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In this paper we evaluate the effect of applying peak-to-average power ratio (PAPR) reduction and digital pre-distortion (DPD) on radio frequency power amplifiers when an orthogonal frequency division multiplexing (OFDM) signal is used. The PAPR reduction method, presented as a convex problem, is based on reshaping the time domain signal by redistributing its energy in the frequency domain, with respect...
Recently a number of polar transmitters for the multi-mode transmission of Wireless-Local-Area-Network (WLAN) and Bluetooth signals have been proposed. These polar transmitters use envelope modulators based on digital-to-analog converters (DACs) as power amplifiers. Such an approach is very useful when the maximum theoretical efficiency of the power-amplifier digital-to-analog converter (PA-DAC) is...
We present new Gbps orthogonal frequency division multiplexing (OFDM) physical layers and performance evaluations for applications of 60-GHz wireless local area network (WLAN). They are designed to operate in 57-66 GHz unlicensed frequency band with the possibility to use different channel bandwidth and to promise full compatibility to the channel plan that most 60-GHz standard groups have employed...
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