Capacity Approaching Low-Rate LDGM Codes
Capacity Approaching Low-Rate LDGM Codes
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容量接近低速率 LDGM 码
DOI:
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发表时间:
2011
影响因子:
8.3
通讯作者:
J. Garcia
中科院分区:
文献类型:
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作者:
F. J. Vázquez;M. González;L. Castedo;J. Garcia
We study the ability of low-rate Serially-Concatenated Low Density Generator Matrix (SCLDGM) codes to approach theoretical limits. Although two layer SCLDGM codes approach capacity for medium rates (0.25 <; R <; 0.9), they do not perform adequately for lower rates. In this case, substantial performance improvements are obtained using three layers.