Combination of Iteration and Modified Tree Structure with Partial Transmit Sequence for PAPR Reduction in OFDM System

• Main Authors: Zhi-Hao Hong, 洪志豪
• Other Authors: Hou-shou Chen
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/10475986268877293896

碩士 === 國立中興大學 === 通訊工程研究所 === 104 === In this paper, we proposed three methods of orthogonal frequency division multiplexing (OFDM) system combined partial transmit sequence (PTS) with low complexity. In the PTS, as sub-blocks increase, the performance of reducing peak-to-average power ratio (PAPR) is getting better, but complexity grow exponentially. The first method is to reduce the complexity of PTS by iteration, and uses the information obtained from last time to get better performance, so it can use less sub-blocks to get the same performance as PTS .The second method is to reduce much complexity by modified tree structure than RC-PTS. The last is to reduce complexity of tree structure by Fano algorithm, and changes the parallel form of tree structure into series form. In this method, we also add the threshold to let complexity lower.