International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014)最新文献_第2页

QoE prediction model for multimedia services in IP network applying queuing policy 基于排队策略的IP网络多媒体业务QoE预测模型

International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014) Pub Date : 2014-07-06 DOI: 10.1109/SPECTS.2014.6879998

L. Sevcik, M. Voznák, J. Frnda

引用次数: 11

Hybrid simulated-emulated platform for heterogeneous access networks performance investigations 异构接入网性能调查的混合仿真平台

International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014) Pub Date : 2014-07-06 DOI: 10.4304/jnw.10.4.265-272

I. Bisio, Alessandro Delfino, S. Delucchi, F. Lavagetto, M. Marchese, G. Portomauro, S. Zappatore

{"title":"Hybrid simulated-emulated platform for heterogeneous access networks performance investigations","authors":"I. Bisio, Alessandro Delfino, S. Delucchi, F. Lavagetto, M. Marchese, G. Portomauro, S. Zappatore","doi":"10.4304/jnw.10.4.265-272","DOIUrl":"https://doi.org/10.4304/jnw.10.4.265-272","url":null,"abstract":"The availability of different access technologies enables the creation of heterogeneous networks supporting users mobility and assuring several different services. Meanwhile these networks require complex control techniques to assure Quality of Service (QoS) to users. Before implementing such networks, a deep performance analysis, through the use of network simulators or real models, is necessary. In particular the first ones (e.g. Network Simulator 3 - ns-3 among the others) are quite simple and easy to manage and configure, while the second ones assure the handling of real traffic flows. The main contribution of this paper is the description of an hybrid simulated and emulated network evaluation platform, developed by the authors. The platform purpose is to execute a performance analysis of different wireless networks such as Long Term Evolution (LTE) and Wi-Fi, connected to a core network implementing the Differentiated Service (DiffServ) protocol. The paper contains also the results of preliminary validation tests.","PeriodicalId":429912,"journal":{"name":"International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126187659","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: 2

Application of discrete-event simulation in acute care's capacity analysis 离散事件模拟在急症护理能力分析中的应用

International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014) Pub Date : 2014-07-06 DOI: 10.1109/SPECTS.2014.6879989

Hongbiao Yang, Rupy Sawhney, Wolday Abrha

引用次数: 0

Detection of short-term radio signal disturbances in industrial wireless sensor networks 工业无线传感器网络中短时无线电信号干扰的检测

International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014) Pub Date : 2014-07-06 DOI: 10.4304/jnw.10.4.201-208

M. Eskola, T. Heikkilä

{"title":"Detection of short-term radio signal disturbances in industrial wireless sensor networks","authors":"M. Eskola, T. Heikkilä","doi":"10.4304/jnw.10.4.201-208","DOIUrl":"https://doi.org/10.4304/jnw.10.4.201-208","url":null,"abstract":"The performance of wireless sensor networks (WSNs) in industrial applications may be degraded due to harsh radio signal propagation conditions. Mobile heavy machines and large metal and concrete surfaces usually worsen the signal fading effects resulting in deep fades. We have studied the effects of certain industrial environmental disturbances on the quality of the transmitted signals in real-life industrial environments. We used software defined radio (SDR) as the receiver to capture the transmitted signals and analyzed the statistical properties of the captured signals with Matlab/Simulink tools. Our studies led us to a method which aims to identify the transmission problems related to signal multipath propagation by calculating the probability density function (PDF) of the received signal and comparing it to the simulated theoretical Rician distributions. The results show that tracking the transformations of the PDF of the received signal helps to recognize the temporal changes in radio link environment and in that way can help to choose the right actions in order to overcome the communication problems.","PeriodicalId":429912,"journal":{"name":"International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014)","volume":"54 24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130692010","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

Performance evaluation of a multi-frame persistent neighbor discovery strategy based on Sift-distribution in DTN RFID networks DTN RFID网络中基于sift分布的多帧持久邻居发现策略的性能评估

International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014) Pub Date : 2014-07-06 DOI: 10.1109/SPECTS.2014.6880006

