Amplitude and Sign Adjustment for Peak-to-Average-Power Reduction
نویسندگان
چکیده
منابع مشابه
Peak-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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Orthogonal Frequency Division Multiplexing (OFDM) is one of the modulation techniques used in digital video broadcasting systems. A significant disadvantage of OFDM is that it has a high peak-to-average power ratio (PAPR). This means that the output amplifiers of digital television transmitters must be designed to handle signals that are far in excess of the mean levels. These amplifiers are ex...
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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 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...
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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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ژورنال
عنوان ژورنال: IEEE Transactions on Communications
سال: 2005
ISSN: 0090-6778
DOI: 10.1109/tcomm.2005.852830