Title :
Unequal error protection using low-density parity-check codes
Author :
Rahnavard, Nazanin ; Fekri, Faramarz
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
27 June-2 July 2004
Abstract :
In this study, we propose a scheme to construct low-density parity-check (LDPC) codes that are suitable for unequal error protection (UEP). We derive density evolution formulas for the proposed ensemble over the binary erasure channel (BEC). For the finite length case, we compare our code with some other LDPC codes and the time-sharing method. Simulation results indicate the superiority of the proposed design methodology for unequal error protection.
Keywords :
channel coding; parity check codes; telecommunication channels; BEC; LDPC codes; UEP; binary erasure channel; low-density parity-check; unequal error protection; Computer errors; Design methodology; Error analysis; Error correction codes; Linear matrix inequalities; Optical design; Optical fiber networks; Parity check codes; Payloads; Time sharing computer systems;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365489
