A blind maximum-SINR synchronization technique for OFDM systems

Wen Long Chin, Sau Gee Chen

研究成果: Conference contribution

摘要

This work 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 inter-symbol interference (ISI) and inter-carrier interference (ICI) introduced by synchronization errors, the SINR of the received data drops drastically. 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, we propose a blind SINR estimation, which does not need prior knowledge of the channel profiles and transmitted data. As such, the proposed maxi- mum-SINR (MSINR) synchronization algorithm is non-data-aided (NDA) so that the transmission efficiency can be improved. Moreover, to reduce the computational complexity, the early-late gate (ELG) 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
主出版物標題2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
頁面4427-4431
頁數5
DOIs
出版狀態Published - 2008 十二月 1
事件2008 IEEE Global Telecommunications Conference, GLOBECOM 2008 - New Orleans, LA, United States
持續時間: 2008 十一月 302008 十二月 4

出版系列

名字GLOBECOM - IEEE Global Telecommunications Conference

Other

Other2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
國家/地區United States
城市New Orleans, LA
期間08-11-3008-12-04

All Science Journal Classification (ASJC) codes

  • 電氣與電子工程

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