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Interference Management for Co-channel Mobile Femtocells Technology in LTE Networks

机译:LTE网络中共信道移动毫微微小区技术的干扰管理

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摘要

The dense deployment of Femtocells within the Macrocell's coverage is expected to dominate the future of Long Term Evolution (LTE) networks. While Mobile Femtocells (Mobile-Femtos) could be the solution for vehicular networks when there is a need to improve the vehicular User Equipment (UE) performance by mitigating the impact of penetration loss and path-loss issues. The deployed Femtocells have operated in a co-channel deployment due to the scarcity of spectrums. This issue causes interference between Femtocells and Macrocells as well it causes extra overhead on the LTE networks because of the co-tire interference between adjacent Femtocells. In this paper two interference scenarios are considered, the interference between Mobile-Femto and Macrocell, and the interference between the Mobile Femtos themselves. Therefore, to avoid the generated interference between Femtocells, the controlled transmission powers as well as the coverage planning techniques have been discussed. While in the worst-case scenarios, a frequency reuse scheme has been proposed to avoid the generated interference effectively and dynamically between the Mobile-Femtos as well as their UEs and between the Macrocell UEs.
机译:宏蜂窝覆盖范围内的毫微微蜂窝基站的密集部署预计将主导长期演进(LTE)网络的未来。当需要通过减轻渗透损耗和路径损耗问题的影响来提高车载用户设备(UE)性能时,移动毫微微小区(Mobile Femtos)可能是车载网络的解决方案。由于频谱稀缺,已部署的毫微微小区已经在同信道部署中运行。由于相邻毫微微小区之间的轮胎干扰,此问题会导致毫微微小区和宏小区之间的干扰,也会导致LTE网络上的额外开销。在本文中,考虑了两种干扰情形,即移动毫微微基站和宏蜂窝之间的干扰以及移动毫微微基站本身之间的干扰。因此,为了避免在毫微微小区之间产生干扰,已经讨论了受控的发射功率以及覆盖范围规划技术。尽管在最坏的情况下,已经提出了频率复用方案,以有效且动态地避免移动毫微微基站之间以及它们的UE之间以及宏小区UE之间所产生的干扰。

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