Results 41 to 50 of about 5,546,675 (248)
The Noncoherent Rician Fading Channel -- Part II : Spectral Efficiency in the Low-Power Regime [PDF]
, 2005 Transmission of information over a discrete-time memoryless Rician fading channel is considered where neither the receiver nor the transmitter knows the fading coefficients.
Gursoy, Mustafa Cenk +2 more
core +2 more sources
Power requirements for high-average power FELs
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1995 Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 358 (1-3) : ABS81, 1995 The article of record as published may be found at https://doi.org/10.1016/0168-9002(94)01586 ...
Lyon, R.A., Colson, W.B.
openaire +2 more sources
Thulium-doped all-PM fiber chirped pulse amplifier delivering 314 W average power
High Power Laser Science and Engineering, 2023 A high-power all polarization-maintaining (PM) chirped pulse amplification (CPA) system operating in the 2.0 μm range is experimentally demonstrated. Large mode area (LMA) thulium-doped fiber (TDF) with a core/cladding diameter of 25/400 μm is employed ...
Bo Ren +5 more
doaj +1 more source
Peak to average power ratio based spatial spectrum sensing for cognitive radio systems [PDF]
, 2017 The recent convergence of wireless standards for incorporation of spatial dimension in wireless systems has made spatial spectrum sensing based on Peak to Average Power Ratio (PAPR) of the received signal, a promising approach.
Ghafoor, Abdul +2 more
core +1 more source
, 2017 This paper studies energy efficiency (EE) and average throughput maximization for cognitive radio systems in the presence of unslotted primary users. It is assumed that primary user activity follows an ON-OFF alternating renewal process.
Gursoy, M. Cenk +2 more
core +1 more source
Power Allocation Based on SEP Minimization in Two-Hop Decode-and-Forward Relay Networks [PDF]
, 2011 The problem of optimal power allocation among the relays in a two-hop decode-and-forward cooperative relay network with independent Rayleigh fading channels is considered.
Arash Khabbazibasmenj +3 more
core +1 more source
Multiattribute Decision-Making Method Based on Hesitant Triangular Fuzzy Power Average Operator
Advances in Fuzzy Systems, 2022 In the decision-making process, it often happens that decision makers hesitate between several possible preference values, so the multiattribute decision-making (MADM) problem of hesitant triangle fuzzy elements (HTFEs) has been widely studied.
Dongping Pu, Mingliang Yu, Guanghui Yuan
doaj +1 more source
IEEE Access, 2019 This paper presents a two-stage stacked power amplifier integrated circuit (PAIC) for broadband and high efficiency using a 2-μm InGap/GaAs HBT process with a second-harmonic control circuit and a bias-switching circuit for an average power ...
Wooseok Lee +10 more
doaj +1 more source
Air-clad chirally-coupled-core Yb-fiber femtosecond oscillator with >10W average power
EPJ Web of Conferences, 2013 We demonstrate high-power (> 10 W), 300-fs mode-locked oscillators at 83-MHz repetition rate using air-clad Chirally-Coupled-Core Yb-fiber with 37-µm central-core diameter, corresponding to a 30-µm mode-field-diameter.
Ma Xiuquan +5 more
doaj +1 more source
HEAT PUMP AND AIR CONDITIONING GRADING SYSTEMS AND METHODS [PDF]
, 2019 An expectation module determines an expected average power consumption of a heat pump for a predetermined period as a function of indoor and outdoor temperatures of the building during the predetermined period.
Alsaleem, Fadi Mohammad
core +1 more source