首页 > 最新文献

2010 IEEE Globecom Workshops最新文献

英文 中文
Finite horizon scheduling in wireless ad hoc networks 无线自组织网络的有限视界调度
Pub Date : 2010-12-01 DOI: 10.1109/GLOCOMW.2010.5700450
M. Khalid, X. H. Le, In-ho Ra, R. Sankar
A cooperative ratio-based scheduling scheme with minimal signaling to enhance network throughput and fairness in wireless ad hoc network is presented in this paper. Throughput and fairness maximization problem in a finite horizon (short term) is formulated as a novel multi-window optimization problem. Through analysis users' thresholds are shown to be time variant to achieve throughput maximization with fairness in each window. Simulation results clearly show that compared with non decision-based strategy, ratio-based scheme achieves within 1.6 % of the maximum throughput value and is scalable in terms of the number of nodes. Fairness performance is marginally better than non decision-based strategy.
为了提高无线自组织网络的吞吐量和公平性,提出了一种基于协作比例的最小信令调度方案。将有限视界(短期)上的吞吐量和公平性最大化问题表述为一个新的多窗口优化问题。通过分析表明,用户的阈值是时变的,以实现吞吐量最大化和公平性在每个窗口。仿真结果清楚地表明,与非基于决策的策略相比,基于比率的方案在最大吞吐量值的1.6%以内,并且在节点数量方面具有可扩展性。公平性性能略好于非基于决策的策略。
{"title":"Finite horizon scheduling in wireless ad hoc networks","authors":"M. Khalid, X. H. Le, In-ho Ra, R. Sankar","doi":"10.1109/GLOCOMW.2010.5700450","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2010.5700450","url":null,"abstract":"A cooperative ratio-based scheduling scheme with minimal signaling to enhance network throughput and fairness in wireless ad hoc network is presented in this paper. Throughput and fairness maximization problem in a finite horizon (short term) is formulated as a novel multi-window optimization problem. Through analysis users' thresholds are shown to be time variant to achieve throughput maximization with fairness in each window. Simulation results clearly show that compared with non decision-based strategy, ratio-based scheme achieves within 1.6 % of the maximum throughput value and is scalable in terms of the number of nodes. Fairness performance is marginally better than non decision-based strategy.","PeriodicalId":232205,"journal":{"name":"2010 IEEE Globecom Workshops","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114214909","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
A novel gait recognition analysis system based on body sensor networks for patients with parkinson's disease 基于身体传感器网络的帕金森患者步态识别分析系统
Pub Date : 2010-12-01 DOI: 10.1504/IJCNDS.2011.042379
Shancang Li, Jue Wang, Xinheng Wang
Gait analysis of human plays a significant role in maintaining the well-being of our mobility and healthcare, and it can be used for various e-healthcare systems for fast medical prognosis and diagnosis. In this paper we have developed a novel body sensor network based recognition system to identify the specific gait pattern of Parkinson's disease (PD). Firstly, a BSN with 16 nodes is used to acquire the gait information from the PD patients. Then, an algorithm is developed based on local linear embedding (LLE) to extract and recognize the gait features. Experiments demonstrate the effectiveness of proposed scheme. The results show that the proposed scheme has a recognition rate of about 95.57% for gait patterns of PD, which is higher than the conventional PCA feature extraction method. The proposed system can identify PD patients from normal people and by their gait map with high reliability and appears a promising aid in the diagnosis of the Parkinson's disease.
