REVIEW ANALYSIS OF CONNECTING AD HOC NETWORK INTO INTERNET USING GATEWAY

Abstract

Different mechanisms have been proposed to integrate MANETs into the Internet. Most of them assume the presence of a dedicated entity acting as the Internet Gateway.  Multi-hop ad hoc networks get the flexibility to be integrated into the Internet in scenarios prepared for one-hop WLAN . The integration of MANETs into Internet increases the networking flexibility and coverage of existing infrastructure networks. Although researchers have proposed many solutions, but it is still unclear which one offer the best performance compared to the others. When an Ad Hoc network is connected to Internet, it is important for the mobile nodes to detect efficiently available Internet gateways providing access to the Internet. Internet gateway discovery time and handover delay have strong influence on packet delay and throughput. The key challenge in providing connectivity is to minimize the overhead of mobile IP and Ad Hoc routing protocol between Internet and Ad Hoc networks. There, this paper focuses on proposed technical solutions on Internet gateway discovery and also we briefly describe different ways to provide global Internet access for MANETs