Mobility robustness optimization in self-organizing LTE femtocell networks
Mobility robustness optimization in self-organizing LTE femtocell networks
复制标题
自组织 LTE femtocell 网络中的移动鲁棒性优化
DOI：
10.1186/1687-1499-2013-27
复制
发表时间：
2013-02-12
影响因子：
2.6
通讯作者：
Wen, Xiangming
中科院分区：
文献类型：
--
作者：
Zheng, Wei;Zhang, Haijun;Wen, Xiangming
Femtocell is a promising solution for enhancing the indoor coverage and capacity in wireless networks. However, for the small size of femtocell and potentially frequent power on/off, existing handover schemes may not be reliable enough for femtocell networks. Moreover, improper handover parameters settings may lead to handover failures and unnecessary handovers, which make it necessary to enhance the mobility robustness for femtocells. In this article, we propose a gradient method and cost function-based mobility robustness optimization scheme for long term evolution (LTE) femtocell self-organizing networks. Moreover, signalling overhead of the scheme is analyzed. Simulation results show that the proposed scheme has a better performance than the fixed parameters method in terms of reduced the number of handover failures and unnecessary handovers with limited signalling modifications.
