On the Block Error Rate Performance of Spatially Coupled LDPC Codes for Streaming Applications
Författare
Summary, in English
In this paper, we study the block error rate (BLER) performance of spatially coupled low-density parity-check (SC- LDPC) codes using a sliding window decoder suited for streaming applications. Previous studies of SC-LDPC have focused on the bit error rate (BER) performance or the frame error rate (FER) performance over the entire length of the code. Here, we consider protograph-based constructions of SC-LDPC codes in which a window decoder continuously outputs blocks in a streaming fashion, and we examine the BLER associated with these blocks.
We begin by examining the effect of protograph design on the streaming BLER by varying the block size and the coupling width in such a way that the overall constraint length of the SC-LDPC code remains constant. Next, we investigate the BLER scaling behavior with block size and coupling width. Lastly, we consider the effect of employing an outer code to protect blocks, so that small numbers of residual errors can be corrected by the outer code. Simulation results for the additive white Gaussian noise channel (AWGNC) are included and comparisons are made to LDPC block codes (LDPC-BCs).
We begin by examining the effect of protograph design on the streaming BLER by varying the block size and the coupling width in such a way that the overall constraint length of the SC-LDPC code remains constant. Next, we investigate the BLER scaling behavior with block size and coupling width. Lastly, we consider the effect of employing an outer code to protect blocks, so that small numbers of residual errors can be corrected by the outer code. Simulation results for the additive white Gaussian noise channel (AWGNC) are included and comparisons are made to LDPC block codes (LDPC-BCs).
Avdelning/ar
Publiceringsår
2016-09-12
Språk
Engelska
Publikation/Tidskrift/Serie
Proc. IEEE Information Theory Workshop
Fulltext
- Available as PDF - 353 kB
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Dokumenttyp
Konferensbidrag
Förlag
IEEE - Institute of Electrical and Electronics Engineers Inc.
Ämne
- Telecommunications
Nyckelord
- LDPC codes, spatially coupled codes, convolutional codes, streaming
Conference name
IEEE Information Theory Workshop
Conference date
2016-09-12 - 2016-09-14
Conference place
Cambridge, United Kingdom
Status
Published
ISBN/ISSN/Övrigt
- ISBN: 978-1-5090-1090-5