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Measuring Next and Fext

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Measuring Next and Fext

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  • Author: Chris Dunford
The technological advancements in telecommunications over the last decade have increased the demand for more services and variety in service offerings. The evolution of digital subscriber line (DSL) technologies and the increase in bandwidth are some of the changes that have resulted from this technological advancement, yet this evolution also presents new testing challenges to service providers who are determined to ensure quality of service (QoS) to their customers. In order to ensure QoS, service providers must use effective approaches for measuring noise, which adversely affects the desired signal as it passes through the transmission path-resulting in a corrupted signal that can be misinterpreted by the receiver, which translates to errors in the digital bit stream.

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