LDPC coding schemes for error control in a multicast network
Jingyu Kang
Bo Zhou
Zhi Ding
Shu Lin
Dept. of Electr. & Comput. Eng., Univ. of California, Davis, CA;
This paper appears in: Information Theory, 2008. ISIT 2008. IEEE International Symposium on
Publication Date: 6-11 July 2008
On page(s): 822-826
Location: Toronto, ON,
ISBN: 978-1-4244-2256-2
INSPEC Accession Number: 10156501
Digital Object Identifier: 10.1109/ISIT.2008.4595101
Current Version Published: 2008-08-08
Abstract
This paper investigates error control at the physical layer of a multicast network using low-density parity-check (LDPC) codes. Packets for transmission are encoded into LDPC codewords. A joint iterative message-passing scheme for decoding LDPC codewords at a receive node in the network is proposed to improve error performance. Also proposed is a split-codeword transmission to provide equal error protection for all transmitted packets. Density evolution analysis and some simulation results are also presented.
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