Journal ArticleDOI
A second wind for wiring [ADSL]
TLDR
In this paper, the authors discuss the technology involved and its implementation, and various aspects of the service are considered together with Internet access for asymmetric digital subscriber line (ADSL) modems delivering voice and high-speed data simultaneously over ordinary twisted pairs.Abstract:
Asymmetric digital subscriber line (ADSL) modems deliver voice and high-speed data (at up to 6 Mb/s) simultaneously over ordinary twisted pairs. The author discusses the technology involved and its implementation. Various aspects of the service are considered together with Internet access.read more
Citations
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Journal ArticleDOI
Access network evolution beyond third generation mobile communications
Werner Mohr,W. Konhauser +1 more
TL;DR: A concept for a system beyond third-generation mobile radio systems is presented, which comprises a combination of several optimized access systems in a common IP-based medium access and core network platform, which requires extensive international research and standardization activities to solve many technical challenges.
Journal ArticleDOI
A 30-MHz Fifth-Order Elliptic Low-Pass CMOS Filter With 65-dB Spurious-Free Dynamic Range
TL;DR: A fifth-order 30-MHz integrated low-pass filter with 65-dB spurious-free dynamic range and high linearity and low noise are achieved by using polysilicon resistors and efficient highly linear transconductors based on a proposed nonlinear source degeneration technique.
Proceedings ArticleDOI
User-perceived performance of Web-browsing and interactive data in HFC cable access networks
TL;DR: This work uses end-to-end page delays to characterise the user experience, and introduces a measure called equivalent circuit rate (ECR), which is the dedicated access circuit bit rate required to achieve the same user experience.
Patent
Method and apparatus for connecting to a packet based communication system
TL;DR: In this article, a DSLAM is used to disconnect a telecommunications device from a local exchange and a data network, removing the necessity to dial, or input numbers to access the data network.
Proceedings ArticleDOI
Mobile communications beyond third generation
Werner Mohr,R. Becher +1 more
TL;DR: This paper presents a vision of a system beyond third generation mobile communications, which comprises a combination of several optimized access systems on a common IP based medium access and core network platform.