Weighted ESAE channel estimation method for OFDM systems

被引：0

作者：

Zhang, YB ^{[1
]}

Kuang, JM ^{[1
]}

Liu, JK ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Informat Engn, Beijing 100081, Peoples R China

来源：

2004 INTERNATIONAL CONFERENCE ON COMMUNICATION, CIRCUITS, AND SYSTEMS, VOLS 1 AND 2: VOL 1: COMMUNICATION THEORY AND SYSTEMS | 2004年

关键词：

OFDM; channel estimation; PSAM; ESAE; weighted ESAE; VHF;

D O I：

10.1109/ICCCAS.2004.1346067

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

OFDM (Orthogonal Frequency Division Multiplexing) is a promising technique for achieving the high-bit-rates required by a wireless multimedia service over the time-dispersive multi-path channel. The PSAM (Pilot-Symbol Assisted Modulation) technique is a common channel estimation method for OFDM systems by using time and frequency correlation of the channel. ESAE (Extended Symbol Aided Estimation) method has more robust feature in fast fading channel, but it has an unstable property in a high-speed environment. This paper proposes a Weighted ESAE channel estimation method which is based on conventional ESAE method. In time and frequency selective channel, this, method has a. low algorithm complexity and short processing delay, and the BER performance is better than the conventional ESAE and PSAM methods.

引用

页码：291 / 294

页数：4

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