Developing the Measurement System with Establishing the PHY Performance of Best Proper Cable Modem

Autor: Jae-Pyung Ko, Jang-Myung Lee, Kyoung-Moon Lee
Rok vydání: 2008
Předmět:
Zdroj: Journal of Institute of Control, Robotics and Systems. 14:205-211
ISSN: 1976-5622
DOI: 10.5302/j.icros.2008.14.2.205
Popis: This paper describes the method aimed at establishing the equipment measuring the parameter of Cable Network by Best proper Cable Modem and PDA through RS232 interface. In this paper, we propose our creative experimental configuration and develope the Cable Modem (DOCSIS 2.0) superior more performing than the referred Cable Modem (DOCSIS 1.0, 1.1) and the measuring equipment of HFC network compositing of Cable Modem and PDA through RS232 interface. This equipment analyzes Upstream (U/S) and Downstream (D/S) Signal quality and generates the signal of Upstream by CW signal. The paper also provides the experimental results to check the Best Proper Cable Modem and the displayed screen for parameters for SNR, BER and the demodulated IQ diagram of 256QAM through LCD of PDA. Henceforth, it`ll be possible to support a variety of the functions for E-mail, Internet, the speed test of WEB connection and the transmission of the measured result real time by PDA.
Databáze: OpenAIRE