势。作为其新架构的一部分，LTE网络将实现演进的分组核心。尽管这将提供各种关键的优势，但另一方面，它将使电信网络遭受基于IP的严重攻击。缓解此类攻击的一种常用解决方案是基于集中式安全体系结构。但是，这种方法需要大量的处理和内存资源来处理大量流量，这又在集中式节点中引起了严重的尺寸过大问题。因此，这可能导致此方法无法完成其安全任务。在本文中，我们将重点放在SPAM泛洪攻击（即SMTP SPAM）上，并通过模拟和讨论展示其DoS对长期演进（LTE）网络的影响以及对移动网络运营商的后续影响。我们的主要贡献涉及在LTE网络上提出一种分布式架构，该架构安全且可通过解决尺寸过大问题来有效缓解攻击。通过在分布式节点中使用“现成的”低成本硬件，它也具有成本效益。通过其他仿真和分析，我们证明了该方法的可行性和有效性。版权所有©2012 John Wiley＆Sons，Ltd.

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