Indian Journal of Science and Technology

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Performance Improvement of Orthogonal Frequency Division Multiplexing System by Reducing Peak to Average Power Ratio using FDCSS (Frequency Domain Cyclic Shift Sequence) Combined with SLM and Clipping Technique


Affiliations
1 School of ECE Lovely Professional University, Jalandhar-Delhi, G.T. Road, National Highway 1,Phagwara, Jalandhar – 144411, Punjab, India
2 Department of ECE, Guru Nanak Dev Engineering College, Gill Park, Ludhiana - 141006, Punjab,, India
3 School of ECE Lovely Professional University, Jalandhar-Delhi, G.T. Road, National Highway 1, Phagwara, Jalandhar – 144411, Punjab, India
 

Orthogonal frequency division multiplexing (OFDM) undergoes a problem known as peak to average power ratio (PAPR).Selected mapping (SLM) and clipping are the efficient techniques to diminish the PAPR. Hence, in this paper, a frequency domain cyclic shift sequence (FDCSS) based scheme combined with SLM and clipping technique is proposed for the reduction of PAPR. Careful selection of the shifting values, clipping level, and phase sequence reduces PAPR and improves the performance OFDM system. The results of this novel scheme are validated through Matlab simulations under various phase sequences, sub-carriers and shifting values.

Keywords

FDCSS (Frequency Domain Cyclic Shift Sequence), Orthogonal Frequency Division Multiplexing (OFDM), Peak to Average power Ratio (PAPR)
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  • Performance Improvement of Orthogonal Frequency Division Multiplexing System by Reducing Peak to Average Power Ratio using FDCSS (Frequency Domain Cyclic Shift Sequence) Combined with SLM and Clipping Technique

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Authors

Prabal Gupta
School of ECE Lovely Professional University, Jalandhar-Delhi, G.T. Road, National Highway 1,Phagwara, Jalandhar – 144411, Punjab, India
R. K. Singh
Department of ECE, Guru Nanak Dev Engineering College, Gill Park, Ludhiana - 141006, Punjab,, India
R. K. Singh
Department of ECE, Guru Nanak Dev Engineering College, Gill Park, Ludhiana - 141006, Punjab,, India
Balpreet Singh
School of ECE Lovely Professional University, Jalandhar-Delhi, G.T. Road, National Highway 1, Phagwara, Jalandhar – 144411, Punjab, India
Balpreet Singh
School of ECE Lovely Professional University, Jalandhar-Delhi, G.T. Road, National Highway 1, Phagwara, Jalandhar – 144411, Punjab, India
B. Arun Kumar
School of ECE Lovely Professional University, Jalandhar-Delhi, G.T. Road, National Highway 1, Phagwara, Jalandhar – 144411, Punjab, India
B. Arun Kumar
School of ECE Lovely Professional University, Jalandhar-Delhi, G.T. Road, National Highway 1, Phagwara, Jalandhar – 144411, Punjab, India

Abstract


Orthogonal frequency division multiplexing (OFDM) undergoes a problem known as peak to average power ratio (PAPR).Selected mapping (SLM) and clipping are the efficient techniques to diminish the PAPR. Hence, in this paper, a frequency domain cyclic shift sequence (FDCSS) based scheme combined with SLM and clipping technique is proposed for the reduction of PAPR. Careful selection of the shifting values, clipping level, and phase sequence reduces PAPR and improves the performance OFDM system. The results of this novel scheme are validated through Matlab simulations under various phase sequences, sub-carriers and shifting values.

Keywords


FDCSS (Frequency Domain Cyclic Shift Sequence), Orthogonal Frequency Division Multiplexing (OFDM), Peak to Average power Ratio (PAPR)



DOI: https://doi.org/10.17485/ijst%2F2016%2Fv9i48%2F136243