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Design of low density generator matrix codes for continuous phase modulation
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-5407-0835
2005 (English)In: GLOBECOM '05: IEEE Global Telecommunications Conference, Vols 1-6 - DISCOVERY PAST AND FUTURE, 2005, 1245-1249 p.Conference paper, Published paper (Refereed)
Abstract [en]

We investigate the low density generator matrix (LDGM) codes for continuous phase modulation (CPM). The nonsystematic version of LDGM codes is used in the scheme. The overall system has linear encoding complexity due to the low complexity of the LDGM codes. A property of the check node degree of the LDGM code is shown. We use the EXIT chart/function to optimize the LDGM codes. The EXIT function of CPM with a fixed SNR (Signal-to-Noise-Ratio) is shown. We derive the union bound to analyze the error floor performance. Design approaches for lowering error floors are suggested from the analysis process. Numerical results show that this scheme converges earlier (lower SNR) than best found serially concatenated CPM (SCCPM) for iterative decoding while maintaining comparable error floors.

Place, publisher, year, edition, pages
2005. 1245-1249 p.
Series
IEEE global telecommunications conference (Globecom), ISSN 1930-529X
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-29000DOI: 10.1109/GLOCOM.2005.1577851ISI: 000234989602022OAI: oai:DiVA.org:kth-29000DiVA: diva2:395578
Conference
IEEE Global Telecommunications Conference (GLOBECOM 05) St Louis, MO, NOV 28-DEC 02, 2005
Note
QC 20110207Available from: 2011-02-07 Created: 2011-01-25 Last updated: 2011-11-08Bibliographically approved

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Xiao, Ming

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  • apa
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  • de-DE
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  • nn-NB
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  • Other locale
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