论文摘要
许多无线技术,如今已规范化并且得到了很好的推广。同时,每个技术都有其不同的覆盖范围和带宽的限制。因此,为了便于资源共享,整合这些无线技术,使它们协同工作是很有必要的。由此可见,为了达到无所不在的高性能的无线通信,异构无线网络的互联,互通变得尤为重要。众所周知,每个技术都具有自己独立的安全架构,为了使得这些安全架构在网络融合的时候可以各适其责,各种安全技术之间的融合的架构问题,成为现在科技的一个很大的挑战。在这篇文章中,我们将讨论如何才能使得漫游的用户能够实现安全认证的问题,从某一个类型的无线通信协议,到另一种类型的无线通信协议,使得它们之间能够很好地融合。特别是当你必须从一个网络移动到另外一个网络,为了使得用户在继续保持通信,网络的融合变得尤为重要。切换出现在一个用户从一个服务覆盖地区切换到另外一个服务覆盖地区的时候,此时,必须建立新的连接,在新的连接建立完成之后,老的连接就必须要终止。在切换时,如果遇到服务区繁忙,可以把该用户切换到服务不是很繁忙的服务区或者接入点。本文的工作如下:本文讨论的传统方法在漫游的情况下,用来重新授权用户时的问题,以及多个独立节点的预先授权问题(MPA),阴影注册,最优化接入等问题。AN与面临的具有挑战性的问题。我们在工作中我们在接入一个网络时,需要先执行预先配置和预先验证到目标网络。在阴影注册法中,MN和每一个附近的AAA认证服务器连接时,就会有一种安全协助机制保证接入安全。当一个MN移入该区域时,注册已经完成,AAA认证机制只用在当地完成,而不需要到MN的当地完成。而另一传统方法是最佳优化的接入方法,在次方法中,只有在切换完成之后才能进行认证,但是它减小切换时延,但是由于缺乏强有力的验证过程,是比较容易被攻击的网络,所以此网络更适合信用杜高的人使用.在推荐的方法中,令牌环是用来完成一的EAP-令牌的验证方法,使用的EAP -令牌,将有利于未来的认证快的异构无线网络,特别对于常跨国界的旅游者来说,是更有优势的.用户可以首先连接到一个外国的主要运营商,该运营商与本国的运营网络可以互联,他确立一个路径,并且与其它的无线网络建立连接。在一个国家内,大多数的无线运营商都有一套完整的漫游协议
论文目录
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