摘要
研究了OFDM-PTS算法中的三种不同分割方法:相邻分割、随机分割、交织分割三种子序列分割方案的特性。这些改进的算法与常规的PTS方法相比,大大降低了系统的复杂性,而且带来效率的损失也较小。通过选用不同的子序列分割的方法来改善系统的性能。对于交织分割法,利用其在分割顺序上的特点,可以进一步降低PTS算法的复杂度,并且在系统性能上,仅次于采用随机分割方法。
This paper studies the characteristics of the three subsequence segmentation methods in OFDM-PTS algorithms including adjacent segmentation, random segmentation and interlacing segmentation. Compared with the regular PTS algorithm, these improved algorithms greatly reduce the system complexity with less etficiency loss. By choosing different subsequence segmentation algorithms, the performance of the system is improved. For interlacing segmentation algorithm, taking advantage of its characteristics in the segmentation sequence can further reduce the complexity of PTS algorithm, and its system performance is just inferior to that using random segmentation algorithm.
出处
《信息技术》
2008年第8期82-85,共4页
Information Technology
关键词
OFDM-PTS算法
相邻分割
随机分割
交织分割
OFDM-PTS algorithms
adjacent segmentation
random segaentation
interlacing segmentation
