Where are information superhighways headed?
ACM Computing Surveys (CSUR)
Interactive television systems
SAC '96 Proceedings of the 1996 ACM symposium on Applied Computing
IBM Journal of Research and Development - Papers on mustimedia systems
Relevance vector machines for enhanced BER probability in DMT-based systems
Journal of Electrical and Computer Engineering
User-perceived reliability of shared protection systems with the Erlang type-k repair scheme
International Journal of Information and Communication Technology
ICHIT'11 Proceedings of the 5th international conference on Convergence and hybrid information technology
TCP behavior over HFC cable modem access networks
Computer Communications
Hi-index | 0.25 |
The asymmetric digital subscriber line (ADSL) takes advantage of the existing twisted-pair copper loop that currently provides customer access to the telephone network. An ADSL modem is placed at each end of the loop to create a high speed access link above the existing telephone service. Since ADSL makes use of the existing copper telephone line, its application in the telephone network can conceivably be nearly as ubiquitous as the public telephone network itself. With ADSL, it is possible to connect small numbers of customers to broadband services in areas where full upgrade to hybrid fiber coaxial or fiber facilities is not economical in the near term. ADSL systems offer a means to introduce broadband services using the embedded base of metallic loops in areas where optic fiber-based, hybrid fiber-coaxial radio systems or other broadband transport systems may not be scheduled for deployment in time to meet business needs and customer demand. The article concentrates on ADSL systems capable of at least a nominal 6 Mb/s payload transport toward the customer, in addition to associated upstream channels and symmetrical “telephony” services via nonloaded loops that comply with carrier serving area design guidelines