The application of compression methods for RoIP data transmission efficiency in the HFC network

2017 International Conference on Signals and Systems (ICSigSys) Pub Date : 2017-05-01 DOI:10.1109/ICSIGSYS.2017.7967028

TaeIll Kim, Chulsung Park, Sungkwon Park

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引用次数: 1

Abstract

Recently, with the construction of the All IP network infrastructure, Hybrid Fiber Coaxial (HFC) cable network is undergoing a digital transition based on optical IP network. HFC is a communication technology in which fiber optic cables and coaxial cables are used in different parts of the network to transport broadband content such as video, data and voice. Accordingly, there is applying Radio Over IP (RoIP) technology that is a generic term that describes the application of Voice over IP (VoIP) on two-way radio networks. RoIP is a technology for transmitting radio frequency signals using a digital IP network. Transmission of RF signals using the IP network requires conversion to digital data. However, a large amount of data is a generated during the digital conversion process. This makes efficient data transmission impossible. In this paper, we reduce the amount of data by using up/down sampling and Huffman compression methods. By using this method, it can transmit RF signal efficiently. Then, we measured compression ratio and Error Vector Magnitude (EVM), which is a performance degradation index due to compression, for performance evaluation based on modulation.

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压缩方法在HFC网络中对RoIP数据传输效率的应用

近年来，随着全IP网络基础设施的建设，基于光IP网络的HFC (Hybrid Fiber Coaxial)光缆网络正在进行数字化转型。HFC是一种通信技术，在网络的不同部分使用光纤电缆和同轴电缆传输宽带内容，如视频、数据和语音。因此，出现了应用IP无线通信(RoIP)技术，这是描述在双向无线网络上应用IP语音(VoIP)的通用术语。RoIP是一种利用数字IP网络传输射频信号的技术。使用IP网络传输射频信号需要转换为数字数据。然而，在数字转换过程中会产生大量的数据。这使得有效的数据传输变得不可能。在本文中，我们使用上下采样和霍夫曼压缩方法来减少数据量。采用该方法可以有效地传输射频信号。然后，我们测量了压缩比和误差矢量幅度(EVM)，这是由于压缩导致的性能退化指标，用于基于调制的性能评估。

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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2017 International Conference on Signals and Systems (ICSigSys)

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