Picture of Jochen Maes

Jochen Maes

Antwerp, Belgium
Department Head


Jochen Maes joined Bell Labs in 2006 where he continuously shifts the limits of copper. He is head of the Copper Access and Indoor department within the Fixed Networks lab of Nokia Bell Labs, focused on leveraging legacy copper infrastructure through innovations in systems and transceiver design. His work received the Broadband Infovision Award in 2010 and 2014 and the Bell Labs President’s Award in 2011. Jochen contributes to several standardization bodies, He is Bell Labs Fellow, senior member of IEEE, and holds a Masters degree in Physics and a Ph.D. in Science.

Selected Articles and Publications

Error Performance of Fixed Access and Home Technologies: Comparison and PHY-TCP Alignment

Sensitivity of Nonlinear Precoding to Channel Variations in G.fast

XG-FAST: The 5th Generation Broadband

The 5th Generation Broadband Copper Access

The 10X Ultrabroadband Copper Challenge

Linear and nonlinear precoding based dynamic spectrum management for downstream vectored G.fast transmission

Power Optimization in Vectored and Non-Vectored G.fast Transmission

DMT MIMO IC Rate Maximization in DSL with Per-Transceiver Power Constraints

G.fast: The Next Big Thing in Ultra-Broadband

General Framework and Algorithm for Data Rate Maximization in DSL Networks

Dynamic Bandplanning for Vectored DSL

research opportunities in DSL standards

Transmitter-Controlled Adaptive Modulation: Concepts and Results

DMT MIMO-IC Rate Maximization in DSL with Combined Signal and Spectrum Coordination

Comparison of error-control schemes for high-rate communication over short DSL loops affected by impulsive noise

On the Achievable Bit Rates of DSL Vectoring Techniques in the Presence of Alien Crosstalkers

Energy optimizations in broadband access networks

Digital Complexity in DSL: An Extrapolated Historical Overview

System Design of Reverse-powered G.fast

Energy Efficient Discontinuous Operation in Vectored G.fast

Energy Management of DSL Systems: Experimental Findings

Managing Unvectored Lines in a Vectored Group

Vectoring in DSL systems: Practices and Challenges

10 Gb/s Access – Introducing the XG-fast Concept

On the Achievable Bit Rates of DSL Vectoring Techniques in the Presence of Alien Crosstalkers

Shifting the limits of copper

Energy Management of dsl systems: experimental findings - Globecom talk

Get in the fast lane to push copper to the limits - EXFO webinar

Novel bitloading algorithms for coded G.fast DSL transmission with linear and nonlinear precoding

W. Lanneer, P. Tsiaflakis, J. Maes, and M. Moonen, ‘Linear and nonlinear precoding based dynamic spectrum management for downstream vectored G.fast transmission’, proceedings of IEEE Globecom 2015, Dec. 2015.


J. Maes, C.J. Nuzman, and P. Tsiaflakis, ‘Sensitivity of Nonlinear Precoding to Channel Variations in G.fast’, proceedings of EUSIPCO 2016, pp. 290-294, Aug. 2016.


W. Coomans, R.B. Moraes, K. Hooghe, A. Duque, J. Galaro, M. Timmers, A.J. van Wijngaarden, M. Guenach, and J. Maes, ‘XG-FAST: The 5th Generation Broadband’, IEEE Communications Magazine, Dec. 2015.


J. Maes and C.J. Nuzman, ‘The Past, Present and Future of Copper Access’, Bell Labs Technical Journal 20, pp 1-10, 2015.


J. Maes, and C. Nuzman, ‘Energy Efficient Discontinuous Operation in Vectored G.fast’, proceedings of ICC2014.


M. Timmers, M. Guenach, C. Nuzman, and J. Maes, ‘G.fast: Evolving the Copper Access Network,’ IEEE Communications Magazine, Vol.51, No.8, pp. 74-79, August 2013.


A.R. Forouzan, M. Moonen, J. Maes, and M. Guenach, ‘Joint level 2 and 3 dynamic spectrum management for upstream VDSL’, IEEE Transactions on Communications Vol. 59, No 10, pp 2851-2861, 2011.


J. Maes, M. Timmers, and M. Guenach, ‘Spectral Compatibility of In-Home and Access Technologies’, proceedings of IEEE ISPLC, Italy, April 2011.


M. Guenach, C. Nuzman, K. Hooghe, J. Maes, and M. Peeters, ‘Reduced dimensional power optimization using class AB and G line drivers in DSL’, proceedings of IEEE Global Communications Conference (Globecom), Miami, December 2010.


J . Maes, C. Nuzman, A. Van Wijngaarden, D. Van Bruyssel, ‘Pilot-based crosstalk channel estimation for vector-enabled VDSL systems’, proceedings of the 44th Annual Conference of Information Sciences and Systems (CISS 2010), Princeton, March 2010.


J. Maes, M. Guenach, and M. Peeters‚ Statistical MIMO channel model for gain quantification of DSL crosstalk mitigation techniques’, proceedings of IEEE International Conference on Communications (ICC09), Dresden, May 2009.


20+ granted patents; 20+ pending patents