DocumentCode
791175
Title
New results on unequal error protection using LDPC codes
Author
Rahnavard, Nazanin ; Fekri, Faramarz
Author_Institution
Sch. of Electr. & Comput. Eng, Georgia Inst. of Technol., Atlanta, GA, USA
Volume
10
Issue
1
fYear
2006
fDate
1/1/2006 12:00:00 AM
Firstpage
43
Lastpage
45
Abstract
In this letter, we propose a new scheme to construct low-density parity-check (LDPC) codes that are suitable for unequal error protection (UEP). We derive UEP density evolution (UDE) formulas for the proposed ensemble over the binary erasure channel (BEC). Using the UDE formulas, high performance UEP codes can be found. Simulation results depict an improvement in the bit error rate of more important bits in comparison with previous results on UEP-LDPC codes.
Keywords
binary codes; channel coding; error correction codes; error statistics; parity check codes; BEC; BER; LDPC code; UEP density evolution formula; binary erasure channel; bit error rate; low-density parity-check code; unequal error protection; Bit error rate; Computer errors; Design methodology; Error analysis; Error correction codes; Parity check codes; Protection;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2006.1576564
Filename
1576564
Link To Document