Results 171 to 180 of about 26,554 (242)

Bio inspired multi agent system for distributed power and interference management in MIMO OFDM networks. [PDF]

Sci Rep
Kanmani R, Praveena SM.
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Effects of Distance, Noise, and Personal Respiratory Protective Equipment on Speech Comprehension in Simulated Critical Care Setting. [PDF]

Healthcare (Basel)
Rojo-Rojo A, Martínez-Abril JE, Muñoz-Rubio GM, Iniesta-Cortés P, Cánovas-Pallarés JM.   +4 more
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Photonic-electronic arbitrary-waveform generation using quadrature multiplexing and active optical-phase stabilization. [PDF]

Nat Commun
Füllner C, Sherifaj A, Henauer T, Fang D, Drayss D, Schmitz L, Harter T, Gutema TZ, Zwick T, Freude W, Randel S, Koos C.   +11 more
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A 3.2-3.6 GHz GaN Doherty Power Amplifier Module Based on a Compact Low-Loss Combiner. [PDF]

Micromachines (Basel)
Wang X, Wang D, Li W, Lv X, Cui K, Liu H, Kang K.   +6 more
europepmc   +1 more source

Wireless Communications: Signal Processing Perspectives. [PDF]

Entropy (Basel)
Roy S.
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Peak to Average Power Ratio (PAPR) Reduction in OFDM System

2006 International RF and Microwave Conference, 2006
Orthogonal Frequency Division Multiplexing (OFDM) is a special form of multi-carrier modulation which is robust against the multipath effect, Intersymbol Interference (ISI) and high spectral efficiency. However, Peak to Average Power Ratio (PAPR) is a major drawback in the system since this leads to the distortion problem in the linear devices such as ...
N. N. Nik Abd Malik, N. Ngajikin, S. M. Idrus, N. D. Abdul Latif   +3 more
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Constant Modulus Algorithm for Peak-to-Average Power Ratio (PAPR) Reduction in MIMO OFDM/A

IEEE Signal Processing Letters, 2013
A new peak-to-average power ratio (PAPR) reduction approach for MIMO-OFDM/A is developed based on the well-known constant modulus algorithm (CMA). This combines two ideas: 1) time domain signals from “resource blocks” (consisting of several subcarriers) may be linearly combined using precoding weights, transparent to the receiver; 2) the precoding ...
S. Khademi, A. van der Veen
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Precoding technique for peak-to-average-power-ratio (PAPR) reduction in MIMO OFDM/A systems

2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2012
The paper develops a new technique to reduce the peak to average power ratio (PAPR) in OFDM modulation for a MIMO system. The proposed method exploits the eigen-beamforming mode (EM) in MIMO systems which is a common feature in 4th generation standards: WiMAX and LTE.
Seyran Khademi, Alle-Jan Van der Veen, Thomas Svantesson   +2 more
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Peak to average power ratio (PAPR) reduction in OFDM systems

International Multi Topic Conference, 2002. Abstracts. INMIC 2002., 2002
Summary form only given, as follows. One of the main limitations of OFDM systems is that it exhibits high Peak to Average Power Ratio (PAPR). It is desirable to reduce it as high PAPR causes saturation in power amplifiers thus leading to inter-modulation products among the sub carriers.
A. Latif
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