Optimized Iterative Clipping and Filtering for PAPR Reduction of OFDM Signals

  title={Optimized Iterative Clipping and Filtering for PAPR Reduction of OFDM Signals},
  author={Y.-C. Wang and Z.-Q. Luo},
  journal={IEEE Transactions on Communications},
  • Y. Wang, Z. Luo
  • Published 2011
  • Computer Science
  • IEEE Transactions on Communications
Iterative clipping and filtering (ICF) is a widely used technique to reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals. However, the ICF technique, when implemented with a fixed rectangular window in the frequency-domain, requires many iterations to approach specified PAPR threshold in the complementary cumulative distribution function (CCDF). In this paper, we develop an optimized ICF method which determines an optimal frequency response… 

Figures from this paper

Simplified Approach to Optimized Iterative Clipping and Filtering for PAPR Reduction of OFDM Signals
Simulation results show that after three iterations, the original OICF algorithm can achieve the desired PAPR while the simplified one exhibits almost the same performance.
On the Optimization of Iterative Clipping and Filtering for PAPR Reduction in OFDM Systems
This paper applies an adaptive clipping threshold to the LM scheme to improve the performance of the simplified OICF (SOICF) and shows significant reduction of the PAPR problem compared with the earlier SOICF scheme albeit with some degradation in the bit error ratio performance.
A New Approach to Iterative Clipping and Filtering PAPR Reduction Scheme for OFDM Systems
This work introduces a uniform distribution approach to solving the PAPR reduction problem of OFDM signals and uses Lagrange multiplier (LM) optimization to minimize the number of iterations involved in an adaptive fashion.
PAPR Reduction of OFDM Signal via Custom Conic Optimized Iterative Adaptive Clipping and Filtering
An efficient custom optimized adaptive clipping and filtering technique is proposed that shows a greater reduction in PAPR in lesser iterations with reduced out-of-band distortion and bit error rate when compared over classical clipping techniques.
A Novel Clipping and Filtering Algorithm Based on Noise Cancellation for PAPR Reduction in OFDM Systems
Iterative clipping and filtering is an effective technique to achieve peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems, but requires numerous…
Distortion Compensated Optimized ICF Technique for PAPR Reduction in OFDM
This work proposes the distortion compensated optimized ICF technique, in which the distortion due to clipping is encoded as clipping information and is transmitted in the next block and in the receiver, the in-band distortion is compensated by the clipping information.
Iterative companding transform and filtering for reducing PAPR of OFDM signal
Simulations show that compared to the classic Iterative Clipping and Filtering (ICF) technique, ICTF can dramatically decrease the number of required iterations to reach the desired PAPR with low complexity.
An Enhanced Iterative Clipping and Filtering Method Using Time-Domain Kernel Matrix for PAPR Reduction in OFDM Systems
An efficient P APR reduction method that uses the time-domain kernel matrix to generate the PAPR-reduction signal and employs the curve fitting approach to optimize the corresponding scaling factors is developed.
Iterative Clipping-Noise Compression Scheme for PAPR Reduction in OFDM Systems
Clip and noise compression is adopted to replace the calculation of PAPR-reduction vector in each iteration of SOICF to reduce the amount of information lost, resulting in better BER performance.
Iterative Clipping and Filtering Technique for PAPR Reduction in OFDM System without Encoding
This paper proposes iterative clipping and filtering technique without encoding technique that clipped the amplitude of the OFDM signal, which reduces more PAPR of OFDM system after 1 or 2 iteration, Whereas classical ICF method require 8 to 16 iteration for reducing the same level of P APR reduction.


A simplified clipping and filtering technique for PAR reduction in OFDM systems
This letter analyzes the conventional clipping and filtering using a parabolic approximation of the clipping pulse to get a new clip and filtering technique that obtains the same PAR reduction as that of the existing iterative techniques with 2K+1 FFT/IFFT operations, where K represents the number of iterations.
Convex Optimization Method for Quasi-Constant Peak-to-Average Power Ratio of OFDM Signals
  • Y. Wang, K. Yi
  • Computer Science
    IEEE Signal Processing Letters
  • 2009
A new convex optimization strategy to both reduce the peak-to-average power ratio (PAPR) and the PAPR variance of orthogonal frequency-division multiplexing (OFDM) symbols is devised.
Error Vector Magnitude Optimization for OFDM Systems With a Deterministic Peak-to-Average Power Ratio Constraint
A low-complexity customized interior-point algorithm is developed to solve the optimization problem of Orthogonal frequency division multiplexing as an EVM optimization task subject to a deterministic PAR constraint and a spectral mask constraint.
Minimizing the Peak-to-Average Power Ratio of OFDM Signals Using Convex Optimization
This paper shows that the OFDM signal with globally minimum PAR, subject to constraints on the allowed constellation error and the free carrier power, can be efficiently computed using convex optimization.
Peak-to-average power reduction for OFDM by repeated clipping and frequency domain filtering
It is shown that repeated clipping and frequency domain filtering of an orthogonal frequency division multiplexing (OFDM) signal can significantly reduce the peak-to-average power ratio (PAPR) of the…
Par reduction in OFDM through convex programming
  • Chao Ching Wang, S. Leung
  • Computer Science
    2008 IEEE International Conference on Acoustics, Speech and Signal Processing
  • 2008
A new active constellation extension (ACE) based convex optimization algorithm is presented which reduces PAR through convex programming and greatly reduces the complexity and keeps the bit-error-rate (BER) performance.
An overview of peak-to-average power ratio reduction techniques for multicarrier transmission
Some of the important PAPR reduction techniques for multicarrier transmission including amplitude clipping and filtering, coding, partial transmit sequence, selected mapping, interleaving, tone reservation, tone injection, and active constellation extension are described.
An introduction to convex optimization for communications and signal processing
  • Z. Luo, Wei Yu
  • Computer Science
    IEEE Journal on Selected Areas in Communications
  • 2006
This tutorial gives an interpretation of Lagrangian duality in a multiuser multi-antenna communication problem; it illustrates the role of semidefinite relaxation inMultiuser detection problems; and methods to formulate robust optimization problems via second-order cone programming techniques are reviewed.
Multicarrier modulation for data transmission: an idea whose time has come
  • J. Bingham
  • Computer Science
    IEEE Communications Magazine
  • 1990
The general technique of parallel transmission on many carriers, called multicarrier modulation (MCM), is explained. The performance that can be achieved on an undistorted channel and algorithms for…