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Downlink Overloaded Multiple Access Based on Constellation Expansion
Huawei Technologies Sweden.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems. Huawei Technologies Sweden.
Huawei Technologies Sweden.
2015 (English)In: 2014 IEEE Globecom Workshops: GC Wkshps 2014, Austin, 8-12 December 2014, Piscataway, Nj: IEEE Communications Society, 2015, 977-982 p.Conference paper (Refereed)
Abstract [en]

A new overloaded multiple access scheme for the downlink of wireless systems is presented. It performs simultaneous transmission of multiple data streams intended for users experiencing similar signal-to-noise ratios (SNR). The proposed scheme performs stream multiplexing by mapping the coded bits of each stream onto the labels of an expanded constellation according to a time-varying pattern designed for providing the same level of protection against errors to all streams. Using this scheme, multiple data streams can be concurrently transmitted on the same time-frequency resource blocks of OFDMA systems, thus achieving a higher aggregate spectral efficiency and tighter delay constraints.

Place, publisher, year, edition, pages
Piscataway, Nj: IEEE Communications Society, 2015. 977-982 p.
Research subject
Signal Processing
URN: urn:nbn:se:ltu:diva-26950DOI: 10.1109/GLOCOMW.2014.7063560Local ID: 038f6c55-3cea-4524-9887-8d64e69d27c7ISBN: 978-1-4799-7470-2OAI: diva2:1000131
IEEE GLOBECOM : 08/12/2014 - 12/12/2014
Godkänd; 2015; 20140910 (jaavan)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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