Laurent Schmalen – Publications

Dr.-Ing. Laurent Schmalen (2011)

Former scientific co-worker

Current Employer:: Nokia Bell Labs, Stuttgart
E-mail:: Laurent.Schmalen(at)nokia.com

Beermann, M., Monzó, E., Schmalen, L., and Vary, P.:

GPU Accelerated Belief Propagation Decoding of Non-Binary LDPC Codes with Parallel and Sequential Scheduling,
in: Springer Journal of Signal Processing Systems, vol. 78, no. 1, Jan. 2015, pp. 21–34, ISSN: 1939-8018, DOI: 10.1007/s11265-014-0927-7.
Beermann, M., Monzó, E., Schmalen, L., and Vary, P.:

High Speed Decoding of Non-Binary Irregular LDPC Codes Using GPUs,
in: Proceedings of IEEE Workshop on Signal Processing Systems (SiPS), (Taipei, Taiwan, 16.-18.10.2013), Oct. 2013.
– Awarded as "Best Paper" –.
Schmalen, L., Adrat, M., Clevorn, T., and Vary, P.:

Windowed Iterative Source-Channel Decoding with Delay Constraints,
in: Proceedings of International Symposium on Turbo Codes & Related Topics, (Göteborg, Sweden, 27.-31.8.2012), Aug. 2012, pp. 16–20.
Schmalen, L. and Vary, P.:

Iterative Source-Channel Decoding with Reduced Error Floors,
in: IEEE Journal of Selected Topics in Signal Processing, vol. 5, no. 8, Dec. 2011, pp. 1577–1587, ISSN: 1932-4553, DOI: 10.1109/JSTSP.2011.2167216.
Schmalen, L., Adrat, M., Clevorn, T., and Vary, P.:

EXIT Chart Based System Design for Iterative Source-Channel Decoding with Fixed-Length Codes,
in: IEEE Transactions on Communications, vol. 59, no. 9, Sept. 2011, pp. 2406–2413, ISSN: 0090-6778, DOI: 10.1109/TCOMM.2011.062311.090019.
Schmalen, L., Tschauner, M., Breddermann, T., and Vary, P.:

Novel Iterative Multiple Description Coding for Correlated Sources,
in: Proceedings of European Signal Processing Conference (EUSIPCO), (Barcelona, Spain, 29.8.-2.9.2011), Aug. 2011.
Schmalen, L.:

Iterative source-channel decoding: Design and optimization for heterogeneous networks,
Dissertation, no. 29 in Aachener Beiträge zu Digitalen Nachrichtensystemen (ABDN) ed. by Vary, P., Verlag Mainz in Aachen, July 2011, ISBN: 3-861-30268-3.
Beermann, M., Schmalen, L., and Vary, P.:

Improved Decoding of Binary and Non-Binary LDPC Codes by Probabilistic Shuffled Belief Propagation,
in: Proceedings of IEEE International Conference on Communications (ICC), (Kyoto, Japan, 5.-9.6.2011), June 2011, ISBN: 978-1-61284-232-5, DOI: 10.1109/icc.2011.5962813.
Schmalen, L. and Vary, P.:

Reconstruction of Multiple Descriptions by MMSE Estimation,
in: ITG-Fachtagung Sprachkommunikation, (Bochum, Germany, 6.-8.10.2010), Berlin, Germany: VDE Verlag GmbH, Oct. 2010, ISBN: 978-3-80073-300-2.
– ITG Best Paper Award –.
Schmalen, L., Vary, P., Clevorn, T., and Adrat, M.:

Turbo Source Compression with Jointly Optimized Inner Irregular and Outer Irregular Codes,
in: Proceedings of IEEE Vehicular Technology Conference (VTC-Fall), (Ottawa, Canada, 6.-9.9.2010), Sept. 2010, ISBN: 978-1-42443-573-9, DOI: 10.1109/VETECF.2010.5594217.
Clevorn, T., Schmalen, L., Vary, P., and Adrat, M.:

Hybrid ARQ with Incremental Redundant Index Assignments for Iterative Source-Channel Decoding,
in: Proceedings of IEEE International Conference on Communications (ICC), (Cape Town, South Africa), May 2010.
Adrat, M., Antweiler, M., Schmalen, L., Vary, P., and Clevorn, T.:

On the Overshooting Effect in EXIT Charts of Iterative Source-Channel Decoding,
in: Proceedings of IEEE International Conference on Communications (ICC), (Cape Town, South Africa), May 2010.
Schmalen, L. and Vary, P.:

Error Resilient Turbo Compression of Source Codec Parameters Using Inner Irregular Codes,
in: Proceedings of International ITG Conference on Source and Channel Coding (SCC), (Siegen, Germany), VDE Verlag GmbH, Jan. 2010, ISBN: 978-3-80073-211-1.
Schmalen, L., Schlien, T., and Vary, P.:

The FlexCode Source-Channel Coding Approach for Audio and Speech Transmission,
in: Proceedings of International ITG Conference on Source and Channel Coding (SCC), (Siegen, Germany), VDE Verlag GmbH, Jan. 2010, ISBN: 978-3-80073-211-1.
Schmalen, L. and Vary, P.:

Near-Lossless Compression and Protection by Turbo Source-Channel (De-)Coding Using Irregular Index Assignments,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Taipei, Taiwan), Apr. 2009, pp. 2485–2488, ISBN: 978-1-42442-354-5.
Lüders, H., Eschbach, B., Schmalen, L., and Vary, P.:

