Reduced Complexity SLM Method for PAPR Reduction
نویسندگان
چکیده
منابع مشابه
A New SLM Algorithm with Low Complexity for PAPR Reduction in OFDM
Thepeak to avemgepwer ratio (PAPR) dishihtion of the @odic orihogonnlfi.quency division multiplexing (OFDM) dain symbol sequence is ewluated and it is shown t h a the OFDM data symbol sequence with short period is wpcted to have high PAPR. Using this result, we identr& the optimal phase sequence set and pmpse mws of a cyclic Hndamard mahu. comtrucfed by msequence as phase sequences for selected...
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Orthogonal Frequency Division Multiplexing (OFDM) is widely used as a standard modulation for various high data rate wireless communication systems. It is worked by converting high data rate streams into a number of parallel low data rate streams. OFDM has many advantages over single carrier modulation systems. Some of these advantages are robustness to frequency fading channels, high transmiss...
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High peak to average power ratio (PAPR) is one of the main drawbacks of Orthogonal Frequency Division Multiple Access (OFDMA) systems. In this paper we will introduce a PAPR reduction scheme based on selected mapping (SLM) and partial transmit sequence (PTS) techniques. The deficiency for PAPR reduction in SLM is computational complexity. We investigate one of the low complexity SLM schemes and...
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In wireless OFDM systems, a major cause for signal degradation during transmission is high Peak to Average Power Ratio (PAPR). Selected mapping (SLM) is one efficient technique which reduces the peaks of a signal considerably. One drawback associated with this technique is its computational complexity. The computational complexity is directly related to the complexity of the IFFT block and incr...
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In this paper, we introduce a new selected mapping (SLM) orthogonal frequency division multiplexing (OFDM) scheme with low computational complexity. The proposed SLM scheme transforms an input symbol sequence into a set of the time domain signals by multiplying the phase sequences to the signal after a certain intermediate stage of inverse fast Fourier transform (IFFT). Then, the OFDM signal wi...
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ژورنال
عنوان ژورنال: Journal of Engineering
سال: 2019
ISSN: 2520-3339,1726-4073
DOI: 10.31026/j.eng.2019.05.07