人体步态分析在维护我们的行动健康和医疗保健方面发挥着重要作用,可用于各种电子医疗保健系统,用于快速医疗预后和诊断。在本文中,我们开发了一种新的基于身体传感器网络的识别系统来识别帕金森病(PD)的特定步态模式。首先,利用16个节点的BSN获取PD患者的步态信息;然后,提出了一种基于局部线性嵌入(LLE)的步态特征提取与识别算法。实验证明了该方案的有效性。结果表明,该方法对PD步态模式的识别率为95.57%,高于传统的PCA特征提取方法。该系统可以从正常人和步态图中识别PD患者,具有很高的可靠性,在帕金森病的诊断中具有很好的应用前景。
{"title":"A novel gait recognition analysis system based on body sensor networks for patients with parkinson's disease","authors":"Shancang Li, Jue Wang, Xinheng Wang","doi":"10.1504/IJCNDS.2011.042379","DOIUrl":"https://doi.org/10.1504/IJCNDS.2011.042379","url":null,"abstract":"Gait analysis of human plays a significant role in maintaining the well-being of our mobility and healthcare, and it can be used for various e-healthcare systems for fast medical prognosis and diagnosis. In this paper we have developed a novel body sensor network based recognition system to identify the specific gait pattern of Parkinson's disease (PD). Firstly, a BSN with 16 nodes is used to acquire the gait information from the PD patients. Then, an algorithm is developed based on local linear embedding (LLE) to extract and recognize the gait features. Experiments demonstrate the effectiveness of proposed scheme. The results show that the proposed scheme has a recognition rate of about 95.57% for gait patterns of PD, which is higher than the conventional PCA feature extraction method. The proposed system can identify PD patients from normal people and by their gait map with high reliability and appears a promising aid in the diagnosis of the Parkinson's disease.","PeriodicalId":232205,"journal":{"name":"2010 IEEE Globecom Workshops","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121653901","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: 16
Decentralised cooperative aerial surveillance for harbour security: A formal verification approach 港口安全的分散合作空中监视:一种正式的核查方法
Pub Date : 2010-12-01 DOI: 10.1109/GLOCOMW.2010.5700258
G. Sirigineedi, A. Tsourdos, B. White, P. Silson
Formal modelling techniques have been used to verify zero-fault tolerant systems such as hardware chips, communication protocols. In this paper we present formal modelling and verification of a multiple UAV system cooperatively monitoring a harbour area. Kripke modelling formalism is used to formally model the decentralised surveillance strategy and the desired system properties are expressed in temporal logic statements. The Kripke model is then subjected to an algorithmic verification technique known as model checking and the validity of the temporal formulae on the model is verified.
正式建模技术已被用于验证零容错系统,如硬件芯片,通信协议。在本文中,我们提出了一种多无人机系统协同监测港区的形式化建模和验证。采用Kripke建模形式对分散监视策略进行形式化建模,并以时间逻辑语句表示所需的系统属性。然后对Kripke模型进行称为模型检查的算法验证技术,并验证模型上时间公式的有效性。
{"title":"Decentralised cooperative aerial surveillance for harbour security: A formal verification approach","authors":"G. Sirigineedi, A. Tsourdos, B. White, P. Silson","doi":"10.1109/GLOCOMW.2010.5700258","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2010.5700258","url":null,"abstract":"Formal modelling techniques have been used to verify zero-fault tolerant systems such as hardware chips, communication protocols. In this paper we present formal modelling and verification of a multiple UAV system cooperatively monitoring a harbour area. Kripke modelling formalism is used to formally model the decentralised surveillance strategy and the desired system properties are expressed in temporal logic statements. The Kripke model is then subjected to an algorithmic verification technique known as model checking and the validity of the temporal formulae on the model is verified.","PeriodicalId":232205,"journal":{"name":"2010 IEEE Globecom Workshops","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121978441","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: 1
Box-Cox transformation as an alternative method for modeling video-on-demand popularity Box-Cox变换作为视频点播流行度建模的替代方法
Pub Date : 2010-12-01 DOI: 10.1109/GLOCOMW.2010.5700239
M. G. Aparicio, R. García, X. G. Pañeda, David Melendi, S. Cabrero
The popularity of multimedia videos related to a wide range of news, which were emitted in three different Spanish local on-line newspapers, has been researched in this paper. The statistic distribution from which the popularity came from is unknown. In fact, throughout the literature, many papers have modeled popularity with different distributions, such as Mandelbrot, Stretched, Zipf-like and so on. In this paper, the Box-Cox transformation has been proposed as a unified approach that would cover all the former distributions. The main advantage is its non-parametric nature and in consequence the model selection might be avoided.
