A STUDY ON SCALABLE HIGH- PERFORMANCE VIRUS
N. Raja Rajan, L. Dinesh · 2014
In proxy Generation Wireless Networks (NGWN), lots of information, such as voice and video data, will be used in All-IP networks. It is important to note that in such environments, seamless service for users and handoff between heterogeneous networks must be taken into account. Therefore, in this paper, we propose a SePH (Seamless Proxy based Handoff) using PMIPv6-based proxy model, which is able to improve the performance of handoff in NGWN. The SePH can efficiently support seamless and IP-based mobility, by reducing the search process. The performance results show that our proposed scheme outperforms in terms of Quality of Service (QoS), such as throughput, handoff latency, packet loss, and signaling overhead, comparing to the existing schemes. These performance measures are used in an optimization problem that is formulated to determine the optimal number and optimal location of proxy servers problem. Based on a comparison with a genetic algorithm, it can be concluded that algorithm produces near-optimal to optimal results in a very short time. Overview of the current web client web proxy - web server mechanism and takes a deep look into one of its main disadvantages: the replication, in the proxy's cache, of web objects having different URL but the same content. This problem is known as the Duplicate Transfer problem and is mainly caused by the current mode of indexing web objects based on their URL, which is used as a primary key in the cache repository. We present in this paper a statistical analysis based on real traffic measurements, which shows that more than 10% of a proxy's cache consists of replicated objects, grabbed from the Internet in a useless manner and stored redundantly at least twice. These results urge the development of a scalable real life solution to the duplicate transfer problem: some solutions have been previously