In this contribution, the optimized deployment of both spectrum and energy resources scarcely available in the mobile multiple access systems has been analyzed, with special attention to the impact of the filter design on the energy efficiency (EE) of code division multiple access (CDMA) networks. Putting into perspective two conflicting metrics, namely throughput maximization and power consump...

Orthogonal Frequency Division Multiplexing (OFDM) faces the Peak-to-Average Power Ratio (PAPR) problem that is a main disadvantage in multicarrier transmission system. Here in this paper an attempt is made to improve the spectrum efficiency (SE), and energy efficiency (EE) in orthogonal frequency division multiplexing (OFDM) systems, Simulation results show that the OFDM system with PAPR reduct...

—Energy Efficiency (EE) of cellular networks has received considerable attention recently. However, EE of relayassisted cellular networks has not been thoroughly addressed, especially that the MBSs adopt multi-antenna. In this paper, considering downlink transmission of multi-antenna relayassisted cellular network where the MBSs and RSs are deployed in the Euclidean plane according to independ...

This paper considers a single-cell massive multipleinput multiple-output (MIMO) system equipped with a base station (BS) that uses one-bit quantization and investigates the energy efficiency (EE) and spectral efficiency (SE) trade-off. We first propose a new precoding scheme and downlink power allocation strategy that results in uplink-downlink SINR duality for one-bit MIMO systems. Taking into...

Background: The measure of Expressed Emotion (EE) has been extensively used for the investigation of family interaction in different clinical populations. However, very few clinical data exist which clarify the nature of the relationship between family EE and eating disorders, as well as the prognostic value of the EE variables.Objective: The purpose of this study is to determine if family EE p...

Objective: To measure the energy expenditure (EE) of critically ill patients and to determine the adequacy of energy intake in terms of nitrogen balance. Research Methods & Procedures: Indirect calorimetry was performed in 17 critically ill patients under mechanical ventilation in order to calculate EE, and 24 h urinary nitrogen excretion was determined in order to calculate the nitrogen balanc...

We propose an energy efficient combination design for OFDM systems based on selected mapping (SLM) and clipping peak-to-average power ratio (PAPR) reduction techniques, and show the related energy efficiency (EE) performance analysis. The combination of two different PAPR reduction techniques can provide a significant benefit in increasing EE, because it can take advantages of both techniques. ...

Abstract The purpose of this work is to characterize the diffuse Galactic polarized synchrotron, which dominant CMB foreground emission at low frequency. We present EE, BB, and EB power spectra estimated from polarization frequency maps 23 30 GHz as observed respectively by WMAP K-band Planck lowest channel, for a set six sky regions covering 30% 94% sky. study synchrotron angular distribution ...

In this paper, we investigate an energy efficiency (EE) maximization problem in multi-user multiple input single output downlink channels. The optimization problem in this system model is difficult to solve in general, since it is in non-convex fractional form. Hence, conventional algorithms have addressed the problem in an iterative manner for each channel realization, which leads to high comp...

Healthy untrained men performed 10 series of 12 knee eccentric extension repetitions (EE) at 160 degrees /s. The maximal voluntary isometric contraction force of the quadriceps muscle, the maximal rate of electrically induced torque development (RTD) and relaxation (RTR), isokinetic concentric torque at 30 degrees /s, the electrostimulation-induced torque at 20 and 100Hz frequencies were establ...