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39th Annual Simulation Symposium (ANSS'06)最新文献

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Specification and performance evaluation of two zone dissemination protocols for vehicular ad-hoc networks 车载自组织网络中两个区域传播协议的规范和性能评价
39th Annual Simulation Symposium (ANSS'06) Pub Date : 2006-04-02 DOI: 10.1109/ANSS.2006.43
J. Brønsted, L. Kristensen
{"title":"Specification and performance evaluation of two zone dissemination protocols for vehicular ad-hoc networks","authors":"J. Brønsted, L. Kristensen","doi":"10.1109/ANSS.2006.43","DOIUrl":"https://doi.org/10.1109/ANSS.2006.43","url":null,"abstract":"Vehicular ad-hoc networks is an emerging research area focussing on communication infrastructures that support vehicles and road-signs in distributing road-state data such as information about hazardous road conditions ahead, approaching emergency vehicles, and traffic delays. Vehicular ad-hoc networks combine the areas of sensor networks (data acquisition) with mobile ad-hoc networks (highly dynamic topology and lack of pre-existing infrastructure). One of the main challenges of vehicular ad-hoc networks is the data dissemination protocols capable of distributing road-state information among vehicles. This paper presents two candidates for dissemination protocols: a zone flooding protocol and a zone diffusion protocol. The two protocols combine ideas from sensor networks and geocasting to ensure that data is aggregated and distributed only in a bounded geographical area. We present a comparative simulation study of the two protocols evaluating their relative performance using conventional metrics (such as network load) as well as application-specific metrics (such as awareness). The simulation study has been conducted using the network simulator 2 (NS-2) and has highlighted key properties of the two protocols that can be used as a basis for selecting the most appropriate protocol.","PeriodicalId":308739,"journal":{"name":"39th Annual Simulation Symposium (ANSS'06)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131146918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 52
Qualitative physics for movable objects in MOUT MOUT中可移动物体的定性物理
39th Annual Simulation Symposium (ANSS'06) Pub Date : 2006-04-02 DOI: 10.1109/ANSS.2006.39
Suiping Zhou, Shang-Ping Ting
{"title":"Qualitative physics for movable objects in MOUT","authors":"Suiping Zhou, Shang-Ping Ting","doi":"10.1109/ANSS.2006.39","DOIUrl":"https://doi.org/10.1109/ANSS.2006.39","url":null,"abstract":"We describe our work on qualitative physics for modelling movable objects in Twilight City, a virtual environment for military operations on urbanized terrain (MOUT). Movable objects such as chairs, boxes, bottles, etc. are quite common in real life. However, the computational cost will be high if the exact physics laws are used to model the behaviour of these objects. To reduce the computational cost of simulating moveable objects in Twilight City, a framework for qualitative behaviour simulation has been proposed and integrated into our simulation engine. Example results show that the proposed framework is successful in modelling the dynamic behaviour of various movable objects in Twilight City in terms of human players' perceptions and responsiveness of the system.","PeriodicalId":308739,"journal":{"name":"39th Annual Simulation Symposium (ANSS'06)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134364911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Distributed quasi-Monte Carlo algorithm for option pricing on HNOWs using mpC 基于mpC的HNOWs期权定价的分布式拟蒙特卡罗算法
39th Annual Simulation Symposium (ANSS'06) Pub Date : 2006-04-02 DOI: 10.1109/ANSS.2006.20
Gong Chen, P. Thulasiraman, R. Thulasiram
{"title":"Distributed quasi-Monte Carlo algorithm for option pricing on HNOWs using mpC","authors":"Gong Chen, P. Thulasiraman, R. Thulasiram","doi":"10.1109/ANSS.2006.20","DOIUrl":"https://doi.org/10.1109/ANSS.2006.20","url":null,"abstract":"Monte Carlo (MC) simulation is one of the popular approaches for approximating the value of options and other derivative securities due to the absence of straightforward closed form solutions for many financial models. However, the slow convergence rate, O(N/sup - 1/2/) for N number of samples of the MC method has motivated research in quasi Monte-Carlo (QMC) techniques. QMC methods use low discrepancy (LD) sequences that provide faster, more accurate results than MC methods. In this paper, we focus on the parallelization of the QMC method on a heterogeneous network of workstations (HNOWs) for option pricing. HNOWs are machines with different processing capabilities and have distinct execution time for the same task. It is therefore important to allocate and schedule the tasks depending on the performance and resources of these machines. We present an adaptive, distributed QMC algorithm for option pricing, taking into account the performances of both processors and communications. The algorithm distributes data and computations based on the architectural features of the available processors at run time. We implement the algorithm using mpC, an extension of ANSI C language for parallel computation on heterogeneous networks. We compare and analyze the performance results with different parallel implementations. The results of our algorithm demonstrate a good performance on heterogenous parallel platforms.","PeriodicalId":308739,"journal":{"name":"39th Annual Simulation Symposium (ANSS'06)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115158563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
