PP-OFDM with BICM-ID and postfix amplitude optimization

CORC > 北京大学 > 信息科学技术学院

	PP-OFDM with BICM-ID and postfix amplitude optimization
	Jiao, Xian-Jun ; Xiang, Hai-Ge
刊名	dianzi yu xinxi xuebaojournal of electronics and information technology
	2007
英文摘要	A new postfixing scheme for OFDM is proposed, where PP (Pilot Postfix) is inserted in the guard interval after OFDM symbol, and PP-OFDM system is constructed with BICM-ID (Bit-Interleaved Coded Modulation with Iterative Decoding). PP is generated by IFFT to frequency domain pilot symbols in OFDM symbol, and can be combined with those pilots in OFDM symbol at receiver. Channel estimation, equalization and BICM-ID algorithm for PP-OFDM are also proposed. Effective SNR degradation caused by imperfect channel estimation is studied, and a method is proposed to optimize the amplitude of PP. With the optimal PP amplitude, simulations show that PP-OFDM has better channel estimation performance and lower PER (Packet Error Rate) than CP/ZP-OFDM (Cyclic Prefix/Zero Postfix-OFDM).; EI; 0; 9; 2177-2181; 29
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/409757]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Jiao, Xian-Jun,Xiang, Hai-Ge. PP-OFDM with BICM-ID and postfix amplitude optimization[J]. dianzi yu xinxi xuebaojournal of electronics and information technology,2007.
APA	Jiao, Xian-Jun,&Xiang, Hai-Ge.(2007).PP-OFDM with BICM-ID and postfix amplitude optimization.dianzi yu xinxi xuebaojournal of electronics and information technology.
MLA	Jiao, Xian-Jun,et al."PP-OFDM with BICM-ID and postfix amplitude optimization".dianzi yu xinxi xuebaojournal of electronics and information technology (2007).