Performance Evaluation of a Massively Parallel Decoder for CISC Microprocessors

2011 ◽  
Vol 65 ◽  
pp. 590-594
Author(s):  
Jian Feng An ◽  
Xiao Ya Fan ◽  
Jun Zhang ◽  
Hai Feng Yi
Keyword(s):  
Performance Evaluation ◽  
Massively Parallel ◽  
Simulation Results

Performance of the decoder unit is critical for CISC microprocessors. To take x86 ISA for an example, we analyzes the x86 instruction formats in detail. We compare two decoding strategies used in Longteng C1&C2 microprocessors: One is a simply direct serial decoder; another is a massively parallel decoder. Simulation results show speedups around 2.2~3.6 are obtained by using 10 parallel sub-decoders.

scholarly journals 2 Performance Evaluation of Code Division Multiple Access (CDMA) in terms of Power Measurement and Reduction

2011 ◽  
Vol 1 (1) ◽  
pp. 4
Author(s):  
Syed Rizwan-ul- Hasan ◽  
Shakil Ahmed
Keyword(s):  
Performance Evaluation ◽  
Code Division Multiple Access ◽  
Multiple Access ◽  
Average Power ◽  
Power Measurement ◽  
Cdma System ◽  
Power Ratio ◽  
Ratio Measurement ◽  
Simulation Results ◽  
Code Division Multiple

 In this research paper the performance of the CDMA system has been analyzed with respect to PAPR (Peak to Average Power Ratio) measurement and its reduction. Simulation results verify that high peaks degrade the performance of CDMA, application of codes reduced high peaks and PAPR is a good measure for CDMA.

scholarly journals Performance Evaluation of Acoustic Underwater Data Broadcasting Exploiting the Bandwidth-Distance Relationship

2011 ◽  
Vol 7 (4) ◽  
pp. 285-298 ◽  
Author(s):  
P. Nicopolitidis ◽  
K. Christidis ◽  
G. I. Papadimitriou ◽  
P. G. Sarigiannidis ◽  
A. S. Pomportsis
Keyword(s):  
Performance Evaluation ◽  
Superior Performance ◽  
Data Broadcasting ◽  
Improve Performance ◽  
Underwater Acoustic ◽  
Underwater Environment ◽  
Simulation Results ◽  
Distance Relationship ◽  
Characteristic Relationship ◽  
Receiver Distance

Despite being a fundamental networking primitive, data broadcasting has so far received little attention in the context of underwater networks. This paper proposes an adaptive push system for data broadcasting in underwater acoustic wireless networks with locality of client demands. The proposed system exploits the characteristic relationship between the bandwidth of an underwater acoustic link and the transmitter-receiver distance in order to improve performance in environments with locality of client demands. Simulation results show superior performance of the proposed approach in the underwater environment compared to existing systems.

scholarly journals Performance Evaluation of Proximity Services and Wi-Fi for Public Safety Mission Critical Voice Application

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Wesley D. Garey ◽  
Yishen Sun ◽  
Richard A. Rouil
Keyword(s):  
Performance Evaluation ◽  
Rural Areas ◽  
Performance Metrics ◽  
Traffic Load ◽  
Access Time ◽  
Light Traffic ◽  
System Parameters ◽  
Proximity Services ◽  
Mission Critical ◽  
Simulation Results

Proximity Services (ProSe) and Wi-Fi are two promising technologies that may provide support for Mission Critical Voice (MCV) applications in remote and rural areas by enabling Device-to-Device (D2D) communication. In this paper, several performance metrics of ProSe and Wi-Fi are evaluated and compared side-by-side under various configurations. The ns-3 simulation results show that ProSe outperforms Wi-Fi in terms of coverage range and access time with a medium traffic load, while Wi-Fi has a shorter access time under a light traffic load. In addition, with various user densities, ProSe offers better coverage range and access time a majority of the time. The evaluation in this paper provides insights to first responders on what to expect with either technology and how to improve the performance by adjusting different system parameters.

Performance Evaluation of IEEE 802.15.4: Experimental and Simulation Results

2007 ◽  
Vol 2 (4) ◽  
Author(s):  
Khaled Shuaib ◽  
Maryam Alnuaimi ◽  
Mohamed Boulmalf ◽  
Imad Jawhar ◽  
Farag Sallabi ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Ieee 802.15.4 ◽  
Simulation Results

Logistic Performance Evaluation of Squeeze Casting Equipments Based on Simulation

2012 ◽  
Vol 468-471 ◽  
pp. 1936-1940
Author(s):  
Jian Xin Deng
Keyword(s):  
Performance Evaluation ◽  
Cycle Time ◽  
Processing Time ◽  
Squeeze Casting ◽  
Casting Machine ◽  
Utilization Rate ◽  
Production Cycle ◽  
Rate Performance ◽  
Curing Time ◽  
Simulation Results

The logistic performance of a squeeze casting equipment like production cycle time and the utilization rate of components, has impacts on the production rhythm , cast quality and it's lifecycle. So it is essential to analyze the logistic performance of squeeze casting equipments during design, buying and using. This paper deals with evaluating the logistic performance of squeeze casting equipments through simulation.Flexsim software was employed to simulate squeeze casting equipments, where the simulation model of a squeeze casting machine was constructed and the utilization rate was investigated by conducting four simulation samples of different cast products.It is indicated that simulation is an easy and effective method to evaluate the utilization rate performance of squeeze casting equipments and it is concluded that the utilization rate of all component cells except squeeze mechanism is very low and decreases with the curing time of casts increase, their value is very close to the ratio of the their processing time to each total cycle time. The simulation results can also help us find the bottleneck and optimize design of the squeeze casting equipment.

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