A Seamless Handover scheme for wireless Network using SIGMA

Vol.4 No.3

Year: 2010

Issue: January - March

Title: A Seamless Handover scheme for wireless Network using SIGMA   

Author Name: B. Jaiganesh, R. Ramachandran   

Synopsis:   

Wireless etworks ecome more widely used to support advanced services. A researcher has been interested in having Internet connectivity in space for quite some time. This would allow scientists with direct Internet access to data and  devices on the satellites. The rotation of Low Earth Orbiting (LEO)  satellites around the Earth result in handover  of satellites  between  ground  stations. Two types of handover can be observed in space: Link layer and Network layer. Researchers have been developing a Seamless IP diversity-based Generalized Mobility Architecture (SIGMA) to ensure smooth handovers of end to end connections between nodes on Earth and satellites. In this paper, we provide a survey of  the various types of handovers in the space environment, followed by simulation results of SIGMA handover performance in a space environment.