Enhanced OFDM Performance with Pilot-Aided Reduced Peak-to-Average Power Ratio
نویسندگان
چکیده
منابع مشابه
Pcc-ofdm with Reduced Peak-to-average Power Ratio
Polynomial cancellation coded orthogonal frequency division multiplexing (PCC-OFDM) with overlapping symbol periods is a modulation technique which overcomes many of the disadvantages of OFDM. PCCOFDM is much less sensitive to frequency offset and Doppler spread than OFDM. PCC-OFDM like OFDM has a high peak-to-average power ratio (PAPR). In this paper it is shown that the PAPR can be reduced wi...
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This paper presents the extension of vector precoding, a generalization of the nonlinear TomlinsonHarashima precoding, with a PAPR (peak-to-average power ratio) reduction technique for the downlink of OFDM systems. The proposed algorithm exploits alternative transmit sequences arising from vector precoding to reduce the peak power in the time-domain baseband transmit signal. The operation is co...
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High peak to average power ratio of the transmit signal is a major drawback of OFDM systems. After defining the PAPR and analyzing its statistical properties, some of the most representative PAPRreduction techniques available in the literature are reviewed in detail. Several methods have been proposed to reduce the peak power of OFDM signals. In this paper the effectiveness of some recently pro...
متن کاملOFDM Peak-to-Average-Power-Ratio Reduction in WiMAX Systems
Acknowledgement This master thesis is defined by ArrayComm company in U.S, California, San Jose. The project is a collaboration between the company and Chalmers. I would like to show my gratitude to certain people: Dr. Thomas Svantesson from ArrayComm-for giving me this opportunity and also your great guidance and help during the project. Professor Mats Viberg-for introducing me to the right pe...
متن کاملPeak-to-Average Power Ratio Reduction Techniques for OFDM Signals
Orthogonal frequency division multiplexing (OFDM) has been adopted as a standard for many modern wireless applications requiring high data rate due to bandwidth efficiency, resistance to frequency selective fading and simple digital realization using IFFT/FFT operations. However, physical implementation of the OFDM system suffers from several difficulties. One of the major limitations of OFDM i...
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ژورنال
عنوان ژورنال: Journal of Signal Processing
سال: 2017
ISSN: 1342-6230,1880-1013
DOI: 10.2299/jsp.21.1