Results 11 to 20 of about 555,563 (301)

Joint optimization of power, electricity cost and delay in IP over WDM networks [PDF]

open access: yes, 2013
In this paper, we investigate the joint optimization of power, electricity cost and propagation delay in IP over WDM networks employing renewable energy.
Dong, X, Elgorashi, TEH, Elmirghani, JMH
core   +1 more source

A Generalized Framework on Beamformer Design and CSI Acquisition for Single-Carrier Massive MIMO Systems in Millimeter Wave Channels [PDF]

open access: yes, 2016
In this paper, we establish a general framework on the reduced dimensional channel state information (CSI) estimation and pre-beamformer design for frequency-selective massive multiple-input multiple-output MIMO systems employing single-carrier (SC ...
Ayanoglu, Ender, Guvensen, Gokhan M.
core   +2 more sources

Investigating the relation between optimum guard interval and channel delay spread for a MC-CDMA system [PDF]

open access: yes, 2012
This paper demonstrates a novel approach to determining the optimum guard interval for a multicarrier code division multiple access (MC-CDMA) system. Analytical expressions for useful and interference power are derived as a basis for comparison.
Gokalp, H, Kurnaz, C
core   +1 more source

Vehicle-to-Vehicle Radio Channel Characteristics for Congestion Scenario in Dense Urban Region at 5.9 GHz

open access: yesInternational Journal of Antennas and Propagation, 2018
This paper reports the results of a car-following measurement of the wireless propagation channel at 5.9 GHz on a seriously congested urban road in Wuhan, China.
Yishui Shui   +6 more
doaj   +1 more source

Measurement-Based Massive MIMO Polarimetric Channel Characterization in Outdoor Environment

open access: yesIEEE Access, 2019
This paper introduces a measurement campaign to investigate the characteristics of massive multiple-input multiple-output (MIMO) channels in both line-of-sight (LoS) and obstructed LoS suburban outdoor environments.
Le Hao   +3 more
doaj   +1 more source

The industrial indoor channel: Statistical analysis of the power delay profile [PDF]

open access: yesAEU - International Journal of Electronics and Communications, 2010
Abstract In this letter, measurements of the industrial power delay profile are presented. Measurements are performed through frequency-domain channel sounding in the range from 800 MHz to 4 GHz and by using the virtual antenna array method. Received power as a function of delay clearly exhibits clustering and is for this reason fitted to the well ...
Tanghe, Emmeric   +4 more
openaire   +2 more sources

Hidden Markov models for radio localization in mixed LOS/NLOS conditions [PDF]

open access: yes, 2007
—This paper deals with the problem of radio localization of moving terminals (MTs) for indoor applications with mixed line-of-sight/non-line-of-sight (LOS/NLOS) conditions.
Carlo Morelli   +4 more
core   +1 more source

Effects of adaptative equalization [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2009
In this paper, we present the effects ofequalization techniques with CQPSK modulation.Results are based on Monte Carlo simulations with amodel of the generated received signal which dependon the power delay profile characteristics.
Morgoş Lucian, Popa Sorin
doaj  

Photoionization Suppression by Continuum Coherence: Experiment and Theory [PDF]

open access: yes, 1999
We present experimental and theoretical results of a detailed study of laser-induced continuum structures (LICS) in the photoionization continuum of helium out of the metastable state 2s $^1S_0$.
Bergmann, K.   +3 more
core   +2 more sources

60-GHz Millimeter-Wave Propagation Inside Bus: Measurement, Modeling, Simulation, and Performance Analysis

open access: yesIEEE Access, 2019
Millimeter-wave (mmWave) transmission over the unlicensed 60-GHz spectrum is a potential solution to realize high-speed internet access, even inside mass transit vehicles.
Aniruddha Chandra   +6 more
doaj   +1 more source

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