Pilot Symbol Design for Peak to Average Power Reduction in OFDM Systems
نویسندگان
چکیده
منابع مشابه
OFDM 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...
متن کاملPeak to Average Power Reduction Technique in OFDM System
In this paper, OFDM based on Software-Defined Radio (GNU Radio) to reducing the peak to average power ratio is developed and tested. Orthogonal frequency-division multiplexing (OFDM) is a method of encoding digital data on multiple carrier frequencies. OFDM has developed into a popular scheme for wideband digital communication, whether wireless or over copper wires, used in applications such as...
متن کاملOFDM Peak-to-Average Power Reduction Scheme with Spectral Masking
Clipping and filtering can be a simple and effective method of reducing the peak-to-average power ratio (PAPR) for an orthogonal frequency division multiplexed (OFDM) signal. To be effective the clipping must be performed on an oversampled version of the time domain signal, but this results in out-ofband (OOB) power. It has previously been shown that the OOB signals can be filtered out using a ...
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The high peak-to-average power ratio is a major drawback of OFDM systems. Many PAPR reduction techniques have been proposed in the literature, among them a method that uses a subset of tones that do not carry any data, but are modulated such that the PAPR of the resulting time domain signal is minimized. Another problem of OFDM systems is the high out-of-band power caused by the sidelobes of th...
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ژورنال
عنوان ژورنال: Proceedings of the ISCIE International Symposium on Stochastic Systems Theory and its Applications
سال: 2010
ISSN: 2188-4730,2188-4749
DOI: 10.5687/sss.2010.100