Run-time monitoring of system performance: A goal-oriented and system architecture simulation approach

2010 ◽  
Author(s):  
Tom Hill ◽  
Sam Supakkul ◽  
Lawrence Chung
Keyword(s):  
System Architecture ◽  
System Performance ◽  
Simulation Approach ◽  
Architecture Simulation ◽  
Run Time

Modeling multi-state system reliability analysis in a power station under fatal and nonfatal shocks: a simulation approach

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mohammad Reza Pourhassan ◽  
Sadigh Raissi ◽  
Arash Apornak
Keyword(s):  
Reliability Analysis ◽  
System Reliability ◽  
System Performance ◽  
Failure Process ◽  
State System ◽  
Failure Behavior ◽  
Simulation Approach ◽  
Critical System ◽  
Content Type ◽  
System Reliability Analysis

PurposeIn some environments, the failure rate of a system depends not only on time but also on the system condition, such as vibrational level, efficiency and the number of random shocks, each of which causes failure. In this situation, systems can keep working, though they fail gradually. So, the purpose of this paper is modeling multi-state system reliability analysis in capacitor bank under fatal and nonfatal shocks by a simulation approach.Design/methodology/approachIn some situations, there may be several levels of failure where the system performance diminishes gradually. However, if the level of failure is beyond a certain threshold, the system may stop working. Transition from one faulty stage to the next can lead the system to more rapid degradation. Thus, in failure analysis, the authors need to consider the transition rate from these stages in order to model the failure process.FindingsThis study aims to perform multi-state system reliability analysis in energy storage facilities of SAIPA Corporation. This is performed to extract a predictive model for failure behavior as well as to analyze the effect of shocks on deterioration. The results indicate that the reliability of the system improved by 6%.Originality/valueThe results of this study can provide more confidence for critical system designers who are engaged on the proper system performance beyond economic design.

Two-phase trace-driven simulation (TPTS): a fast multicore processor architecture simulation approach

2010 ◽  
pp. n/a-n/a ◽  
Author(s):  
Hyunjin Lee ◽  
Lei Jin ◽  
Kiyeon Lee ◽  
Socrates Demetriades ◽  
Michael Moeng ◽  
...  
Keyword(s):  
Processor Architecture ◽  
Simulation Approach ◽  
Multicore Processor ◽  
Two Phase ◽  
Architecture Simulation

Modeling run-time adaptation at the system architecture level in dynamic service-oriented environments

2013 ◽  
Vol 8 (1) ◽  
pp. 73-89 ◽  
Author(s):  
Nikolaus Huber ◽  
André van Hoorn ◽  
Anne Koziolek ◽  
Fabian Brosig ◽  
Samuel Kounev
Keyword(s):  
System Architecture ◽  
Service Oriented ◽  
Run Time

Evolution of TD-SCDMA Networks

2009 ◽  
pp. 513-521
Author(s):  
Shuping Chen
Keyword(s):  
System Architecture ◽  
System Performance ◽  
Multimedia Services ◽  
Uplink Capacity ◽  
Single Carrier ◽  
Key Concepts ◽  
Voice Service ◽  
Increasing Demand ◽  
Key Techniques

As the basic 3G choice in China, TD-SCDMA has been widely accepted and adopted. The performance of China Communication Standard Association (CCSA) N-frequency TD-SCDMA DCH (Dedicated Channel) -based services has been well testified in both the trial and real networks. It is no question that DCH-based TD-SCDMA is able to provide both voice service and some packet services. Nowadays, for the ever-increasing demand on the multimedia services, the evolution of TD-SCDMA networks has become a hot issue. Single carrier TDSCDMA HSDPA (TD-HSDPA for short) was introduced in 3GPP in the R5 version as the downlink evolution of TD-SCDMA networks. Multi-carrier TD-HSDPA, introduced by CCSA, is the enhancement version of the 3GPP single carrier TD-HSDPA, which adopts the multi-carrier to improve the system performance. It offers backward-compatible upgrades to both former N-frequency TD-SCDMA networks and single carrier TD-HSDPA systems. In 2006, 3GPP made its effort to standardize the uplink evolution of TD-SCDMA networks. Released by 3GPP R6 version, TD-SCDMA HSUPA (TD-HSUPA for short) is believed to be able to enhance the system uplink capacity significantly. In order to offer the backward-compatible upgrade to both the N-frequency TD-SCDMA and multi-carrier TD-HSDPA, CCSA started the standardization work of multi-carrier TD-HSUPA in August, 2007. Armed with both the downlink and the uplink evolution, TD-SCDMA is believed to be able to provide various multimedia services. This article aims at introducing key concepts of the evolution of TDSCDMA networks, including system architecture, key techniques, protocols, and channels. The article begins with the introduction of the basic characters of TD-SCDMA. Then, the downlink evolution of TDSCDMA networks is presented. After that, we present the uplink evolution of TD-SCDMA networks. Key principles of TD-SCDMA Long-Term Evolution (LTE TDD) are discussed at the end of the article.

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