Home Agent Placement Optimization for HAP-Based Network Mobility

High altitude platform (HAP) network is well suited to support mobile router on a vehicle, i.e. train, bus, ship or automobile. Mobile IP could provide transport layer connectivity in resource efficient way by employing route optimization mechanisms. In addition, careful selection of home agent location may significantly reduce network burden due to HAP wide coverage area and expected localized mobility. Placement optimization of mobile IP home agent entity in this particular access network is proposed and evaluated. Discontinuous line-of-sight (LOS) conditions were simulated. The optimization is most rewarding for communications that cannot bypass mobile router's home agent