Performance evaluation of PAPR in OFDM system using median codeword shift and hybrid median codeword shift method / Mohd Danial Rozaini …[et al.]

Rozaini, Mohd Danial and Idris, Azlina and Mohd Ali, Darmawaty and Abdullah, Ezmin (2019) Performance evaluation of PAPR in OFDM system using median codeword shift and hybrid median codeword shift method / Mohd Danial Rozaini …[et al.]. Journal of Electrical and Electronic Systems Research (JEESR), 14. pp. 61-67. ISSN 1985-5389

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Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is the solutions to the current demand for a system having high data rate, capable to improve spectral efficiency and have the immunity against frequency selective fading. However, high peak to average power ratio (PAPR) is the major issue faced by every multicarrier modulation technique including OFDM systems. This paper presents a Median Codeword Shift (MCS) method, which is based on Selective Codeword Shift (SCS) scheme, to overcomes the PAPR problem in OFDM system. The manipulation of codeword structure and permutation process is the key to achieve better PAPR reduction in MCS method. In addition, the hybrid version of MCS is also being proposed by combining MCS with companding technique to further improve the PAPR performance. The simulation results show that MCS overcomes conventional OFDM and SCS with 24% improvement and 0.5 dB difference from SCS. The hybrid MCS also managed to achieve outstanding result with average of 74.4% improvement with tolerable degradation in BER performance.

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Item Type: Article
Creators:
Creators
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Rozaini, Mohd Danial
UNSPECIFIED
Idris, Azlina
UNSPECIFIED
Mohd Ali, Darmawaty
UNSPECIFIED
Abdullah, Ezmin
UNSPECIFIED
Subjects: H Social Sciences > HF Commerce > Personnel management. Employment management > Performance standards
H Social Sciences > HF Commerce > Personnel management. Employment management > Performance technology
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Electrical Engineering
Journal or Publication Title: Journal of Electrical and Electronic Systems Research (JEESR)
UiTM Journal Collections: UiTM Journal > Journal of Electrical and Electronic Systems Research (JEESR)
ISSN: 1985-5389
Volume: 14
Page Range: pp. 61-67
Official URL: https://jeesr.uitm.edu.my
Item ID: 48805
Uncontrolled Keywords: Codeword, Companding, Median Codeword Shift (MCS)
URI: https://ir.uitm.edu.my/id/eprint/48805

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48805

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