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Power Control Optimization Method for Transmitted Signals in OFDM Communication Systems

  • Jing Gao
  • Xiaochen Ding
  • Xin Song
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9377)

Abstract

Orthogonal frequency division multiplexing (OFDM) introduces large peak power of transmitted signals in time, which can result in significant signal distortion in the presence of nonlinear amplifiers. Partial transmit sequence (PTS) are well-known techniques for peak-power reduction in OFDM.  However, the exhaustive search of phase factors in conventional PTS causes high computational complexity. In this paper, we present a suboptimal strategy for combining partial transmitted sequences that achieve good balance between computational complexity and power control performance. The simulation results show that the proposed algorithm can not only reduces the PAPR significantly, but also decreases the computational complexity

Keywords

OFDM Peak Power PAPR PTS 

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Copyright information

© Springer International Publishing Switzerland 2015

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Authors and Affiliations

  1. 1.School of Information Science and EngineeringNortheastern UniversityShenyangChina

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