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This paper analyzes signaling traffic generated by IP Multimedia Subsystem (IMS) when deployed within a hybrid WLAN IEEE 802.11 and CDMA2000 networks to provide wireless and broadband services to users. IMS provides a services infrastructure to 3G networks and beyond and delivers the capability to maintain sessions among calling parties. IMS is under varying degrees of trials and deployment. Service...
IP spoofing has been exploited by Distributed Denial of Service (DDoS) attacks to conceal flooding sources and localities in flooding traffic, and prevent legitimate hosts into becoming reflectors, redirecting and amplifying flooding traffic. Thus, the ability to filter spoofed IP packets near victims is essential to their own protection as well as to their avoidance of becoming congestion and involuntary...
Applications that process large volumes of data (such as, search engines, grid computing applications, data mining applications, etc.) require a backend infrastructure for storing data. The distributed file system is the central component for storing data infrastructure. There have been many projects focused on network computing that have designed and implemented distributed file systems with a variety...
This paper analyzes the complexity of IP multimedia subsystems (IMS) proposed by 3GPP/3GPP2. Using two different mobility models, the paper provides a methodology to determine the number of accesses to the IMS servers. The analysis considers mobility of users across registration areas, which generates IMS registration requests as well as signaling to IMS servers due to service requests initiated by...
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