An Approach to Fault- Tolerance And Fraud-Detection for Wireless Appliances In Mobile Communication Paper Presentation

It is estimated that the mobile communications industry loses several million customers per year due to fraud. Therefore, prevention and early detection of fraudulent activity is an important goal for network operators. It is clear that the additional security measures taken in GSM and in the future UMTS (Universal Mobile Telecommunications System) make these networks less vulnerable to fraud than the analogue networks. The use of sophisticated fraud detection techniques can assist in early detection of commercial frauds, and will also reduce the effects of technical frauds. Due to the rapid progress of wireless communication technology, there is a growing demand for accessing data by wireless systems .Mobility is one important characteristic of wireless systems .Each wireless user (mobile node) may change its location several times during the execution of its data service. To avoid interrupting the ongoing data session, The Internet Engineering Task Force (IETF) has defined Mobile IP as one which enables wireless users to maintain ongoing data sessions without interruption while changing locations.