Bit-to-symbol mapping in LDPC coded modulation

Yuan Li, Chin Keong Ho, Yan Wu, S. Sun

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5 Citaten (Scopus)
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Samenvatting

Various bit-to-symbol mapping schemes are studied in an M-ary modulated system applying low-density parity-check (LDPC) code. By examining different assignment methods of LDPC codeword to two parallel channels with unequal signal-to-noise ratio (SNR), we find out that it is better to assign systematic bits of LDPC codeword to channels with higher SNR, even for regular LDPC code. Therefore, it is more advantageous to map as many systematic bits in LDPC codeword as possible to more significant bits (MSB) of the signal constellation in a LDPC coded M-ary modulation system. The performance gain achieved by this mapping scheme comes at no extra cost in power, rate and complexity.
Originele taal-2Engels
Titel2005 IEEE 61st vehicular technology conference, VTC2005-spring Stockholm : paving the path for the future : 30 May - 1 June 2005, Stockholm, Sweden
Plaats van productieNew York
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's683-686
Volume1
ISBN van geprinte versie0-7803-8887-9
DOI's
StatusGepubliceerd - 2005
Evenement61st Vehicular Technology Conference (VTC 2005-Spring) - Stockholm, Zweden
Duur: 30 mei 20051 jun 2005
Congresnummer: 61

Congres

Congres61st Vehicular Technology Conference (VTC 2005-Spring)
Verkorte titelVTC 2005-Spring
LandZweden
StadStockholm
Periode30/05/051/06/05
Ander2005 IEEE 61st Vehicular Technology Conference

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Citeer dit

Li, Y., Ho, C. K., Wu, Y., & Sun, S. (2005). Bit-to-symbol mapping in LDPC coded modulation. In 2005 IEEE 61st vehicular technology conference, VTC2005-spring Stockholm : paving the path for the future : 30 May - 1 June 2005, Stockholm, Sweden (Vol. 1, blz. 683-686). New York: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/VETECS.2005.1543379