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首页> 外文会议>2010 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB 2010) >A novel combined PAPR reduction and channel estimation approach for OFDM systems
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A novel combined PAPR reduction and channel estimation approach for OFDM systems

机译：OFDM系统中一种新颖的组合PAPR减少和信道估计方法

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摘要

In this paper, a novel combination of peak-to-average power ratio (PAPR) reduction and channel estimation techniques for orthogonal frequency division multiplexing (OFDM) systems is addressed. In order to reduce the spectrum efficiency loss due the insertion of dedicated pilots for PAPR reduction issues, we propose to use some pilots dedicated for channel estimation to reduce the PAPR value. These pilots follow particular laws which allow their blind detection at the receiving side and avoid sending side information. At the receiver, based on these properties, the pilots are detected and channel estimation is then performed. The proposed laws operate in discrete domain to mitigate the performance degradation due to residual estimation error in continuous domain. Simulation results performed using the new DVB-T2 standard parameters show that the proposed approach gives better performance and higher spectral efficiency when compared to conventional Tone Reservation (TR) method.
机译：本文针对正交频分复用（OFDM）系统，提出了峰均功率比（PAPR）降低和信道估计技术的新型组合。为了减少由于插入专用导频来减少PAPR问题而导致的频谱效率损失，我们建议使用一些专用于信道估计的导频来减小PAPR值。这些飞行员​​遵循特定的法律，允许他们在接收方进行盲目检测，并避免发送辅助信息。在接收机处，基于这些属性，检测导频，然后执行信道估计。所提出的定律在离散域中操作，以减轻由于连续域中残留估计误差而导致的性能下降。使用新的DVB-T2标准参数进行的仿真结果表明，与传统的音频保留（TR）方法相比，该方法具有更好的性能和更高的频谱效率。

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