首页> 外文会议>International Conference on Signal Processing(ICSP'06); 20061116-20; Guilin(CN) >Optimum Technique for PAPR Reduction in Digital Multimedia Broadcasting System
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Optimum Technique for PAPR Reduction in Digital Multimedia Broadcasting System

机译:降低数字多媒体广播系统PAPR的最佳技术

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This paper presents a new peak-to-average power ratio (PAPR) reduction method to optimize TDS-OFDM signals in DMB-T system. TDS-OFDM modulation induces high crest factors of the signals in time domain. The analysis is focused on the peak-to-average ratio reduction methods in RF front-end of the DMB-T system. The new algorithm is to combine improved partial transmit sequence (PTS) method and peak-cancellation technique in order to optimize the PAPR performance in multi-carries system. This method do not increase the undesirable spectrum re-growth and inter-modulation distortion. By simulation, it is shown that the new algorithm can achieve a lower PAPR value about 4dB~5dB at a little cost of bit error rate (BER) increase.
机译:本文提出了一种新的峰均功率比(PAPR)降低方法,以优化DMB-T系统中的TDS-OFDM信号。 TDS-OFDM调制在时域中引起信号的高波峰因数。分析的重点是DMB-T系统的RF前端中的峰均比降低方法。新算法将改进的部分传输序列(PTS)方法和峰值消除技术相结合,以优化多载波系统中的PAPR性能。此方法不会增加不希望的频谱重新增长和互调失真。仿真结果表明,新算法在不增加误码率的前提下,可以实现较低的PAPR值约4dB〜5dB。

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