Peak-to-Average Power Reduction using Repeated Frequency Domain Filtering and Clipping in OFDM
نویسندگان
چکیده
منابع مشابه
Peak to Average Power Ratio Reduction in OFDM System by Clipping and Filtering
This paper results clipping and filtering technique for peak to average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM). Our simulation results show that this technique removes inband and out of band distortion along with 1dB reduction in peak to average power ratio when crest ratio changes from 1.4 to 1.2. KeywordsClipping, Crest ratio, Orthogonal frequency di...
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The high Peak to Average Power Ratio (PAPR) is a serious drawback of the Orthogonal Frequency Division Multiplex (OFDM). In this paper, the advantages of two different approaches to PAPR reduction are exploited in order to reduce the PAPR more significantly. The first approach is based on clipping and provides a high PAPR reduction at the cost of signal distortion. The second approach (selectiv...
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Wireless communications have been developed widely and rapidly in the modern world especially during the last decade. Orthogonal Frequency Division Multiplexing (OFDM) has grown to a popular communication technique for high speed communication. Besides of the advantages, one of main disadvantage of OFDM is high peak to average power ratio (PAPR). In this paper, a PAPR reduction method is propos...
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Orthogonal Frequency Division Multiplexing (OFDM) is a very attractive digital transmission method developed to meet the increasing demand for higher data rates in communications which can be used in both wired and wireless environments. OFDM consist of large number of independent subcarriers, as a result of which the amplitude of such a signal can have high peak values. High peak to average po...
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Day by day increasingly, new types of wireless devices are being introduced. These devices have access to the internet. Thus the spectral efficiency of the current network needed to be improved. For this OFDM signals are introduced. In this paper, we propose to discuss the technique to reduce the peak to average power ratio for an OFDM signal, so that it can be used further. Also different tech...
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ژورنال
عنوان ژورنال: International Journal of Computer Applications
سال: 2015
ISSN: 0975-8887
DOI: 10.5120/21742-4958