Interests
- LDPC decoder architectures
- Duo-binary turbo decoder architectures
- Dynamic reconfiguration
Publications
A 336 Gbit/s Full-Parallel Window Decoder for Spatially Coupled LDPC Codes
M. Herrmann, N. Wehn, M. Thalmaier, M. Fehrenz, T. Lehnigk-Emden, M. Alles.Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit), June, 2021, Porto, Portugal.
Polar Code Decoder Framework
T. Lehnigk-Emden, M. Alles, C. Kestel, N. Wehn. IEEE Conference Design, Automation and Test in Europe (DATE), March, 2019, Florence, Italy.
A new Architecture for High Throughput, Low Latency NB-LDPC Check Node Processing
P. Schläfer, V. Rybalkin, N. Wehn, M. Alles, T. Lehnigk-Emden, E. Boutillon. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), August, 2015, Hong Kong, China.
Syndrome Based Check Node Processing of High Order NB-LDPC Decoders
P. Schläfer, N. Wehn, M. Alles, T. Lehnigk-Emden, E. Boutillon. IEEE International Conference on Telecommunications (ICT 2015), April, 2015, Sydney, Australia.
PDF
Challenges and Limitations for Very High Throughput Decoder Architectures for Soft-Decoding
N. Wehn, S. Scholl, P. Schläfer, T. Lehnigk-Emden, M. Alles. Chapter 2 in: Chavet, C., Coussy, P. (Eds.): Advanced Hardware Design for Error Correcting Codes, Springer, January, 2015.
p. 7-31, ISBN: 978-3-319-10568-0
Link
Progress in Binary and Non-Binary Low Density Parity Check Codes
P. Schläfer, M. Alles, T. Lehnigk-Emden, N. Wehn. Invited Talk CCSDS Spring Meeting 2014, April, 2014, Noordwijk, Netherlands.
A New Dimension of Parallelism in Ultra High Throughput LDPC Decoding
P. Schläfer, M. Alles, T. Lehnigk-Emden, N. Wehn. IEEE Workshop on Signal Processing (SIPS'13), October, 2013, Taipei, Taiwan.
Design Space of Flexible Multigigabit LDPC Decoders
P. Schläfer, M. Alles, C. Weis, N. Wehn. VLSI Design, vol. 2012, 10 pages, May, 2012.
Article ID 942893
Link
ASIC Design of a Gbit/s LDPC Decoder for Iterative MIMO Systems
C. Gimmler-Dumont, F. Kienle, C. Weis, N. Wehn, M. Alles. IEEE International Conference on Computing, Networking & Communications, January, 2012, Maui, Hawaii.
Link
Simulation Acceleration in Wireless Baseband Processing
T. Lehnigk-Emden, M. Alles, T. Brack, N. Wehn. Processor and System-on-Chip Simulation, Springer, September, 2010.
FlexiChaP: A Dynamically Reconfigurable ASIP for Channel Decoding for Future Mobile Systems
M. Alles, T. Vogt, C. Brehm, N. Wehn. Published in: Dynamically Reconfigurable Systems (ISBN 978-90-481-3484-7), pages 293 - 314, DOI 10.1007/978-90-481-3485-4_14, March, 2010.
A Synthesizable IP Core for WiMedia 1.5 UWB LDPC Code Decoding
M. Alles, F. Berens, N. Wehn. In Proc. IEEE International Conference on Ultra-Wideband (ICUWB) 2009, pages 597 - 601, September, 2009, Vancouver, Canada.
PDF
3D Duo Binary Turbo Decoder Hardware Implementation
T. Lehnigk-Emden, M. Alles, N. Wehn. In Proc. ICT Mobile and Wireless Communications Summit (ICT-MobileSummit 2009), June, 2009, Santander, Spain.
