用代理服务器提高HFC远端数据服务

Using Agent Server to Enhance the Performance of Remote Data Service Based on HFC Network

混合光纤 同轴电缆网络由于具有近 1GHz的用户接入频带而被视为仅次于光纤到户的宽带数据接入方式。但由于环境射频噪声等因素的影响导致数据传输服务的误码率增大 ,使得数据服务提高受到一定的限制。分析混合光纤 同轴电缆的数据传输特性 ,改进传输控制协议的数据传输端到端的可靠性包装机制 ,在网络前端引进代理服务器 ,可以充分发挥该接入网络的高数据传输率潜力 ,特别可提高远端的数据传输服务。

The bi-directional Hybrid Fiber/Coaxial (HFC), which has almost 1GHz frequency bandwidth to transmit information, is the best access mode except Fiber to the Home (FTTH). Initial experiences indicate that real-world HFC networks are susceptible to a variety of radio-frequency impairments that significantly reduce the benefits of using high-speed cable modems. In this paper, the performance of data services in the TCP sub-layer of a HFC network is discussed and an agent server is used to enhance the performance of remote data transmission.[WT5HZ]