对称双二叉树PTS相位搜索

doi:10.3969/j.issn.0255-8297.2013.03.009

Abstract

Abstract: To reduce computation complexity of the partial transmit sequence (PTS) for OFDM systems, a symmetrical dual binary tree search method is proposed, in which the search of the optimum phase factor is mapped to the search of a minimum cost path of a full binary tree. By selecting the number of intermediate
nodes and the search depth, the proposed method effectively reduce both peak-to-average power ratio (PAPR) and the computation complexity of PTS. Simulation results show that the method can make a good tradeoff between the computation complexity and the OFDM performance.

Key words: orthogonal frequency division multiplexing (OFDM), partial transmit sequence (PTS), peak-toaverage power ratio (PAPR), symmetrical dual binary tree

CLC Number:

TN929.5

HE Xuan-sen, ZENG Qing-fang, WU Liang-min. PTS Phase Search with Symmetrical Dual Binary Tree[J]. Journal of Applied Sciences, 2013, 31(3): 271-277.

References

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PTS Phase Search with Symmetrical Dual Binary Tree

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