PROJECT TITLE :

Robust Preamble Design for Synchronization, Signaling Transmission, and Channel Estimation

ABSTRACT:

The European second generation digital video broadcasting customary introduces a P1 image. This P1 image facilitates the coarse synchronization and carries seven-bit transmission parameter signaling (TPS), as well as the quick Fourier rework size, single-input/single-output and multiple-input/single-output transmission modes, etc. However, this P1 symbol suffers from obvious performance loss over fading channels. During this paper, an improved preamble scheme is proposed, where a pair of optimal m sequences are inserted into the frequency domain. One sequence is used for carrier frequency offset (CFO) estimation, and the opposite carries TPS to inform the receiver concerning the transmission configuration parameters. Compared with the conventional preamble theme, the proposed preamble improves CFO estimation performance and the signaling capability. Meanwhile, while not further overhead, the proposed scheme exploits additional active pilots than the traditional schemes. In this manner, it will facilitate the channel estimation, improve the frame synchronization accuracy furthermore enhance its robustness to frequency selective fading channels.