Mobility

Area Based Mobility Management by Using GPS in LEO Satellite Networks

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Executive Summary

Though Low Earth Orbit (LEO) satellites have some distinct characteristics such as low propagation delay, low power requirements and more efficient spectrum allocation due to frequency reuse between satellite and spotbeams but the higher relative speed than terrestrial mobile networks decreases the quality of service as a result of a huge number of handovers. To overcome this problem a number of handover management schemes have been proposed out of which Mobile IP (MIP) is the standard one. But its mobility management cost is too high. Here the authors have proposed a low cost Area Based Mobility Management method (ABMM) using GPS and Paging for LEO satellite networks, which use GPS to decrease Paging cost and location update cost.

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