iSimBioSys: a discrete event simulation platform for 'in silico' study of biological systems iSimBioSys:一个离散事件模拟平台，用于生物系统的“计算机”研究
39th Annual Simulation Symposium (ANSS'06) Pub Date : 2006-04-02 DOI: 10.1109/ANSS.2006.22
Samik Ghosh, P. Ghosh, K. Basu, Sajal K. Das, S. Daefler
{"title":"iSimBioSys: a discrete event simulation platform for 'in silico' study of biological systems","authors":"Samik Ghosh, P. Ghosh, K. Basu, Sajal K. Das, S. Daefler","doi":"10.1109/ANSS.2006.22","DOIUrl":"https://doi.org/10.1109/ANSS.2006.22","url":null,"abstract":"With the availability of huge databases cataloguing the various molecular \"parts\" of complex biological systems, researchers from multiple disciplines have focused on developing modeling and simulation tools for studying the variability of cellular behavior at a system level - encompassing the dynamics arising from many species of interacting molecules. In this work, we present a system engineering approach to model biological processes. In this approach, a biological process is modeled as a collection of interacting functions driven in time by a set of discrete events. We focus on the discrete event simulation platform, called \"iSimBioSys\", which we have developed for studying the dynamics of cellular processes in silico. As a test-bed for studying our approach we model the two component PhoPQ system, responsible for the expression of several virulence genes in Salmonella Typhimurium. We analyzed the effect of extra cellular magnesium on the behavioral dynamics of this pathway using our framework and compared the results with an experimental system. We also analyze the performance of iSimBioSys, based on the model biological system, in terms of system usage and response.","PeriodicalId":308739,"journal":{"name":"39th Annual Simulation Symposium (ANSS'06)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129299524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
Design and implementation of a workload specific simulator 工作负载特定模拟器的设计和实现
39th Annual Simulation Symposium (ANSS'06) Pub Date : 2006-04-02 DOI: 10.1109/ANSS.2006.19
Takashi Nakada, Tomoaki Tsumura, H. Nakashima
{"title":"Design and implementation of a workload specific simulator","authors":"Takashi Nakada, Tomoaki Tsumura, H. Nakashima","doi":"10.1109/ANSS.2006.19","DOIUrl":"https://doi.org/10.1109/ANSS.2006.19","url":null,"abstract":"This paper proposes a simple but efficient technique for instruction set simulators. Our simulator is made workload specific by a simple process to generate a set of C functions from a workload binary. It is as portable and retargetable as ordinary instruction emulators because the translation targets C code and works well with well-abstracted instruction definitions. The translation is also easy-to-implement without requiring any complicated analysis nor profiling. We also propose a set of simple optimization techniques for cache simulation which cooperates with the workload specific technique. A SimpleScalar-based implementation of these techniques results a significantly large performance improvement. Our evaluations with SPEC CPU95 exhibit that the maximum speedups over sim-fast, sim-cache and sim-outorder are 38-fold, 14-fold and 9.7-fold respectively, while the average numbers are 19-fold, 8.3-fold and 3.8-fold.","PeriodicalId":308739,"journal":{"name":"39th Annual Simulation Symposium (ANSS'06)","volume":"241 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116145232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Simulation study of firewalls to aid improved performance 防火墙的模拟研究，以帮助提高性能
39th Annual Simulation Symposium (ANSS'06) Pub Date : 2006-04-02 DOI: 10.1109/ANSS.2006.42
Subrata Acharya, Jia Wang, Zihui Ge, T. Znati, A. Greenberg
{"title":"Simulation study of firewalls to aid improved performance","authors":"Subrata Acharya, Jia Wang, Zihui Ge, T. Znati, A. Greenberg","doi":"10.1109/ANSS.2006.42","DOIUrl":"https://doi.org/10.1109/ANSS.2006.42","url":null,"abstract":"The overall performance of a firewall is crucial in enforcing and administrating security, especially when the network is under attack. The continuous growth of the Internet, coupled with the increasing sophistication of the attacks, is placing stringent demands on firewall performance. Under such circumstances it becomes very vital to understand the fundamental behind firewalls and their operation. In this paper, we describe a simulation framework for the study and analysis of firewalls. Based on this framework, we design methodologies to inspect and analyze both multi-dimensional firewall rules and traffic logs information. The data used for this study was collected over a large set of firewall rules and traffic logs at tens of enterprise networks managed by a Tier-1 service provider. The analysis presented in the paper firmly state the importance of considering traffic information in the process of firewall optimization. To the best of our knowledge, ours is the first attempt to show the relevance of considering traffic characteristics to aid firewall optimization.","PeriodicalId":308739,"journal":{"name":"39th Annual Simulation Symposium (ANSS'06)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123636283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 43