Danilo Amendola, N. Cordeschi, M. Shojafar, V. Abate, F. Rango

引用次数: 8

Low latency packet processing in software routers 软件路由器中的低延迟数据包处理

International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014) Pub Date : 2014-07-06 DOI: 10.1109/SPECTS.2014.6879993

T. Meyer, Daniel Raumer, F. Wohlfart, B. Wolfinger, G. Carle

{"title":"Low latency packet processing in software routers","authors":"T. Meyer, Daniel Raumer, F. Wohlfart, B. Wolfinger, G. Carle","doi":"10.1109/SPECTS.2014.6879993","DOIUrl":"https://doi.org/10.1109/SPECTS.2014.6879993","url":null,"abstract":"Commodity hardware can be used to build a software router that is capable of high-speed packet processing while being programmable and extensible. Therefore, software routers provide a cost-efficient alternative to expensive, special hardware routers. The efficiency of packet processing in resource-constrained nodes (e.g. software routers) can be strongly increased through parallel processing with commodity hardware based on multi-core processors. However, intra-node resource contention can have a strong negative impact on the corresponding network node. We describe how multi-core software routers can be optimized for low latency support by utilizing the technologies available in commodity PC hardware. For the analysis we used our approach for modeling of resource contention in resource-constrained nodes which is also implemented as the resource-management extension module for ns-3. Based on that, we derived a specific software router model which we used to optimize the performance. Our measurements show that the configuration of a software router has significant influence on the performance. The results can be used for parameter tuning in such systems.","PeriodicalId":429912,"journal":{"name":"International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115805814","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: 4

Performance evaluation of secure AODV with trust management under an energy aware perspective 能源感知视角下具有信任管理的安全AODV性能评估

International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014) Pub Date : 2014-07-06 DOI: 10.1109/SPECTS.2014.6879999

Andrea Lupia, F. Rango

引用次数: 14

On a mechanism of detection of coalitions for reputation systems in P2P networks P2P网络中声誉系统联盟检测机制研究

International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014) Pub Date : 2014-07-06 DOI: 10.1109/SPECTS.2014.6879996

Grzegorz Orynczak, Z. Kotulski

引用次数: 2

Simulating billion-task parallel programs 模拟十亿任务并行程序

International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014) Pub Date : 2014-07-06 DOI: 10.1109/SPECTS.2014.6879997

K. Perumalla, Alfred Park

引用次数: 8

A partially centralized messaging control scheme using star topology in delay and disruption tolerant networks 在容忍延迟和中断网络中使用星型拓扑的部分集中式消息传递控制方案

International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014) Pub Date : 2014-07-06 DOI: 10.1109/SPECTS.2014.6879995

Shoki Oiyama, Hiroki Nishiyama, N. Kato

{"title":"A partially centralized messaging control scheme using star topology in delay and disruption tolerant networks","authors":"Shoki Oiyama, Hiroki Nishiyama, N. Kato","doi":"10.1109/SPECTS.2014.6879995","DOIUrl":"https://doi.org/10.1109/SPECTS.2014.6879995","url":null,"abstract":"Terminal-to-terminal communication technology has been studied to make communication and information distribution possible in an area, where communication infrastructure has been damaged or is not present, such as disaster area or rural area. Since mobile communication devices have short transmission range and high mobility owing to it bringing held by human beings, the network consisting of those nodes suffers from challenging conditions such as intermittent connectivity and absence of the end-to-end path between source and destination. To conquer that, Delay and Disruption Tolerant Networks (DTNs) using store-and-forward approach has attracted much research attention. In general routing algorithms, DTNs nodes exchange the control messages, e.g. the summary vector messages and request messages to know which messages each node possesses and to request replicated messages. However, the number of control messages being exchanged increases with the increase of node density. Furthermore, the size of a control message is proportional according to the number of replicas that shows. To reduce the number of control messages, we propose a partially centralized control scheme using star topology networks. Through our simulations, we show that our proposed method dramatically reduces control overhead in high node density scenarios.","PeriodicalId":429912,"journal":{"name":"International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2014)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123948262","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: 0