本文研究了西班牙三家不同的地方在线报纸上发布的与广泛新闻相关的多媒体视频的受欢迎程度。流行度的统计分布是未知的。事实上,纵观文献,许多论文都用不同的分布模型来模拟流行度,比如Mandelbrot, stretch, Zipf-like等等。在本文中,Box-Cox变换被提议作为一种统一的方法来覆盖所有以前的分布。其主要优点是它的非参数性质,因此可以避免模型选择。
{"title":"Box-Cox transformation as an alternative method for modeling video-on-demand popularity","authors":"M. G. Aparicio, R. García, X. G. Pañeda, David Melendi, S. Cabrero","doi":"10.1109/GLOCOMW.2010.5700239","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2010.5700239","url":null,"abstract":"The popularity of multimedia videos related to a wide range of news, which were emitted in three different Spanish local on-line newspapers, has been researched in this paper. The statistic distribution from which the popularity came from is unknown. In fact, throughout the literature, many papers have modeled popularity with different distributions, such as Mandelbrot, Stretched, Zipf-like and so on. In this paper, the Box-Cox transformation has been proposed as a unified approach that would cover all the former distributions. The main advantage is its non-parametric nature and in consequence the model selection might be avoided.","PeriodicalId":232205,"journal":{"name":"2010 IEEE Globecom Workshops","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121613502","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
From service delivery to application delivery in the telecommunication industry 从电信行业的服务交付到应用程序交付
Pub Date : 2010-12-01 DOI: 10.1109/GLOCOMW.2010.5700156
C. Menkens
Currently, in the Telecom industry all over the world the move towards service oriented infrastructures based on IP, IP Multimedia Subsystem (IMS), Service Oriented Architectures (SOA) and Service Delivery Platforms (SDP) can be observed and Communication Service Providers are opening parts of their core infrastructure and interfaces to third party developers. But there is a gap between application developer communities and the Telecom industry. The Telecom industry offers its services so developers can use them in their applications but developers don't have any incentives, tools or development environments that would help them to overcome the barriers of accessing the communication services in order to build converged distributed Internet-Telecommunication applications. This research work presents a concept for how to close this gap by evaluating the requirements of the different stakeholders and combining application store concepts (e.g. Apple AppStore, Google Market) with open telecommunication SDP architecture concepts. Outlined is a concept for Application Delivery Platforms (ADP) that extends the concept of SDPs by broadening the focus from re-usable services over application development and lifecycle management to end user applications on client platforms and devices.
目前,在世界各地的电信行业,可以观察到基于IP、IP多媒体子系统(IMS)、面向服务架构(SOA)和服务交付平台(SDP)的面向服务基础设施的发展趋势,通信服务提供商正在向第三方开发人员开放其部分核心基础设施和接口。但是在应用程序开发人员社区和电信行业之间存在着差距。电信行业提供服务,以便开发人员可以在其应用程序中使用这些服务,但开发人员没有任何激励措施、工具或开发环境来帮助他们克服访问通信服务的障碍,从而构建融合的分布式internet -电信应用程序。这项研究工作提出了一个如何通过评估不同利益相关者的需求并将应用程序商店概念(例如Apple AppStore, Google Market)与开放电信SDP架构概念相结合来缩小这一差距的概念。本文概述了应用程序交付平台(ADP)的概念,它扩展了sdp的概念,将重点从应用程序开发和生命周期管理上的可重用服务扩展到客户端平台和设备上的最终用户应用程序。
{"title":"From service delivery to application delivery in the telecommunication industry","authors":"C. Menkens","doi":"10.1109/GLOCOMW.2010.5700156","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2010.5700156","url":null,"abstract":"Currently, in the Telecom industry all over the world the move towards service oriented infrastructures based on IP, IP Multimedia Subsystem (IMS), Service Oriented Architectures (SOA) and Service Delivery Platforms (SDP) can be observed and Communication Service Providers are opening parts of their core infrastructure and interfaces to third party developers. But there is a gap between application developer communities and the Telecom industry. The Telecom industry offers its services so developers can use them in their applications but developers don't have any incentives, tools or development environments that would help them to overcome the barriers of accessing the communication services in order to build converged distributed Internet-Telecommunication applications. This research work presents a concept for how to close this gap by evaluating the requirements of the different stakeholders and combining application store concepts (e.g. Apple AppStore, Google Market) with open telecommunication SDP architecture concepts. Outlined is a concept for Application Delivery Platforms (ADP) that extends the concept of SDPs by broadening the focus from re-usable services over application development and lifecycle management to end user applications on client platforms and devices.","PeriodicalId":232205,"journal":{"name":"2010 IEEE Globecom Workshops","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133833897","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
