Informatics Publishing Limited

V. Kavidha ¹, S. Arun Mozhi Selvi ²

Affiliations
1 Department of Computer Science and Engineering, Dr.Sivanthi Aditanar College of Engineering, Tiruchendur-628 215, Tamil Nadu, IN
2 Department of Information Technology, Dr. Sivanthi Aditanar College of Engineering, Tiruchendur-628 215, Tamil Nadu, IN

Abstract

Internet Protocol based solutions accommodate mobile hosts within existing networks do not address the distinctive features of mobile computing. Internet protocol based transport protocols thus suffer from poor performance when a mobile host communicates with a host on the fixed network. This paper describe the design and implementation of Indirect Transmission Control Protocol (I-TCP), which is an indirect transport layer protocol for mobile hosts. I-TCP utilizes the resources of Mobility Support Routers (MSRs) to provide transport layer communication between mobile hosts and hosts on the fixed network. This paper also discuss the throughput performance of I-TCP in different wireless environment namely LAN and WAN. With I-TCP, the problems related to mobility and the unreliability of wireless link are handled entirely within the wireless link; the TCP/IP software on the fixed hosts is not modified. Using I-TCP on our test the throughput between a fixed host and a mobile host improved substantially in comparison to regular TCP and throughput performance can also increased compared with other Mobile TCP’s.

Keywords

Adhoc Networks, Mobile Hosts, Mobility Support Routers, TCP.

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S. Arun Mozhi Selvi ¹, R. S. Rajesh ²

Affiliations
1 Department of Information Technology, Dr. Sivanthi Aditanar College of Engineering, IN
2 Department of Computer Science and Engineering, Manonmaniam Sundaranar University, IN

Abstract

Spam is commonly defined as unsolicited email messages and the goal of spam categorization is to distinguish between spam and legitimate email messages. The economics of spam details that the spammer has to target several recipients with identical and similar email messages. As a result a dynamic knowledge sharing effective defense against a substantial fraction of spam has to be designed which can alternate the burdens of frequent training stand alone spam filter. A weighted email attribute based classification is proposed to mainly focus to encounter the issues in normal email system. These type of classification helps to formulate an effective utilization of our email system by combining the concepts of Bayesian Spam Filtering Algorithm, Iterative Dichotmiser 3(ID3) Algorithm and Bloom Filter. The details captured by the system are processed to track the original sender causing disturbances and prefer them to block further mails from them. We have tested the effectiveness of our scheme by collecting offline data from Yahoo mail&Gmail dumps. This proposal is implemented using .net and sample user-Id for knowledge base.

Keywords

Spam, Bayesian, IMAP, ID3.

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