基于串音抑制和动态频谱管理的复合型算法

Joint Hybrid Algorithm of Crosstalk Cancellation and Dynamic Spectrum Management

串音是制约下一代VDSL2系统传输速率的主要因素。该文研究了DSL上行传输方向的串音问题,针对一种简单串音消除算法存在的问题和一类动态频谱管理算法的特点,提出一种复合型处理方法。新算法在抑制串音的基础上,通过合理分配发送信号功率谱,以保证每条传输线上的数据传输速率。对于QoS要求高的新型业务,新结果有重要实际意义。

Crosstalk is the major limiting issue in VDSL2 system.Crosstalk cancellation problem for upstream transmission is discussed,a hybrid algorithm is then proposed in this paper.The algorithm is formed from both a simple crosstalk cancellation and dynamic spectrum management algorithm.It has practical significance to the DSL system in which high QoS is required.