Performance enhancement by eliminating redundant function execution 通过消除冗余函数执行来增强性能
39th Annual Simulation Symposium (ANSS'06) Pub Date : 2006-04-02 DOI: 10.1109/ANSS.2006.34
Peng-Sheng Chen, K. Kavi, R. Akl
{"title":"Performance enhancement by eliminating redundant function execution","authors":"Peng-Sheng Chen, K. Kavi, R. Akl","doi":"10.1109/ANSS.2006.34","DOIUrl":"https://doi.org/10.1109/ANSS.2006.34","url":null,"abstract":"Programs often call the same function with the same arguments, yielding the same results. We call this phenomenon, \"function reuse\". Previously, we have shown such a behavior for some of the SPEC2000 integer benchmarks using HP ATOM instrumentation tools. However, this required extensive analysis by hand, and assumptions regarding side-effects caused by functions. In this paper, we modified a well-known architecture simulator, SimpleScalar, to analyze multiple benchmarks to investigate the function reuse behavior.","PeriodicalId":308739,"journal":{"name":"39th Annual Simulation Symposium (ANSS'06)","volume":" 27","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120934055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
A new approach for computing conditional probabilities of general stochastic processes 计算一般随机过程条件概率的新方法
39th Annual Simulation Symposium (ANSS'06) Pub Date : 2006-04-02 DOI: 10.1109/ANSS.2006.7
Fabian Wickborn, Claudia Isensee, T. Simon, S. Lazarova-Molnar, G. Horton
{"title":"A new approach for computing conditional probabilities of general stochastic processes","authors":"Fabian Wickborn, Claudia Isensee, T. Simon, S. Lazarova-Molnar, G. Horton","doi":"10.1109/ANSS.2006.7","DOIUrl":"https://doi.org/10.1109/ANSS.2006.7","url":null,"abstract":"In this paper, hidden Markov model algorithms are considered as a method for computing conditional properties of continuous-time stochastic simulation models. The goal is to develop an algorithm that adapts known hidden Markov model algorithms for use with proxel-based simulation. It is shown how the forward- and Viterbi-algorithms can be directly integrated in the proxel-method. The possibility of integrating the more complex Baum-Welch-algorithm is theoretically addressed. Experiments are conducted to determine the practicability of the new approach and to illustrate the type of analysis that is possible.","PeriodicalId":308739,"journal":{"name":"39th Annual Simulation Symposium (ANSS'06)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129718096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
A new scheme for mobility, sensing, and security management in wireless ad hoc sensor networks 无线自组织传感器网络中移动、传感和安全管理的新方案
39th Annual Simulation Symposium (ANSS'06) Pub Date : 2006-04-02 DOI: 10.1109/ANSS.2006.8
N. Boudriga, Mourad Baghdadi, M. Obaidat
{"title":"A new scheme for mobility, sensing, and security management in wireless ad hoc sensor networks","authors":"N. Boudriga, Mourad Baghdadi, M. Obaidat","doi":"10.1109/ANSS.2006.8","DOIUrl":"https://doi.org/10.1109/ANSS.2006.8","url":null,"abstract":"The growth of different network architectures to connect wireless sensors for monitoring physical environments has become an important application area. Chief issues related to such systems include: (a) the permanence of environment monitoring, (b) the mobility management of sensors, (c) the ad-hoc communication method, and (d) the security of responsive messages. This paper presents an ad-hoc architecture and communication and mobility schemes to offer an efficient monitoring system in an environment where targets have unpredicted motion. Moreover, it introduces a security solution. The paper concludes by presenting the simulation results in order to validate the effectiveness of the proposed schemes.","PeriodicalId":308739,"journal":{"name":"39th Annual Simulation Symposium (ANSS'06)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129746772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
DDSOS: a dynamic distributed service-oriented simulation framework DDSOS:一个动态的分布式面向服务的模拟框架
39th Annual Simulation Symposium (ANSS'06) Pub Date : 2006-04-02 DOI: 10.1109/ANSS.2006.17
W. Tsai, C. Fan, Yinong Chen, R. Paul
{"title":"DDSOS: a dynamic distributed service-oriented simulation framework","authors":"W. Tsai, C. Fan, Yinong Chen, R. Paul","doi":"10.1109/ANSS.2006.17","DOIUrl":"https://doi.org/10.1109/ANSS.2006.17","url":null,"abstract":"This paper presents the DDSOS framework developed at Arizona State University, which supports the simulation, development, and evaluation of large scale distributed systems such as network-centric and system-of-systems applications. The distinct features of the framework include automated simulation code generation from the specification, code deployment, simulation of different architectures with a template-based platform builder, service-oriented multi-agent simulation for easy reconfiguration, and dynamic analyses of results from evaluation and monitoring. The framework and the associated tools have been implemented and applied in several governmental and industrial projects.","PeriodicalId":308739,"journal":{"name":"39th Annual Simulation Symposium (ANSS'06)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117046802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 61
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