A general SFN structure with transmit diversity for TDS-OFDM system
A general SFN structure with transmit diversity for TDS-OFDM system
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DOI：
10.1109/tbc.2006.872988
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发表时间：
2006-06
影响因子：
4.5
通讯作者：
Jian-Tao Wang;Jian Song;Jun Wang;Changyong Pan;Zhixing Yang;L. Yang
中科院分区：
文献类型：
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作者：
Jian-Tao Wang;Jian Song;Jun Wang;Changyong Pan;Zhixing Yang;L. Yang
在数字电视地面广播中，单频网络（SFN）具有很大的优势。SFN可以在任意大的区域内以相同的频率广播相同的信息，从而产生潜在的分集增益。为了提高时域同步-正交频分复用（TDS-OFDM）系统在SFN中的传输性能，介绍了一种具有发射分集的通用SFN结构，并进行了理论分析和计算机仿真。所提出的SFN结构设置灵活。仿真结果表明，该方法大大提高了信号在频率选择性衰落信道上传输的可靠性，适用于SFN环境下的TDS-OFDM系统。
In the digital television terrestrial broadcasting, the Single Frequency Network (SFN) has much advantage. SFN can serve an arbitrary large area with the same information broadcasted at the same frequency, resulting in the potential diversity gain. To improve the transmission performance of the Time Domain Synchronous-Orthogonal Frequency Division Multiplexing (TDS-OFDM) system in SFN, a general SFN structure with transmit diversity is introduced, theoretically analyzed and computer simulated. The proposed SFN structure is flexible to set up. Simulations show that this method can greatly improve the reliability of the signal transmission over the frequency selective fading channels and is suitable for the TDS-OFDM system in SFN.