PDF
A Rapid Prototyping Environment for ASIP Validation in Wireless Systems
M. Alles, T. Lehnigk-Emden, C. Brehm, N. Wehn. In Proc. edaWorkshop09, pages 43 - 48, May, 2009, Dresden, Germany.
PDF
A Novel LDPC Decoder for DVB-S2 IP
S. Müller, M. Alles, M. Schreger, M. Kabutz, F. Kienle, N. Wehn. In Proc. IEEE Conference Design, Automation and Test in Europe (DATE), pages 1308 - 1313, April, 2009, Nice, France.
PDF
FlexiChaP: A Reconfigurable ASIP for Convolutional, Turbo, and LDPC Code Decoding
M. Alles, T. Vogt, N. Wehn. In Proc. IEEE 5th International Symposium on Turbo Codes & Related Topics, pages 84 - 89 , September, 2008, Lausanne, Schweiz.
PDF
A Technical View on the URANUS Validation Platform
A. Viessmann, C. Spiegel, A. Burnic, Z. Bau, K. Statnikov, A. Waadt, S. Wang, X. Popon, R. Rodriguez Velilla, H. Saarnisaari, M. Alles, T. Brack, F. Kienle, F. Berens, S. Rotolo, F. Scalise, G. Bruck, N. Wehn, P. Jung. In Proc. ICT Mobile and Wireless Communications Summit (ICT-MobileSummit 2008), pages 10-12, June, 2008, Stockholm, Schweden.
A Case Study in Reliability-Aware Design: A Resilient LDPC Code Decoder
M. May, M. Alles, N. Wehn. In Proc. IEEE Conference Design, Automation and Test in Europe (DATE), pages 456 - 461, March, 2008, Munich, Germany.
PDF
Implementation Issues of Turbo Synchronization with Duo-Binary Turbo Decoding
M. Alles, T. Lehnigk-Emden, U. Wasenmüller, N. Wehn. Invited paper, In Proc. 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) 2007, September, 2007, Athens, Greece.
PDF
A Survey on LDPC Codes and Decoders for OFDM-based UWB Systems
T. Brack, M. Alles, T. Lehnigk-Emden, F. Kienle, N. Wehn, F. Berens, A. Rüegg. In Proc. IEEE Vehicular Technology Conference (VTC), pages 1549 - 1553 , April, 2007, Dublin, Ireland.
PDF
A Reliability-Aware LDPC Code Decoding Algorithm
M. Alles, T. Brack, N. Wehn. In Proc. 65th IEEE Vehicular Technology Conference (VTC2007-Spring), pages 1544 - 1548, April, 2007, Dublin, Ireland.
PDF
Low Complexity LDPC Code Decoders for Next Generation Standards
T. Brack, M. Alles, T. Lehnigk-Emden, F. Kienle, N. Wehn, N. E. L'Insalata, F. Rossi, M. Rovini , L. Fanucci. In Proc. IEEE Conference Design, Automation and Test in Europe (DATE), April, 2007, Nice, France.
PDF
Turbo-Codes vs. LDPC Codes (invited Talk)
F. Kienle, T. Lehnigk-Emden, T. Brack, M. Alles, T. Vogt, N. Wehn. Workshop on VLSI-Architectures for LDPC Decoders, October, 2006, Pisa, Italy.
A Synthesizable IP Core for WIMAX 802.16E LDPC Code Decoding
T. Brack, M. Alles, F. Kienle, N. Wehn. In Proc. 17th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) 2006, September, 2006, Helsinki, Finland.
Enhanced Channel Coding for OFDM-based UWB Systems
T. Brack, F. Kienle, T. Lehnigk-Emden, M. Alles, N. Wehn, F. Berens. In Proc. IEEE International Conference on Ultra-Wideband (ICUWB), pages 255-260, September, 2006, Waltham, USA.
Performance and Complexity Analysis of advanced Coding Schemes in the 4MORE Project
T. Lehnigk-Emden, T. Brack, M. Alles, N. Wehn, M. H. Hamon, P. Penard, R. Legouable, F. Berens. In Proc. 15th IST Mobile & Wireless Communications Summit, June, 2006, Myconos, Greece.
PDF