Capacity Analysis of a WLAN Cell Using VoWiFi Service for CBR Traffic

IF 1.9 4区计算机科学 Q3 TELECOMMUNICATIONS

Wireless Personal Communications Pub Date : 2024-09-19 DOI:10.1007/s11277-024-11478-5

Ayes Chinmay, Hemanta Kumar Pati

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Abstract

The demand of IEEE 802.11 based Wireless Local Area Network (WLAN) is increasing in enterprises, homes, and public access areas primarily due to its high data rates, low cost, and ease of installation. While WLAN continues to be predominantly data-centric, the necessity of Voice over Internet Protocol (VoIP) over Wireless Fidelity (WiFi) or VoWiFi cell capacity analysis in infrastructure-based WLAN plays a vital role. We employed arbitration inter-frame space (AIFS) for assessing channel state before sending real-time data from one user equipment to another, and short inter-frame space (SIFS) for transmitting Request To Send (RTS), Clear To Send (CTS) and Acknowledgement (ACK) frames to study the VoWiFi cell capacity. We have proposed analytical approaches to estimate the cell capacity of an IEEE 802.11be WLAN standard Assess Point (AP) providing VoWiFi service considering well known vocoders such as G.723.1 and G.729. To minimize the call bandwidth, we employed the compressed RTP (cRTP) protocol. Additionally, we examined the impact of retransmission on cell capacity of a WLAN standard providing VoWiFi service.

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使用 VoWiFi 服务的 WLAN 小区 CBR 流量容量分析

企业、家庭和公共接入区域对基于 IEEE 802.11 的无线局域网（WLAN）的需求与日俱增，这主要归功于它的高数据传输速率、低成本和易于安装。虽然无线局域网仍然主要以数据为中心，但在基于基础设施的无线局域网中，无线保真（WiFi）网络电话（VoIP）或 VoWiFi 小区容量分析也发挥着至关重要的作用。我们采用了仲裁帧间空间（AIFS）和短帧间空间（SIFS）来研究 VoWiFi 小区容量，前者用于评估从一个用户设备向另一个用户设备发送实时数据前的信道状态，后者用于传输请求发送（RTS）、清除发送（CTS）和确认（ACK）帧。考虑到 G.723.1 和 G.729 等众所周知的声码器，我们提出了估算提供 VoWiFi 服务的 IEEE 802.11be WLAN 标准评估点（AP）小区容量的分析方法。为尽量减少通话带宽，我们采用了压缩 RTP（cRTP）协议。此外，我们还研究了重传对提供 VoWiFi 服务的 WLAN 标准小区容量的影响。

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

Wireless Personal Communications 工程技术-电信学

CiteScore

5.80

自引率

9.10%

发文量

663

审稿时长

6.8 months

期刊介绍： The Journal on Mobile Communication and Computing ... Publishes tutorial, survey, and original research papers addressing mobile communications and computing; Investigates theoretical, engineering, and experimental aspects of radio communications, voice, data, images, and multimedia; Explores propagation, system models, speech and image coding, multiple access techniques, protocols, performance evaluation, radio local area networks, and networking and architectures, etc.; 98% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again. Wireless Personal Communications is an archival, peer reviewed, scientific and technical journal addressing mobile communications and computing. It investigates theoretical, engineering, and experimental aspects of radio communications, voice, data, images, and multimedia. A partial list of topics included in the journal is: propagation, system models, speech and image coding, multiple access techniques, protocols performance evaluation, radio local area networks, and networking and architectures. In addition to the above mentioned areas, the journal also accepts papers that deal with interdisciplinary aspects of wireless communications along with: big data and analytics, business and economy, society, and the environment. The journal features five principal types of papers: full technical papers, short papers, technical aspects of policy and standardization, letters offering new research thoughts and experimental ideas, and invited papers on important and emerging topics authored by renowned experts.