Ingress cancellation is a method for removing narrowband noise from an electromagnetic signal using a digital filter.[1] This type of filter is used on hybrid fiber-coaxial broadband networks.[2][3]
If a carrier appears in the middle of the upstream data signal, ingress cancellation can remove the interfering carrier without causing packet loss.[citation needed]
Ingress cancellation also removes one or more carriers that are higher in amplitude than the data signal. Ingress cancellation eventually will break if the in-channel ingress gets too high.[citation needed]
References
edit- ^ Broadband Last Mile; Access Technologies for Multimedia Communications. CRC Press. 2018. pp. 290–299. ISBN 9781351836685.290-299&rft.pub=CRC Press&rft.date=2018&rft.isbn=9781351836685&rft_id=https://books.google.com/books?id=G6LsDwAAQBAJ&rfr_id=info:sid/en.wikipedia.org:Ingress cancellation" class="Z3988">
- ^ Lusky, I.; Geri, N.; Reznic, Z.; Bitran, Y. (2002). "Adaptive algorithms for choosing transmission parameters in dynamic channel conditions" (PDF). 2002 14th International Conference on Digital Signal Processing Proceedings. 1. IEEE: 53–56.53-56&rft.date=2002&rft.aulast=Lusky&rft.aufirst=I.&rft.au=Geri, N.&rft.au=Reznic, Z.&rft.au=Bitran, Y.&rft_id=https://www.ti.com.cn/cn/lit/wp/spay010/spay010.pdf&rfr_id=info:sid/en.wikipedia.org:Ingress cancellation" class="Z3988">
- ^ Popper, A.; Buda, F.; Sari, H. (2002). "Ingress noise cancellation for the upstream channel in broadband cable access systems". 2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333). Vol. 3. IEEE. pp. 1808–1812. doi:10.1109/ICC.2002.997160. ISBN 0-7803-7400-2. S2CID 22576844.1808-1812&rft.pub=IEEE&rft.date=2002&rft_id=https://api.semanticscholar.org/CorpusID:22576844#id-name=S2CID&rft_id=info:doi/10.1109/ICC.2002.997160&rft.isbn=0-7803-7400-2&rft.aulast=Popper&rft.aufirst=A.&rft.au=Buda, F.&rft.au=Sari, H.&rfr_id=info:sid/en.wikipedia.org:Ingress cancellation" class="Z3988">
See also
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