A novel approach for improving carrier frequency offset tracking performance of frequency domain channel equalizer employed in OFDM systems
- Resource Type
- Conference
- Authors
- Ayduslu, Emre; Toren, Onur Dursun; Aydin, Yucel; Ozen, Ali
- Source
- 2017 40th International Conference on Telecommunications and Signal Processing (TSP) Telecommunications and Signal Processing (TSP), 2017 40th International Conference on. :190-194 Jul, 2017
- Subject
- Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineering Profession
Fields, Waves and Electromagnetics
General Topics for Engineers
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
OFDM
Discrete wavelet transforms
Frequency-domain analysis
Receivers
Modulation
WHT-OFDM
DWT-OFDM
DWT-WHT-OFDM
Frequency Domain Channel Equalizer
CFO Tracking
- Language
A new approach based on discrete wavelet transform (DWT) and Walsh Hadamard transform (WHT) for improving carrier frequency offset (CFO) tracking performance of the multi carrier communication systems has been proposed in this paper. The proposed DWT-WHT technique has been applied to frequency domain channel equalizer (FDE) employed in orthogonal frequency division multiplexing (OFDM) systems. Computer simulations have been performed to verify the performance of the proposed method in stationary and non-stationary frequency selective Rayleigh fading channels. The obtained simulation results using HIPERLAN/2 (IEEE 802.11a) physical layer specifications have demonstrated that the proposed DWT-WHT-OFDM method is outperforming the CFO tracking performances of conventional OFDM, WHT-OFDM and DWT-OFDM techniques, and is removing the error floor.