Performance analysis of flexible indoor and outdoor user distribution in urban multi-tier heterogeneous network

IF 0.7 4区管理学 Q3 COMMUNICATION

International Journal of Mobile Communications Pub Date : 2023-01-01 DOI:10.1504/ijmc.2023.127376

Amalorpava Mary Rajee Samuel, Merline Arulraj

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引用次数: 2

Abstract

The next generation heterogeneous networks (hetnet) refer to a complex eco system of radio cells with varying coverage ranges and technologies that interoperate to deliver the required capacity and coverage. This paper addresses the impact of large scale transmissions and analyses the performance of a typical user distribution in an urban multi-tier hetnet. A Boolean scheme of building blockage has been used to abstract the urban environment, which affects the architecture of hetnet with millimetre wave (mmW) access. A distribution mechanism is proposed to enable the indoor users to operate in mmW band whereas the outdoor users to operate in microwave (μWave) band. An indoor user can be connected with mmW band if the line-of-sight (LOS) link exists. Otherwise, the exploitation is provided with μWave band to enhance the coverage. By employing tools from stochastic geometry, the mathematical expressions are derived for coverage probability, rate and spatial average channel capacity of a user in indoor and outdoor environments. The exact mathematical results show that an impact of small cell occupation ratio results in maximised spatial average channel capacity of an outdoor hetnet. The significant enhancement is provided with mmW small cell in terms of rate and coverage.

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城市多层异构网络室内外用户柔性分布性能分析

下一代异构网络(hetnet)是指具有不同覆盖范围和互操作以提供所需容量和覆盖的技术的无线蜂窝的复杂生态系统。本文讨论了大规模传输的影响，并分析了城市多层网中典型用户分布的性能。采用布尔阻塞方案对城市环境进行抽象，从而影响了毫米波接入网络的结构。提出了一种分配机制，使室内用户在毫米波频段工作，室外用户在微波(μWave)频段工作。如果存在视距(LOS)链路，则可以使用毫米波频段连接室内用户。另外，利用μ波段进行开发，以提高覆盖范围。利用随机几何工具，推导了用户在室内和室外环境下的覆盖概率、覆盖率和空间平均信道容量的数学表达式。精确的数学结果表明，较小的小区占用率的影响会使室外网络的空间平均信道容量最大化。在速率和覆盖方面，毫米波小蜂窝提供了显著的增强。

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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来源期刊

International Journal of Mobile Communications COMMUNICATION-

自引率

12.50%

发文量

期刊介绍： The world of mobile communications is not a trend, but a phenomenon. IJMC, a fully refereed journal, publishes articles that present current practice and theory of mobile communications, mobile technology, and mobile commerce applications. Topics covered include Integrated mobile marketing communications Wireless advertising/CRM Telematics, pervasive computing Incoming/outgoing wireless links Location management Diffusion, security, efficacy, interaction/integration Metric mobile business enterprises PDAs in services delivery M-/u-business models, m-/u-commerce Digital office, groupware, roomware Mobile ad hoc networking, wireless information assurance Nomadic/portable communications Cross-cultural mobile communications Teaching mobile communication applications Mobile/handheld devices in the classroom, tele-learning.