Robust Timing Synchronization for Multicarrier Systems Based on RST Invariance

Synchronization sensitivity of multicarrier systems

In this paper, we give an overview of the sensitivity of a number of multicarrier systems to carrier and clock synchronization errors. A comparison is made between orthogonal frequency division multiplexing/multiple access (OFDM(A)) and two combinations of the orthogonal multicarrier technique and the code-division multiple access (CDMA) technique, i.e., multicarrier CDMA (MC-CDMA), where the s...

Robust Symbol Timing Synchronization for OFDM Systems Using PN Sequence

Abstract—This paper presents the symbol timing synchronization for OFDM receivers using PN sequence of values 1 or -1. The proposed design preamble is based on the correlation property of Pseudo Noise (PN) codes. Simulation results show that the proposed scheme is more robust to multipath fading channel than the conventional PN-based Park method, particularly at low SNR. It helps in setting the...

Robust frequency and timing synchronization for OFDM

A rapid synchronization method is presented for an orthogonal frequency-division multiplexing (OFDM) system using either a continuous transmission or a burst operation over a frequency-selective channel. The presence of a signal can be detected upon the receipt of just one training sequence of two symbols. The start of the frame and the beginning of the symbol can be found, and carrier frequenc...

Robust Timing Synchronization in Aeronautical Mobile Communication Systems

Robust Signal Detection and Timing Synchronization Algorithms for OFDM Based Wireless Systems

In this paper, we propose robust and efficient signal detection and symbol timing synchronization schemes applicable to preamble based wireless systems such as WLAN and WMAN-OFDM. The signal detection algorithm is based on detecting the increase in energy at the beginning of the preamble. For symbol timing synchronization, instead of using conventional normalized timing metric, a new algorithm ...