A Study of VDSL2 for Connection Quality and Improvement

• Main Authors: Chien-ju Lee, 李建儒
• Other Authors: Herng-Yih Ueng
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/4uzuf9

碩士 === 國立中山大學 === 電機工程學系研究所 === 96 === According to the combination of video/HDTV, data, and voice on a single medium, dubbed “Triple Play”, requires more sophisticated QoS (Quality of Service) features than are available in either VDSL1 or ADSL. Lastly, Triple Play services, with a minimum of three TV channels, several VoIP connections, and sufficient speed for Internet access, require high data rates of at least 30 – 40 Mbit/s, about twice of what can be achieved under real field conditions with today’s ADSL2+ solutions. VDSL2 was developed and standardized in record time to address the shortcomings of existing access technologies. It serves as the ideal xDSL technology for eliminating last-mile bottlenecks and to enable global mass deployment of advanced Triple Play services.