New Channel Estimation Exploiting Reliable Decision-Feedback Symbols for OFDM Systems

被引：0

作者：

Park, Jung-Hyun ^{[1
]}

Oh, Mi-Kyung ^{[1
]}

Park, Dong-Jo ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Elect Engn & Comp Sci, Taejon 305701, South Korea

来源：

2006 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-12 | 2006年

关键词：

Channel estimation; OFDM; reliability; quasi-pilot; decision feedback; CRLB;

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：

The conventional pilot-aided orthogonal frequency division multiplexing (OFDM) systems use the fixed number of pilots to estimate the channel. In this paper, we propose a new channel estimation scheme that exploits reliable decision-feedback symbols in the OFDM systems. The reliable symbols having low symbol error rate can be used to refine the channel estimate again. The resultant algorithm gives a more accurate channel estimate and lower bit error rate (BER) than the conventional method. The analysis of Cramer Rao lower bound (CRLB) and simulation results verify our claims that the enhanced channel estimation and lower BER can be achieved.

引用

页码：3046 / 3051

页数：6

共 7 条

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