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arXiv 1609.09696cs.ITmath.IT
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在$κ$-$μ$阴影衰落信道上操作的5G异构蜂窝系统的综合分析

A Comprehensive Analysis of 5G Heterogeneous Cellular Systems operating over $κ$-$μ$ Shadowed Fading Channels

Young Jin Chun, Simon L. Cotton, Harpreet S. Dhillon, F. Javier Lopez-Martinez, José F. Paris, Seong Ki Yoo

摘要:

新兴的蜂窝技术,例如那些被提议用于5G通信的技术,将适应具有不同链路要求的广泛使用场景。这将包括在从室内到室外,从视线(LOS)到非LOS,以及从圆对称散射到促进散射多径波的聚集的环境的多功能无线信道集合上操作的必要性。不幸的是,在文献中采用的许多传统的衰落模型,以开发网络模型缺乏灵活性,以考虑这种不同的信号传播机制。为了弥合理论和实际信道之间的差距,我们考虑$κ$-$μ$阴影衰落,其中包含作为特殊情况,在公开文献中提出的线性衰落模型,包括瑞利,Rician,Nakagami-m,Nakagami-q,单侧高斯,$κ$-$μ$,$η$-$μ$,和Rician阴影,仅举几例。特别地,我们应用正交展开来表示$κ$-$μ$阴影衰落分布作为简化的级数表达式。然后利用随机几何的级数表达式,我们提出了一个分析框架,以评估在$κ$-$μ$阴影衰落信道的SINR的任意函数的平均值。使用所提出的方法,我们评估的频谱效率,矩的SINR,误码率和中断概率的$K$层HetNet与$K$类的BS,不同的发射功率,BS密度,阴影特性和小规模衰落。在这些结果的基础上,我们提供了重要的新的见解,这些新兴的无线应用的网络性能,同时考虑到各种各样的衰落条件和链路质量。

英文摘要:

Emerging cellular technologies such as those proposed for use in 5G communications will accommodate a wide range of usage scenarios with diverse link requirements. This will include the necessity to operate over a versatile set of wireless channels ranging from indoor to outdoor, from line-of-sight (LOS) to non-LOS, and from circularly symmetric scattering to environments which promote the clustering of scattered multipath waves. Unfortunately, many of the conventional fading models adopted in the literature to develop network models lack the flexibility to account for such disparate signal propagation mechanisms. To bridge the gap between theory and practical channels, we consider $κ$-$μ$ shadowed fading, which contains as special cases, the majority of the linear fading models proposed in the open literature, including Rayleigh, Rician, Nakagami-m, Nakagami-q, One-sided Gaussian, $κ$-$μ$, $η$-$μ$, and Rician shadowed to name but a few. In particular, we apply an orthogonal expansion to represent the $κ$-$μ$ shadowed fading distribution as a simplified series expression. Then using the series expressions with stochastic geometry, we propose an analytic framework to evaluate the average of an arbitrary function of the SINR over $κ$-$μ$ shadowed fading channels. Using the proposed method, we evaluate the spectral efficiency, moments of the SINR, bit error probability and outage probability of a $K$-tier HetNet with $K$ classes of BSs, differing in terms of the transmit power, BS density, shadowing characteristics and small-scale fading. Building upon these results, we provide important new insights into the network performance of these emerging wireless applications while considering a diverse range of fading conditions and link qualities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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