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	Joint coded modulation algorithm with erasure LDPC and OFDM
	Long Yi ; Kuang Linling ; Lu Jianhua
	2010-10-12 ; 2010-10-12
关键词	Practical Theoretical or Mathematical/ channel coding intercarrier interference modulation coding OFDM modulation parity check codes time-varying channels wireless channels/ joint coded modulation algorithm erasure LDPC codes OFDM orthogonal frequency division multiplex system time-variance wireless channel zero modulated symbol intercarrier interference broadband wireless communication system/ B6120B Codes B6250 Radio links and equipment B5230 Electromagnetic compatibility and interference
中文摘要	An erasure-based joint coded-modulation scheme was developed to reduce the high error floor caused by time-variance of wireless channels in orthogonal frequency division multiplex (OFDM) systems. Since the low-density parity-check (LDPC) has excellent performance in the erasure channel, erased bits are introduced into the LDPC codes and mapped into the zero modulated symbols to enable the modem to reduce the inter-carrier interference. Simulations show that the LDPC error floor for time-variant channels is reduced three fold compared with the separate coded-modulation system. This joint coded modulation algorithm significantly improves the performance of broad-band wireless communication systems in high speed environments.
语种	中文
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82693]
专题	清华大学
推荐引用方式 GB/T 7714	Long Yi,Kuang Linling,Lu Jianhua. Joint coded modulation algorithm with erasure LDPC and OFDM[J],2010, 2010.
APA	Long Yi,Kuang Linling,&Lu Jianhua.(2010).Joint coded modulation algorithm with erasure LDPC and OFDM..
MLA	Long Yi,et al."Joint coded modulation algorithm with erasure LDPC and OFDM".(2010).

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