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Search results for: interference
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Year: 2014, Volume: 14, Number: 1
... differing conventional D2D systems when the location of the relay user from the aspect of interference suppression mechanism, and changes within the threshold. focus on the relay-aided D2D ... denote the additive noise plus other where I well is the maximum average mutual information interferences, which are i.i.d. zero-mean circular symmetric between input and output, and ...
Year: 2019, Volume: 19, Number: 1
... transmitter (SUT) has perfect knowledge of the CSI of the efficiently and avoid interference to the primary user (PU) link between PU transmitter (PUT) ... and Rician fading channels are significantly improved for the Nevertheless, SDMA suffers from the signal-to-interference proposed study. Finally, we optimize the power allocation of plus noise ratio ...
Year: 2011, Volume: 11, Number: 2
... signals and including their modulation (BPPM) scheme in the presence of a multi-user interference (MUI). The derived expression is validated with antipodal version which overall ... Tc € d l( k ) ), (1) transmission and anti-interference characteristics. Therefore where E s is the energy per symbol, N s ...
Year: 2012, Volume: 12, Number: 1
... , in which the inter- applications generally requires that sensor nodes are densely cluster interference caused by the border nodes is solved by the and evenly deployed so as ... Spectrum (DS- SS) code, a CDMA-like scheme, to avoid such interferences. A. Sensor Node Clustering It is not applicable in the context of ...
Year: 2014, Volume: 14, Number: 3
... field which needs to be reviewed [1-5]. As we know, the interference in the process of power The purpose of network topology identification of power transmission ... and Distribution Management System (DMS) and provides paper, we have demonstrated the anti-interference capability parameter information of power grid topological structure of fault discrimination method. In ...
Year: 2020, Volume: 20, Number: 3
... done since database used, total beat equivalently useful in reducing P and T waves interference and analyzed, QRS frequency range selected, signal processing produced similar output of ... processing in most R-peak detection algorithms. It reduces the noise, muscle and powerline interferences at high according to a study done in 2010 [27]. The ...
Year: 2009, Volume: 9, Issue: 2
... can obviate the need for an "intentional" filter. Mains EMI (electromagnetic interference) not concerned with them. filters carry potentially high currents at dangerously high ... loss, conducted emissions, P2 V2 frequency analysis, attenuation I. INTRODUCTION Electromagnetic interferences (EMI) represent perturba- tions exceeding the maximal values allowed by standards ...
Year: 2011, Volume: 11, Number: 1
... unwanted noise and Figure 1. Geometry and global coordinate system of D ‚ E interference, thereby improving the quality of desired signal. cylindrical conformal array. There ... output with 4 elements spaced at a half wavelength apart. € 9, interference-plus-noise power while maintaining a € 0.01/ 3m, L € / ...
Year: 2021, Volume: 21, Number: 4
... and back learning was used for The use of SWT can reduce the noise signal interference, optimization. These hyperparameters include the number of remove the impact of useless ... the capacity of noise on the sequence prediction, while improving the 1 robustness and anti-interference ability of the model. The This research was supported partly by the National ...
20. A Study on LoRa Signal Propagation Models in Urban Environments for Large-scale Networks Deployment
Year: 2021, Volume: 21, Number: 4
... LoRa signal coverage, Internet of Things, urban areas, chirp modulation, radiofrequency interference. Figure 1. Number of sensors globally connected in the IoT network I ... technical specifications may be seen in Table I. band may be assigned, avoiding interferences between the TABLE I. LORA SPECIFICATIONS FOR US AND EU connected devices. ...
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