OFDM Turbo DeCodulation with EXIT Optimized Bit Loading and Signal Constellations,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Taipei, Taiwan), Apr. 2009, pp. 2589–2592, ISBN: 978-1-42442-354-5.
Schmalen, L., Vary, P., and Adrat, M.:

Reduced-Search Source Decoders for Iterative Source-Channel Decoding,
in: ITG-Fachtagung Sprachkommunikation, (Aachen, Germany), VDE Verlag GmbH, Oct. 2008, ISBN: 978-3-80073-120-6.
Schmalen, L., Schotsch, B., Jeub, M., Vary, P., and Clevorn, T.:

The FlexCode Channel Coding Approach,
in: ITG-Fachtagung Sprachkommunikation, (Aachen, Germany), VDE Verlag GmbH, Oct. 2008, ISBN: 978-3-80073-120-6.
Clevorn, T., Schmalen, L., Vary, P., and Adrat, M.:

Iterative Source-Channel Decoding: Design of Redundant Index Assignments,
in: ITG-Fachtagung Sprachkommunikation, (Aachen), VDE Verlag GmbH, Oct. 2008, ISBN: 978-3-80073-120-6.
Schmalen, L., Schlien, T., and Vary, P.:

FlexCode Final Channel Coder,
Projektbericht, Templergraben 55, 52056 Aachen: IND, RWTH Aachen, Oct. 2008.
Schmalen, L., Vary, P., Adrat, M., and Clevorn, T.:

Complexity-Reduced Iterative Source-Channel Decoding by Conditional Quantization,
in: Proceedings of International Symposium on Turbo Codes & Related Topics, (Lausanne, CH), Sept. 2008, pp. 327–332, ISBN: 978-1-42442-862-5.
Thobaben, R., Schmalen, L., and Vary, P.:

Joint Source-Channel Coding with Inner Irregular Codes,
in: Proceedings of IEEE International Symposium on Information Theory (ISIT), (Toronto, Canada), July 2008, pp. 1153–1157, ISBN: 978-1-42442-256-2.
Clevorn, T., Schmalen, L., Vary, P., and Adrat, M.:

On Redundant Index Assignments for Iterative Source-Channel Decoding,
in: IEEE Communications Letters, vol. 12, no. 7, July 2008, pp. 514–516, ISSN: 1089-7798.
Schotsch, B., Schmalen, L., Vary, P., and Clevorn, T.:

Graph-Based Turbo DeCodulation with LDPC Codes,
in: Proceedings of IEEE Vehicular Technology Conference (VTC-Spring), (Singapore, 11.-14.5.2008), May 2008, pp. 772–776, ISBN: 978-1-42441-644-8, DOI: http://dx.doi.org/10.1109/VETECS.2008.169.
Schmalen, L., Vary, P., and Clevorn, T.:

FlexCode Baseline Channel Coder,
Projektbericht, Templergraben 55, 52056 Aachen: IND, RWTH Aachen, Feb. 2008.
Schmalen, L., Vary, P., Clevorn, T., and Schotsch, B.:

Efficient Iterative Source-Channel Decoding Using Irregular Index Assignments,
in: Proceedings of International ITG Conference on Source and Channel Coding (SCC), (Ulm, Germany), VDE Verlag GmbH, Jan. 2008, ISBN: 978-3-80073-077-3.
Lüders, H., Schmalen, L., and Vary, P.:

Approximating EXIT Characteristics of Soft Demodulators in OFDM BICM-ID Systems for Time Variant Frequency Selective Fading Channels,
in: Proceedings of International ITG Conference on Source and Channel Coding (SCC), (Ulm, Germany), VDE Verlag GmbH, Jan. 2008, ISBN: 978-3-80073-077-3.
Adrat, M., Clevorn, T., and Schmalen, L.:

Iterative Source-Channel Decoding & Turbo DeCodulation,
in: Advances in Digital Speech Transmission, ed. by Martin, R., Heute, U., and Antweiler, C., Chichester, UK: John Wiley & Sons, Ltd., Jan. 2008, ch. 13, pp. 365–398, ISBN: 978-0-47051-739-0.
Schmalen, L., Vary, P., Adrat, M., and Clevorn, T.:

On the EXIT Characteristics of Feed Forward Convolutional Codes,
in: Proceedings of IEEE International Symposium on Information Theory (ISIT), (Nice, France), June 2007, pp. 2686–2690.
Schmalen, L., Clevorn, T., and Vary, P.:

Iterative Source-Coded Equalization: Turbo Error Concealment for ISI Channels,
in: Proceedings of IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC), (Helsinki, Finland), June 2007.
Clevorn, T., Schmalen, L., Vary, P., and Adrat, M.:

On the Optimum Performance Theoretically Attainable for Scalarly Quantized Correlated Sources,
in: Proceedings of International Symposium on Information Theory and its Applications (ISITA), (Seoul, Korea), Oct. 2006.
Clevorn, T., Schotsch, B., Schmalen, L., Vary, P., and Adrat, M.:

Separation of Recursive Convolutional Codes into Sub-Codes using Galois Field Arithmetic,
in: Proceedings of Conference on Information Sciences and Systems (CISS), (Princeton, NJ, USA), Mar. 2006.
Schmalen, L. and Adrat, M.:

An Iterative, Turbo-like Approach to Convolutional Decoding,
in: Proceedings of International Student Conference on Electrical Engineering (POSTER), (Prague, Czech Republic), May 2005.