Pathloss Model of Distance Independent for Indoor Area

Rumin Yang; Qiyi Dai; Chengbo Yu

doi:10.3969/j.issn.1000-0801.2013.04.019

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Pathloss Model of Distance Independent for Indoor Area

research and development | 更新时间：2024-06-05

- Pathloss Model of Distance Independent for Indoor Area
- Telecommunication Science Vol. 29, Issue 4, Pages: 95-99(2013)
- 作者机构：
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- DOI：10.3969/j.issn.1000-0801.2013.04.019
  CLC：
- Published Online：2013-04，
  
  Published：20 April 2013
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Rumin Yang, Qiyi Dai, Chengbo Yu. Pathloss Model of Distance Independent for Indoor Area[J]. Telecommunication science, 2013, 29(4): 95-99.
DOI：

Rumin Yang, Qiyi Dai, Chengbo Yu. Pathloss Model of Distance Independent for Indoor Area[J]. Telecommunication science, 2013, 29(4): 95-99. DOI： 10.3969/j.issn.1000-0801.2013.04.019.

摘要

针对传统室内路径损耗依赖于距离以及其信道参数在LOS（视距）和NLOS（非视距）下的不确定性问题，提出了一种室内的纯统计路径损耗模型。该模型以距离作为随机变量，并引入室内路径切换频度表示LOS和NLOS的信道条件，从而消除路径损耗对距离的依赖以及信道参数的不确定性。通过该模型，在毋需知道路径长度的情况下，根据操作空间的半径和室内路径切换频度以及路径损耗的置信度估算出路径损耗，同时该模型也提出了3种服务质量（QoS）以满足不同的客户需求，与总是以最大功率发送信号的传统模型相比大大优化了资源配置。经实例验证表明，此模型应用方便，是一种简单且实用的模型。

Abstract

A pure statistical indoor path-loss model was proposed with an eye to address the problems of distance dependence and of line-of-sight（LOS）or non-LOS uncertainty，which lie in most conventional path-loss models.In the model，the path length（distance）was taken as a random variable，and the uncertainty of LOS or NLOS was represented by an alternating frequency between LOS and non-LOS channel conditions.Without knowing the priori path length，the model can estimate or predict the loss of path based on the priori knowledge of the radius of operating space，of the LOS/NLOS alternating frequency and of a confidence interval describing the path quality.In addition，three quality of services（QoS）for different quality requirements were proposed in order to conserve energy.As opposed to assuming fixed available power or covering the largest possible distance，which is typical in conventional models，the QoS-oriented model has significant advantages on resource allocation and energy conservation.Through a case study，it is indicated that this model is simple and practical.

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references

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