An Enhanced Handover Scheme for Mobile Relays in LTE-A High-Speed Rail Networks
作者： Meng-Shiuan Pan , Tzu-Ming Lin , Wen-Tsuen Chen
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摘要: Recently, the mobile relay technique has been discussed to support communication services for Long-Term Evolution Advanced (LTE-A) high-speed rail networks. In network, there are several relays in a train. User equipment (UE) devices connect in-car instead of outside evolved NodeBs (eNBs). Mobile establish backhaul links with serving donor eNBs (DeNBs) and coordinate control data flows UE devices. Since train travels high speed, suffer from frequent handovers between DeNBs. We observe that defined handover procedures LTE-A specifications may incur message overhead lengthen time. this paper, we propose an enhanced scheme, which contains two procedures. The first procedure is measurement procedure, can accelerate when knows moving toward some neighbor second group in-network aggregate similar network core network. Performance evaluations indicate our design conserve both time messages handover.
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