Performance results for digital subscriber line precoders

Phil Whiting*, Alexei Ashikhmin, Sem Borst, Jean Jennen, Gerhard Kramer, Adriaan J. De Lind Van Wijngaarden, Miroslav Živković

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Performance results are presented for digital subscriber line (DSL) precoders, also known as dynamic spectrum management (DSM) level 3, in terms of improvement of signal-to-noise ratio (SNR) and achievable bit rates under the very high speed digital subscriber line 2 (VDSL2) standard. Simulations were conducted using channel coefficients obtained from both empirical models and line measurements. The performance impact of various key factors is examined, including the number of lines, line lengths, frequency range, precoder design, channel measurement accuracy, and implementation accuracy (quantization errors). The results provide estimates of the achievable rate gains and offer guidance for the design and implementation of DSL precoders.

Original languageEnglish
Pages (from-to)147-162
Number of pages16
JournalBell Labs Technical Journal
Issue number1
Publication statusPublished - Mar 2008
Externally publishedYes


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