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首页> 外文期刊>Eurasip Journal on Wireless Communications and Networking >A Cost-Based Adaptive Handover Hysteresis Scheme to Minimize the Handover Failure Rate in 3GPP LTE System
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A Cost-Based Adaptive Handover Hysteresis Scheme to Minimize the Handover Failure Rate in 3GPP LTE System

机译：一种基于成本的自适应切换滞后方案，可最大程度地降低3GPP LTE系统中的切换失败率

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摘要

We deal with a cost-based adaptive handover hysteresis scheme for the horizontal handover decision strategies, as one of the self-optimization techniques that can minimize the handover failure rate (HFR) in the 3rd generation partnership project (3GPP) long-term evolution (LTE) system based on the network-controlled hard handover. Especially, for real-time operation, we propose an adaptive hysteresis scheme with a simplified cost function considering some dominant factors closely related to HFR performance such as the load difference between the target and serving cells, the velocity of user equipment (UE), and the service type. With the proposed scheme, a proper hysteresis value based on the dominant factors is easily obtained, so that the handover parameter optimization for minimizing the HFR can be effectively achieved. Simulation results show that the proposed scheme can support better HFR performance than the conventional schemes.
机译：我们针对水平切换决策策略处理基于成本的自适应切换滞后方案，这是一种自优化技术，可以使第三代合作伙伴计划（3GPP）长期演进中的切换失败率（HFR）最小化（ LTE）系统基于网络控制的硬切换。特别是对于实时操作，考虑到一些与HFR性能密切相关的主要因素，例如目标与服务小区之间的负载差异，用户设备的速度以及服务类型。利用所提出的方案，容易地获得基于主导因素的适当的磁滞值，从而可以有效地实现最小化HFR的切换参数优化。仿真结果表明，与传统方案相比，该方案可以支持更好的HFR性能。

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