Capacity Loss From Localization Error in MIMO Channel Using Leaky Coaxial Cable
Capacity Loss From Localization Error in MIMO Channel Using Leaky Coaxial Cable
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DOI：
10.1109/access.2021.3053034
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发表时间：
2021-01-01
期刊：
影响因子：
3.9
通讯作者：
Denno, Satoshi
中科院分区：
文献类型：
--
作者：
Zhu, Junjie;Hou, Yafei;Denno, Satoshi
漏泄同轴（LCX）电缆已被用作许多线性小区场景（如火车站、隧道和购物中心）上的无线业务的天线。此外，LCX还可用于用户定位和无线电力传输（WPT）。与等功率分配方法相比，利用位置信息的LCX系统功率分配方法在计算复杂度相同的情况下，可以提高系统的容量。在本文中，我们将调查的2.4 GHz和5 GHz频段上的容量损失的水平，传统的等功率（EP）分配方法，注水（WF）的功率分配，我们提出的低复杂度的功率分配方法与PI LCX系统。结果表明，LCX系统与我们提出的方法使用PI可以减少由于定位误差比其他的容量损失。
Leaky coaxial (LCX) cable has been employed as antennas for wireless traffic over many linear-cell scenarios such as railway station, tunnels and shopping malls. In addition, LCX can be used for user localization and wireless power transfer (WPT). Compared with the equal power allocation method, the power allocation method for LCX system using positional information (PI) can improve its capacity with the same level of computational complexity. In this paper, we will investigate the level of capacity loss on the 2.4 GHz and 5 GHz band for the conventional equal power (EP) allocation method, the water-filling (WF) based power allocation, and our proposed low-complexity power allocation method for LCX system with PI. The results show that LCX system with our proposed method using PI can reduce the capacity loss due to localization error than that of others.