VHDL implementation of an optimized 8-point FFT/IFFT processor in pipeline architecture for OFDM systems

2011 ◽  
Author(s):  
Mounir Arioua ◽  
Said Belkouch ◽  
Mohamed Agdad ◽  
Moha M'rabet Hassani
Keyword(s):  
Ofdm Systems ◽  
Pipeline Architecture ◽  
Vhdl Implementation

A Variable-Length FFT Processor Base on Mixed-Radix Algorithm for PAPR Reduction in OFDM Systems

2012 ◽  
Vol 588-589 ◽  
pp. 826-829
Author(s):  
Xiang Bin Meng ◽  
Jin Xiang Wang ◽  
Hai Long Yan
Keyword(s):  
Communication Systems ◽  
Orthogonal Frequency Division Multiplexing ◽  
Cmos Technology ◽  
Variable Length ◽  
Papr Reduction ◽  
Path Delay ◽  
Ofdm Systems ◽  
Pipeline Architecture ◽  
Fft Processor ◽  
Single Path

An attractive technique of variable-length Fast Fourier transform (FFT) processor is proposed for PAPR reduction in orthogonal frequency division multiplexing (OFDM) systems. Mixed-radix algorithm and single path delay feedback (SDF) pipeline architecture is adopted to obtain low computation complexity and preferable flexibility for its VLSI implementation. The FFT processor can be reconfigured as 512, 1024, 2048, 4096-points, moreover, the only one RAM unit is used for store sine/cosine tables. The chip is mapped to the 0.18 CMOS technology and the core area is 7.896mm2. The experiment results show that the proposed FFT processor is suitable for PAPR reduction in OFDM communication systems.

Joint Blind Estimation of Channel Length and Noise Variance in OFDM Systems

2011 ◽  
Vol E94-B (12) ◽  
pp. 3614-3617
Author(s):  
Bin SHENG ◽  
Pengcheng ZHU ◽  
Xiaohu YOU
Keyword(s):  
Channel Length ◽  
Blind Estimation ◽  
Ofdm Systems ◽  
Noise Variance

Pilot Cluster ICI Suppression in OFDM Systems Based on Coded Symbols

2018 ◽  
Vol E101.B (11) ◽  
pp. 2320-2330
Author(s):  
Yong DING ◽  
Shan OUYANG ◽  
Yue-Lei XIE ◽  
Xiao-Mao CHEN
Keyword(s):  
Ofdm Systems

PTS-Based PAPR Reduction by Iterative p-Norm Minimization without Side Information in OFDM Systems

2018 ◽  
Vol E101.B (3) ◽  
pp. 856-864 ◽  
Author(s):  
Moeko YOSHIDA ◽  
Hiromichi NASHIMOTO ◽  
Teruyuki MIYAJIMA
Keyword(s):  
Side Information ◽  
Papr Reduction ◽  
Ofdm Systems ◽  
Norm Minimization

Channel Estimation and Symbol Detection with ICI Cancellation Based on Superimposed Training for OFDM Systems

2012 ◽  
Vol E95.B (9) ◽  
pp. 2926-2930
Author(s):  
Qinjuan ZHANG ◽  
Muqing WU ◽  
Qilin GUO ◽  
Rui ZHANG ◽  
Chao Yi ZHANG
Keyword(s):  
Channel Estimation ◽  
Ofdm Systems ◽  
Superimposed Training ◽  
Symbol Detection ◽  
Ici Cancellation
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