Quantization scheme for energy detector of soft decision cooperative spectrum sensing in cognitive radio 认知无线电软决策协同频谱感知能量检测器量化方案
Pub Date : 2010-12-01 DOI: 10.1109/GLOCOMW.2010.5700411
Yuuki Tani, T. Saba
Cognitive radio technique enables unlicensed users to use the spectrum assigned to licensed users. Therefore, a highly accurate sensing technique to know the presence of licensed users is essential. For such a purpose, soft decision cooperative spectrum sensing techniques are proposed. In a soft decision cooperative spectrum sensing, the cognitive base station collects the received signal energy information from multiple users. Since the bandwidth of the control channel used for collecting the energy information is limited, it is necessary to quantize the received signal energy information in each user. In this paper, we propose a quantization scheme based on the probability of false alarm for the soft decision cooperative spectrum sensing. The quantization criterion is analytically derived, and the theoretical expression for the resultant probability of false alarm is presented with taking the quantization error into account.
认知无线电技术使无牌用户能够使用分配给有牌用户的频谱。因此,一种高度精确的感知技术来了解许可用户的存在是必不可少的。为此,提出了软决策协同频谱感知技术。在软决策协同频谱感知中,认知基站从多个用户处收集接收到的信号能量信息。由于用于采集能量信息的控制通道的带宽有限,因此有必要对每个用户中接收到的信号能量信息进行量化。本文提出了一种基于虚警概率的软决策协同频谱感知量化方案。对量化判据进行了解析推导,并在考虑量化误差的情况下,给出了虚警产生概率的理论表达式。
{"title":"Quantization scheme for energy detector of soft decision cooperative spectrum sensing in cognitive radio","authors":"Yuuki Tani, T. Saba","doi":"10.1109/GLOCOMW.2010.5700411","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2010.5700411","url":null,"abstract":"Cognitive radio technique enables unlicensed users to use the spectrum assigned to licensed users. Therefore, a highly accurate sensing technique to know the presence of licensed users is essential. For such a purpose, soft decision cooperative spectrum sensing techniques are proposed. In a soft decision cooperative spectrum sensing, the cognitive base station collects the received signal energy information from multiple users. Since the bandwidth of the control channel used for collecting the energy information is limited, it is necessary to quantize the received signal energy information in each user. In this paper, we propose a quantization scheme based on the probability of false alarm for the soft decision cooperative spectrum sensing. The quantization criterion is analytically derived, and the theoretical expression for the resultant probability of false alarm is presented with taking the quantization error into account.","PeriodicalId":232205,"journal":{"name":"2010 IEEE Globecom Workshops","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134251384","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: 19
Sum-rate maximization for multiple users in partial frequency reuse cellular networks 部分频率复用蜂窝网络中多用户和速率最大化
Pub Date : 2010-12-01 DOI: 10.1109/GLOCOMW.2010.5700437
Bujar Krasniqi, M. Wolkerstorfer, C. Mehlfuhrer, C. Mecklenbrauker
We apply constrained optimization techniques to optimally allocate the bandwidth and power to the users in a cellular network. We investigate partial frequency reuse with multiple users in the full and partial frequency regions for inter-cell interference mitigation. We show that the non-convex sum-rate maximization problem becomes convex under certain simplifying assumptions. Moreover, an efficient algorithm is developed to solve the problem for a fixed bandwidth allocation. The optimal solution assigns all available power to the users. Finally, we prove that even without simplifications the non-convex problems of maximizing the minimum rate among users and minimizing the sum-power are transformable into convex forms.
