Channel Estimation for high-speed packet-based OFDM communication systems

被引：0

作者：

Lee, WW ^{[1
]}

Jie, Z ^{[1
]}

机构：

[1] Univ Arkansas, Dept Elect Engn, Fayetteville, AR 72701 USA

来源：

5TH INTERNATIONAL SYMPOSIUM ON WIRELESS PERSONAL MULTIMEDIA COMMUNICATIONS, VOLS 1-3, PROCEEDINGS | 2002年

关键词：

algorithms; performance; design;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In Orthogonal Frequency Division Multiplexing ((OFDM)-based packet communication systems, it is desired to minimize the number of pilot symbols for better spectrum utilization. Also, accurate channel estimation is required for coherent demodulation of OFDM signals, particularly when modulated by multi-level modulation schemes. In this paper, we present a pilot-assisted decision-directed channel estimation technique suitable for packet transmission with relatively short OFDM symbols. Simulation has shown that our approach can save about 20% of the number of pilot symbols required in the conventional least square estimator for a situation considered in this paper.

引用

页码：1293 / 1298

页数：6

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