Handover Strategy in HIP-based LTE Femtocells Networks with Hybrid Access Mode

Apply HIP to Handover Procedures in Hybrid Access Mode LTE Femtocells

“…Femtocells suitable for applying HIP in mobility management because of indoor and small coverage area features. So past research use an idea that utilizes the HIP and MIH to implement the handoff management for femtocells environment [15]. In this paper, we discuss the handover decision strategy and handover procedures more detail in hybrid access mode femtocells.…”

Localization and mobility management in heterogeneous wireless networks with network-assistance

“…More complicated signaling procedures are also required to integrate the femtocellspecific processes into the HO execution phase, e.g., autonomous search, PCI resolution, and access control. The same implies when the deployed HO decision algorithm utilizes an enriched set of parameters that account for the target cells' status [60] [62] [71]. Current literature includes various studies for improving the wired and cellular backhaul under the viewpoint of femtocells [72]- [76].…”

“…Energy-efficiency is a critical issue for IMT-Advanced mobile devices, which are required to support multifarious user applications and a plethora of radio capabilities, e.g., carrier aggregation, multi-antenna and multi-interface transmissions. Some of the key energy-efficiency parameters in current literature are the UE battery power [60], the mean UE transmit power [66], and the UE power consumption [71].…”

“…The algorithm in [60] incorporates a wide range of parameters to reach the HO decision, mainly including the RSS of the serving and the target cells, the UE speed, the interference level at target femtocells, the bandwidth availability on the target cell, the UE membership status and the traffic type. The algorithm can be used to a) remain in the current serving cell, b) handover to the macrocell, or c) handover to a hybrid femtocell.…”

“…On the other hand, if the UE belongs to the CSG of the target femtocell, the algorithm performs an inbound HO by using a) absolute RSS and relative RSS with hysteresis margin, b) UE speed, c) traffic-type, and d) bandwidth-related criteria. The algorithm in [60] accounts for a wide range of HO decision criteria, which are expected to minimize the HO failure probability. However, the required signaling and delay overhead for commuting these parameters to the serving cell should be further investigated.…”