Validation in a component-based design flow for multicore SoCs
Proceedings of the 15th international symposium on System Synthesis
Journal of Systems and Software - Special issue: Rapid system prototyping
DATE '03 Proceedings of the conference on Design, Automation and Test in Europe: Designers' Forum - Volume 2
ASP-DAC '03 Proceedings of the 2003 Asia and South Pacific Design Automation Conference
Cosine-modulated multitone for very-high-speed digital subscriber lines
EURASIP Journal on Applied Signal Processing
| Hi-index | 0.25 |
We overview a digital duplex scheme called Zipper, intended for DMT-based VDSL systems. The Zipper multicarrier duplex scheme represents a breakthrough toward digital implementation of frequency-division duplexing. A duplex scheme is a method to divide the capacity of a line between the upstream and downstream directions. Zipper divides the available bandwidth by assigning different subcarriers for the different directions. As a prerequisite, DMT symbols are extended with an additional cyclic suffix, and are shaped at both the transmitter and receiver. Zipper is characterized by high flexibility and high spectral compatibility with programmable spectrum usage, robustness against frequency-selective impairments such as radio frequency interference and bridge taps, interoperability with ADSL, and high spectral efficiency since no guard bands are needed