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.
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References
Ginis, G., Cioffi, J.: Vectored Transmission for Digital Subscriber Line Systems. IEEE J. Select. Areas Commun. 20(5), 1085–1104 (2002)
Cendrillon, R., Ginis, G., Van den Bogaert, E., Moonen, M.: A Near-optimal Linear Crosstalk Precoder for VDSL. IEEE Trans. on Communications 55(5), 860–863 (2007)
Cendrillon, R., Ginis, G., Van den Bogaert, E., Moonen, M.: A Near-optimal Linear Crosstalk Canceler for VDSL. IEEE Trans. on Signal Processing 54(8), 3136–3146 (2006)
Cendrillon, R., Yu, W., Moonen, M., Verlinden, J., Bostoen, T.: Optimal Multi-user Spectrum Balancing for Digital Subscriber Lines. IEEE Trans. on Communications 54(5), 922–933 (2006)
ITU-T Draft Standard G.vector: Self-FEXT Cancellation (Vectoring) for use with VDSL2 Transceivers, Temporary Document 09XC-R18R3 (2009)
Huawei Technologies Co., Ltd., Reducing the Back Channel Overhead of Crosstalk Channel Identification, ITU-T SG15/Q4 contribution 08CC-59 (September 2008)
ATIS pre-published Technical Report ATIS-PP-0600024, Multiple-Input Multiple-Output Crosstalk Channel Model (2009)
Huawei Technologies Co., Ltd., Speeding up the Convergence of Crosstalk Precoder Initialization with Error Scaling, ITU-T SG15/Q4 contribution 09AG-047 (February 2009)
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© 2010 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering
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Cendrillon, R., Liming, F., Chou, J., Long, G., Wei, D. (2010). Challenges and Solutions in Vectored DSL. In: Hei, X.J., Cheung, L. (eds) Access Networks. AccessNets 2009. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 37. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-11664-3_15
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DOI: https://doi.org/10.1007/978-3-642-11664-3_15
Publisher Name: Springer, Berlin, Heidelberg
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