A blind synchronizer for OFDM systems based on SINR maximization in multipath fading channels

Wen Long Chin, Sau Gee Chen

研究成果: Article同行評審

27 引文 斯高帕斯(Scopus)

摘要

This paper presents a blind synchronizer for orthogonal frequency-division multiplexing (OFDM) systems based on signal-to-interference-and-noise ratio (SINR) maximization. Due to the incurred losses from intersymbol interference (ISI) and intercarrier interference (ICI) introduced by synchronization errors, the SINR of the received data drastically drops. By taking advantage of this characteristic, both the symbol time and carrier frequency offsets are intuitively estimated by maximizing the SINR metric. For the SINR metric, two blind SINR estimations are investigated. The estimations do not need prior knowledge of the channel profiles and transmitted data. As such, the proposed maximum SINR (MSINR) synchronization algorithm is nondata aided so that the transmission efficiency can be improved. Moreover, to reduce the computational complexity, the early-late gate technique is proposed for the implementation of the synchronizer. Simulation results exhibit better performance for the MSINR algorithm than conventional techniques in multipath fading channels.

原文English
頁(從 - 到)625-635
頁數11
期刊IEEE Transactions on Vehicular Technology
58
發行號2
DOIs
出版狀態Published - 2009

All Science Journal Classification (ASJC) codes

  • 汽車工程
  • 航空工程
  • 電氣與電子工程
  • 應用數學

指紋

深入研究「A blind synchronizer for OFDM systems based on SINR maximization in multipath fading channels」主題。共同形成了獨特的指紋。

引用此