A Novel preamble structure for robust timing synchronization in OFDM system

Abstract

In burst mode OFDM system, symbol timing synchronization is done by detecting the long preamble boundary. Under a time dispersive channel the conventional long preamble boundary detection performance deteriorates. In this paper we propose a modification to the conventional preamble structure of burst mode OFDM system for robust symbol timing synchronization. We present through simulation a comparison of the performance of the proposed modified preamble against the conventional preamble in terms of symbol timing synchronization robustness under AWGN and channel condition.