Header error control schemes for coping with upstream channel noise in the HFC network |
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| Authors: | Chen Hui-fang Xie Lei Qiu Pei-liang |
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| Institution: | (1) Dept. of Information & Electronic Engineering, Zhejiang University, 310027 Hangzhou, China |
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| Abstract: | The Hybrid Fiber-Coax (HFC) network is being paid close attention to in recent years as a bi-directional broadband access
network. To achieve seamless connection with the backbone network, and Asynchronous Transfer Mode (ATM) Network Network Interface
(NNI) cell format is used as the basic transmission packet unit in the HFC system. As the transmission condition of the HFC
system’s upstream channel is bad, two improved header error control (HEC) schemes, i. e. the improved HEC and the cell interleaving
technique, are employed to guarantee the packet integrity. Theoretical analysis of the results showed that the improved HEC
and the cell interleaving technique are applicable to isolated random errors and burst errors, respectively. |
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| Keywords: | HFC Networks HEC BCH code Cell Interleaving Technique |
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