Frame Head Mode Detection and Symbol Detection Scheme for Digital Terrestrial Multimedia Broadcasting Systems

被引：3

作者：

Zheng, Zi-Wei ^{[1
,2
]}

机构：

[1] Ningbo Univ, Coll Informat Sci & Engn, Ningbo 315211, Zhejiang, Peoples R China

[2] Dalian Maritime Univ, Coll Informat Sci & Technol, Dalian 116026, Peoples R China

来源：

IEEE TRANSACTIONS ON BROADCASTING | 2012年 / 58卷 / 03期

基金：

美国国家科学基金会;

关键词：

Digital terrestrial television broadcasting; frame head mode detection; orthogonal frequency division multiplexing; symbol detection; DVB-T; OFDM; SYNCHRONIZATION;

D O I：

10.1109/TBC.2012.2190871

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

As an effective technique for combating multipath fading and for high-bit-rate transmission over wireless channels, orthogonal frequency division multiplexing (OFDM) is extensively used in modern digital television terrestrial broadcasting (DTTB) systems to support high performance bandwidth-efficient multimedia services. Chinese digital television terrestrial broadcasting standard recommends three kinds of Frame Head mode with PN420/PN595/PN945 as training sequences for the time domain synchronous OFDM (TDS-OFDM) based Digital Terrestrial Multimedia Broadcasting (DTMB) systems. At the receiver side, Frame Head mode detection and symbol detection should be done before subsequent synchronization and channel estimation. In this paper, a Frame Head mode detection and symbol detection scheme robust to carrier frequency offset is proposed for the TDS-OFDM based DTMB systems. Performance studies under different channel situations are used to verify the efficiency of the proposed scheme.

引用

页码：493 / 498

页数：6

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