Maximum likelihood decoding of Low Density Parity Check coded subcarrier modulation in optical wireless systems

被引：0

作者：

Sharma, Manish ^{[1
]}

Chadha, D. ^{[2
]}

机构：

[1] Govt Polytech Coll, Dept Elect, Alwar, Rajasthan, India

[2] Indian Inst Technol, Dept Elect Engn, Delhi, India

来源：

2006 ANNUAL IEEE INDIA CONFERENCE | 2006年

关键词：

atmospheric turbulence; block codes; free space optical communication; low density parity check codes; maximum likelihood decoding; multiple subcarrier modulation;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

We propose Low Density Parity Check (LDPC) coded optical wireless communication systems with multiple subcarrier modulation (BPSK and QPSK). Upper bounds on the bit-error rate (BER) for maximum likelihood (ML) decoding of LDPC coded systems have been obtained on atmospheric optical channels where the effects of the scintillation exist. We also show that LDPC coded atmospheric optical systems have better BER than Turbo coded atmospheric optical systems.

引用

页码：71 / +

页数：2

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