Interference and Coverage Analysis for Indoor Terahertz Wireless Local Area Networks

2019 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2019-12-01 DOI:10.1109/GCWkshps45667.2019.9024417

Yongzhi Wu, Chong Han

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引用次数: 18

Abstract

Providing high-bandwidth and fast-speed links, wireless local area networks (WLANs) in the Terahertz (THz) band have huge potential for varieties of bandwidth-intensive indoor applications. However, due to the specific phenomena in the THz band, including severe molecular absorption, human- body blockage, small-scale fading, analysis on the interference, coverage and achievable rate at the downlink is still a challenging problem. In this paper, by using the tool of stochastic geometry, the exact distribution for the received signal power and the approximated distribution for the interference with its analytical moments at an arbitrary user equipment (UE) are derived. More- over, semi-closed-form expressions for the coverage probability and the average achievable rate are investigated. The theoretical derivations are validated with Monte-Carlo simulations. Finally, numerical results demonstrate that narrower beam-width of main lobe at directional antennas and more access points (APs) can enhance the received signal power and the total interference, and effectively influence the coverage and average achievable rate.

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室内太赫兹无线局域网的干扰与覆盖分析

太赫兹(THz)频段的无线局域网(wlan)提供高带宽和高速链路，对于各种带宽密集型室内应用具有巨大的潜力。然而，由于太赫兹波段存在严重的分子吸收、人体阻塞、小规模衰落等特殊现象，对下行链路的干扰、覆盖和可实现速率的分析仍然是一个具有挑战性的问题。本文利用随机几何的工具，导出了在任意用户设备处接收信号功率的精确分布和干扰及其解析矩的近似分布。此外，还研究了覆盖概率和平均可达率的半封闭表达式。通过蒙特卡罗仿真验证了理论推导的正确性。最后，数值计算结果表明，减小定向天线主瓣波束宽度和增加接入点(ap)可以增强接收信号功率和总干扰，并有效影响覆盖范围和平均可达速率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 IEEE Globecom Workshops (GC Wkshps)

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