基于OFDM的802.11a WLAN系统的鲁棒时间和频率同步

2006 Annual IEEE India Conference Pub Date : 2006-09-01 DOI:10.1109/INDCON.2006.302775

S.K. Manusani, R. S. Kshetrimayum, R. Bhattacharjee

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引用次数: 17

摘要

本文提出了一种适用于IEEE 802.11a无线局域网系统的鲁棒高效时频同步技术。该方法利用相关技术进行OFDM符号边界检测和频偏估计。利用长序曲的共轭特性降低了计算复杂度。该方法将粗时间和细频偏联合估计，在细时间估计之前先对频偏进行准确估计

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Robust Time and Frequency Synchronization in OFDM based 802.11a WLAN systems

In this paper, robust and efficient time and frequency synchronization technique suitable for IEEE 802.11a wireless LAN system is proposed. The proposed method performs OFDM symbol boundary detection and frequency offset estimation using correlation techniques. The conjugate property of long preamble is used to reduce the computational complexity. In this proposed method, coarse time and fine frequency offset are estimated jointly and the frequency offset is estimated accurately before fine time estimation

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2006 Annual IEEE India Conference

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