Impulse noise identification for the HFC upstream channel

Li, Kuo-Hui; Huang, Aiping; Ingram, M.A.; Howard, David M.

doi:10.1109/11.715319

Cited by 9 publications

References 10 publications

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Integrated Multi-purposed Testbed to Characterize the Performance of Internet Access over Hybrid Fiber Coaxial Access Networks

Chan

Carro

Gómez

et al. 2002

NETWORKING 2002: Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile A

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This paper presents an experimental testbed to study the noise effect on the performance of the transport layer over Hybrid Fiber Coaxial (HFC) networks. We have successfully designed and implemented an integrated complex testbed, which is suitable not only for laboratory environments but also reusable for real-world networks. The main purpose of the testbed is modeling the residential broadband data network using hardware simulation under several noise conditions and observing the effects on the performance of popular Internet applications as well as native TCP/UDP performances. A large number of public domain Internet measurement tools have been evaluated, from which several selective software tools have been used. In addition, new software has been developed to combine all software and hardware devices. Based on the testbed, we were able to study several issues of TCP/UDP over HFC networks by making a large number of automatic measurements and analysis. The testbed infrastructure would be very useful for cable operator and end users for monitoring and troubleshooting HFC networks, and can be effectively reused for related studies in similar environments such as wireless and DSL.

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Integrated Multi-purposed Testbed to Characterize the Performance of Internet Access over Hybrid Fiber Coaxial Access Networks

Chan

Carro

Gómez

et al. 2002

NETWORKING 2002: Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile A

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Link-level effect of a noisy channel over data transmission on the return path of an HFC network

Carro

Chan²,

Sánchez³

et al.

GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270)

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An improved channel model for ADSL and VDSL systems

Franklin

Xi²,

Chicharo³

WCC 2000 - ICCT 2000. 2000 International Conference on Communication Technology Proceedings (Cat. No.00EX420)

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This paper examines existing channel models used with xDSL systems and identifies a key shortcomingnamely, the implicit assumption that all impulse noise originates at the transmitter. Based on extensive data collected from the local loop, a new model is proposed which addresses this problem by combining a digital filter model of the transmission line with a distributed noise source. This better reflects the nature of a real telephone line, and thus provides a more solid basis for simulation and optimisation of xDSL systems. AbstractThis paper examines existing channel models used with xDSL systems and identifies a key shortcoming -namely, the implicit assumption that all impulse noise originates at the transmitter. Based on extensive data collected from the local loop, a new model is proposed which addresses this problem by combining a digital filter model of the transmission line with a distributed noise source. This better reflects the nature of a real telephone line, and thus provides a more solid basis for simulation and optimisation of xDSL systems.

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Impulse noise identification for the HFC upstream channel

Cited by 9 publications

References 10 publications

Integrated Multi-purposed Testbed to Characterize the Performance of Internet Access over Hybrid Fiber Coaxial Access Networks

Integrated Multi-purposed Testbed to Characterize the Performance of Internet Access over Hybrid Fiber Coaxial Access Networks

Link-level effect of a noisy channel over data transmission on the return path of an HFC network

An improved channel model for ADSL and VDSL systems

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