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A Construction of Turbo-Like Codes for Iterative Channel Estimation Based on Probabilistic Bias
University of Electro-Communications, Department of Communication Engineering and Informatics.
Norwegian University of Science and Technology, Department of Electronics and Telecommunications.
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
2011 (English)In: IEEE Global Telecommunications Conference (GLOBECOM 2011), 2011, 2011, 1-5 p.Conference paper (Refereed)
Abstract [en]

A novel signaling scheme for iterative channel estimation and data decoding is proposed. In the proposed scheme, the occurrence probability of transmitted symbols is biased. A priori information about the bias is utilized for the initial channel estimation. The proposed scheme is based on parallel concatenation of two biased convolutional codes (BCCs), which are constructed as systematic recursive convolutional codes with state-dependent puncturing. The BCCs can be regarded as a joint coding scheme that determines the insertion positions of pilot symbols according to information bits. The proposed scheme is numerically shown to outperform conventional pilot-based schemes in the waterfall region, while it is inferior to the conventional schemes in the error-floor region.

Place, publisher, year, edition, pages
2011. 1-5 p.
National Category
Signal Processing Telecommunications
URN: urn:nbn:se:kth:diva-77836DOI: 10.1109/GLOCOM.2011.6133738ScopusID: 2-s2.0-84857212940OAI: diva2:492125
IEEE Global Telecommunications Conference (GLOBECOM 2011), 2011. Houston, TX, USA. 5-9 Dec. 2011

QC 20120413

Available from: 2012-02-07 Created: 2012-02-07 Last updated: 2014-08-29Bibliographically approved

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ReferencesLink to record
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