Access Networks. 4th International Conference, AccessNets 2009, Hong Kong, China, November 1-3, 2009, Revised Selected Papers

Research Article

Challenges and Solutions in Vectored DSL

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  • @INPROCEEDINGS{10.1007/978-3-642-11664-3_15,
        author={Raphael Cendrillon and Fang Liming and James Chou and Guozhu Long and Dong Wei},
        title={Challenges and Solutions in Vectored DSL},
        proceedings={Access Networks. 4th International Conference, AccessNets 2009, Hong Kong, China, November 1-3, 2009, Revised Selected Papers},
        proceedings_a={ACCESSNETS},
        year={2012},
        month={10},
        keywords={DSL Crosstalk Cancellation Vectoring DSM},
        doi={10.1007/978-3-642-11664-3_15}
    }
    
  • Raphael Cendrillon
    Fang Liming
    James Chou
    Guozhu Long
    Dong Wei
    Year: 2012
    Challenges and Solutions in Vectored DSL
    ACCESSNETS
    Springer
    DOI: 10.1007/978-3-642-11664-3_15
Raphael Cendrillon1,*, Fang Liming1, James Chou1, Guozhu Long1, Dong Wei1
  • 1: Huawei Technologies Co., Ltd., Bantian Longgang District
*Contact email: Raphael_2008@huawei.com

Abstract

VDSL2 is the latest generation of DSL technology, and aims to provide data-rates in excess of 100 Mbps to the home to enable next generation, high bandwidth services. Such high data-rates are achieved by transmitting at frequencies up to 30 MHz. Unfortunately transmitting at such high frequencies over twisted-pair leads to strong crosstalk between the lines. To address this issue crosstalk cancellation and precoding were developed, techniques known collectively as vectoring. The ITU is now finalizing the first version of the G.vector standard which specifies how vectoring should be implemented. This paper presents some of the more interesting problems that have been encountered in the development of this standard, and shows how creative solutions, which take advantage of the unique characteristics of the DSL environment, have helped develop vectoring from theory into a practical technology that will soon be ready for commercial deployment.