基于DSI方法的粒子群优化OFDM系统中PAPR的降低

2010 International Conference on Broadband, Wireless Computing, Communication and Applications Pub Date : 2010-11-04 DOI:10.1109/BWCCA.2010.147

Shu-Hong Lee, Ho-Lung Hung

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引用次数: 2

摘要

虚拟序列插入(DSI)结构是一种不带侧信息、不改变信号形状的降低正交频分复用(OFDM)信号峰均功率比的方法。提高其性能的关键是创建更合格的虚拟序列。本文将粒子群优化(PSO)算法应用于DSI方案，以更有效地缓解OFDM系统中的PAPR问题。仿真结果表明，该方法优于采用互补序列作为虚拟序列的方法。

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Particle Swarm Optimization on DSI Method for PAPR Reduction in OFDM Systems

Dummy sequence insertion (DSI) structure is a method without side information and changing signal shape to reduce peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signal. The key to enhance its performance is creating more qualified dummy sequence. In this paper, particle swarm optimization (PSO) algorithm is applied to DSI scheme to more effectively mitigate the PAPR problem in OFDM systems. Simulation results show that the proposed method is superior to that of adopting complementary sequence as dummy sequence one.

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2010 International Conference on Broadband, Wireless Computing, Communication and Applications

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