An analytical model for millimeter wave outdoor directional non-line-of-sight channels
An analytical model for millimeter wave outdoor directional non-line-of-sight channels
复制标题
毫米波室外定向非视距信道分析模型
DOI：
10.1109/icc.2017.7996790
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
D. Sen
中科院分区：
文献类型：
--
作者：
R. Rakesh;G. Das;D. Sen
利用定向天线的毫米波（mmWave）通信能够支持跨越室内短距离到室外蜂窝场景的多gbps数据速率。然而，由于毫米波信道具有高路损、穿透损耗和稀疏多路特性等独特的信道特性，需要采用新的信道模型进行毫米波网络设计。本文提出了一种新的基于几何的室外定向非视距毫米波信道模型。通过用建筑物的一阶反射近似信号传播，得到了一个更易于处理的NLOS平均接收信号功率的解析表达式。此外，对不同输入参数（如建筑密度、天线波束宽度等）进行了穷举仿真，验证了模型的准确性。
Millimeter wave (mmWave) communications utilizing directional antennas are capable to support multi-Gbps data rate spanning indoor short range to outdoor cellular scenarios. However, unique channel characteristics of mmWave channels including high pathloss, penetration loss and sparse multi-path characteristics requires new channel models for mmWave network design. In this paper, a novel geometry based model is introduced for outdoor directional non-line-of-sight (NLOS) mmWave channels. By approximating signal propagation with first order reflections from buildings, a more tractable analytical expression for average NLOS received signal power is obtained. Further, the accuracy of the model is tested using exhaustive simulations for different input parameters such as building density, antenna beamwidth etc.