异构网中移动鲁棒性优化技术仿真研究

[摘要] 文章通过大量的仿真验证找出异构网场景中具体的移动鲁棒性问题，进而有针对性地给出解决方案。仿真中通过同构网和异构网场景中的移动鲁棒性性能比较，发现异构网场景中移动性参数应根据切换的对象不同，进行相应的参数匹配；仿真中通过异构网场景中设置不同的参数配置发现，在选择合适的移动性参数时应综合考虑移动鲁棒性性能和系统开销。

[关键词] 异构网；移动鲁棒性；移动性参数；切换；无线链路失败

[Abstract] In this paper, we run a large number of simulations to find problems with detailed mobility robustness in heterogeneous networks. We also provide solutions to such problems. After comparing mobility robustness in a heterogeneous network with that in a homogeneous network, we found that the mobility parameters in a heterogeneous network should be selected according to different switching targets. By setting different mobility parameters in heterogeneous network simulation, we found that the trade-off between mobility robustness and system overheard should be taken into account.

[Keywords] heterogeneous network; mobility robustness; mobility parameter; handover; radio link failure