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Seamless Handover for Integrated LTE Macrocell- Femtocell

Femtocells offer many advantages in wireless networks such as improved cell capacity and coverage in indoor and fringe areas. To achieve fair and efficient resource utilization between cross-tier users, hybrid access mode is proposed which enables femtocell owners to share resources with macrocell users (MUs). It enhances the system performance and increases the system capacity as it allows the macrocell to serve more users. When a macrocell user moves to a femtocell, system information (SI) acquisition is an essential process for handover. A fast handover scheme with low latency is required for LTE femtocell networks to support seamless handovers. To mitigate the latency and interruption time, in this paper, a Reference Signal Received Power (RSRP) based handoff scheme is proposed which uses Parallel System Information Acquisition Scheme (PSIA). Simulation results show that the proposed scheme offers better performance than the conventional scheme while reducing unnecessary handovers.