scholarly journals File System Performance Comparison in Full Hardware Virtualization with ESXi, KVM, Hyper-V and Xen Hypervisors

2021 ◽  
Vol 21 (1) ◽  
pp. 11-20
Author(s):  
B. DJORDJEVIC ◽  
V. TIMCENKO ◽  
N. KRALJEVIC ◽  
N. MACEK
Keyword(s):  
System Performance ◽  
File System ◽  
Performance Comparison ◽  
Hardware Virtualization

scholarly journals Comparison of Performance-Assessment Methods for Residential PV Battery Systems

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5529
Author(s):  
Fabian Niedermeyer ◽  
Martin Braun
Keyword(s):  
System Performance ◽  
High Performance ◽  
Residential Buildings ◽  
Performance Comparison ◽  
Test Procedures ◽  
Self Sufficiency ◽  
Battery Systems ◽  
Efficiency And Effectiveness ◽  
High System

Declining costs for high-performance batteries are leading to a global increased use of storage systems in residential buildings. Especially in conjunction with reduced photovoltaic (PV) feed-in tariffs, a large market has been developed for PV battery systems to increase self-sufficiency. They differ in the type of coupling between PV and battery, the nominal capacities of their components, and their degree of integration. High system performance is particularly important to achieve profitability for the operator. This paper presents and evaluates methods for a uniform determination of PV battery system performance. Already the requirement analysis reveals that a performance comparison of PV battery systems must cover the efficiency and effectiveness during system operation. A method based on a derivation of key performance indicators (KPIs) for these two criteria through an application test is proposed. It is evaluated by comparison to other methods, such as the System Performance Index (SPI) and aggregation of conversion and storage efficiency. These methods are applied with five systems in a laboratory test bench to identify their advantages and drawbacks. Here, a particular focus is on compliance with the initially formulated requirements in terms of both test procedures and KPI derivations. Analysis revealed that the proposed method addresses these requirements well, and is beneficial in terms of result comprehensibility and KPI validity.

Performance Comparison of LS and LMMSE Channel Estimation Algorithm for CO-OFDM System

2011 ◽  
Vol 130-134 ◽  
pp. 2965-2968
Author(s):  
Zheng Rong Tong ◽  
Min Jie Guo ◽  
Xiu Feng Yang ◽  
Wei Hua Zhang
Keyword(s):  
Optical Fiber ◽  
Bit Error Rate ◽  
System Performance ◽  
Single Mode ◽  
Estimation Algorithm ◽  
Performance Comparison ◽  
Ofdm System ◽  
Fiber System ◽  
Single Mode Optical Fiber ◽  
Simulation Results

The CO-OFDM single-mode optical fiber system is constructed by the Matlab coupled with the Optisystem. And the influence of different channel algorithm on the receiver of system is researched. The simulation results show that the system performance is improved by using LS or LMMSE channel algorithm. And the LMMSE channel algorithm can provide better performance than the LS channel algorithm. Compared with LS algorithm, the required receiver OSNR is reduced by about 1 dB using improved LMMSE algorithm at bit-error-rate (BER) =10-4 in the CO-OFDM single-mode optical fiber system.

scholarly journals Variations in optical coherence tomography resolution and uniformity: a multi-system performance comparison

2014 ◽  
Vol 5 (7) ◽  
pp. 2066 ◽  
Author(s):  
Anthony Fouad ◽  
T. Joshua Pfefer ◽  
Chao-Wei Chen ◽  
Wei Gong ◽  
Anant Agrawal ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
System Performance ◽  
Performance Comparison ◽  
Optical Coherence
Sign in / Sign up

Export Citation Format

Share Document