An introduction of up-link access method for cable modem which provides better robustness to actual ingress noise, and the result of test in an actual CATV network

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Other Title
  • 耐流合雑音特性を高めたケーブルモデム上り通信方式の紹介と実フィールドでの動作実験結果

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Description

Ingress noise is generally known to degrade up-link signals in CATV network. In particular, ingress noise in the frequency band lower than 20MHz disturbs seriously the data communication. In this paper, at first, we analyze the ingress noises in the actual CATV networks. Based on the measurement result above, we introduce the up-link access method, which uses multi-carrier frequency hopping mechanism. Then we show a potential of communication in low frequency bandwidth by means of the test result in an actual CATV network with the cable modem system that uses the access method.

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Details 詳細情報について

  • CRID
    1572824502213350784
  • NII Article ID
    110003190888
  • NII Book ID
    AN10013108
  • Text Lang
    ja
  • Data Source
    • CiNii Articles

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