我们应用约束优化技术来优化蜂窝网络中用户的带宽和功率分配。我们研究了多用户在全频率和部分频率区域的部分频率重用,以缓解小区间的干扰。我们证明了非凸和速率最大化问题在某些简化假设下是凸的。在此基础上,提出了一种解决固定带宽分配问题的有效算法。最优方案将所有可用的电力分配给用户。最后,我们证明了在不进行简化的情况下,用户间最小率的最大化和幂的最小化等非凸问题可以转化为凸形式。
{"title":"Sum-rate maximization for multiple users in partial frequency reuse cellular networks","authors":"Bujar Krasniqi, M. Wolkerstorfer, C. Mehlfuhrer, C. Mecklenbrauker","doi":"10.1109/GLOCOMW.2010.5700437","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2010.5700437","url":null,"abstract":"We apply constrained optimization techniques to optimally allocate the bandwidth and power to the users in a cellular network. We investigate partial frequency reuse with multiple users in the full and partial frequency regions for inter-cell interference mitigation. We show that the non-convex sum-rate maximization problem becomes convex under certain simplifying assumptions. Moreover, an efficient algorithm is developed to solve the problem for a fixed bandwidth allocation. The optimal solution assigns all available power to the users. Finally, we prove that even without simplifications the non-convex problems of maximizing the minimum rate among users and minimizing the sum-power are transformable into convex forms.","PeriodicalId":232205,"journal":{"name":"2010 IEEE Globecom Workshops","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134542238","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
Dynamic Tracking Area List configuration and performance evaluation in LTE LTE中动态跟踪区域列表配置与性能评估
Pub Date : 2010-12-01 DOI: 10.1109/GLOCOMW.2010.5700370
S. M. Razavi, D. Yuan, F. Gunnarsson, Johan Moe
Reducing the signaling overhead for tracing user equipment (UE), while maintaining the improved performance over time despite the changes in UE location and mobility patterns, is a challenging issue in the area of mobility management. Flexibility and automatic reconfiguration are two significant features in Long Term Evolution (LTE) systems. The Tracking Area List (TAL) is a novel concept in LTE systems, which allows a more flexible configurations, expecting to reduce the overall signaling overhead. In this paper, we first present a ”rule of thumb” method to allocate and assign TALs for a network. The easily applied approach does not require any data other than what is available for conventional TA design. Second we compare the performance of an optimum conventional TA design with the suggested TAL design for a large scale network in Lisbon, Portugal. A thorough computation is done to make a justified evaluation. We follow the comparison during specific time intervals for one complete day, and we illustrate the performance of reconfiguration for each approach. The results clearly demonstrate the ability of dynamic TAL in reducing the signaling overhead and maintaining a good performance due to reconfiguration compared to the conventional TA design.
减少跟踪用户设备(UE)的信令开销,同时在UE位置和移动模式发生变化的情况下保持改进的性能,是移动管理领域的一个具有挑战性的问题。灵活性和自动重构是长期演进(LTE)系统的两个重要特征。跟踪区域列表(TAL)是LTE系统中的一个新概念,它允许更灵活的配置,期望减少总体信令开销。在本文中,我们首先提出了一种“经验法则”方法来为网络分配和分配tal。这种易于应用的方法不需要任何数据,除了传统的TA设计可用的数据。其次,我们比较了最佳传统TA设计与建议的TAL设计在葡萄牙里斯本的大型网络的性能。为了做出合理的评价,进行了全面的计算。我们在一个完整的一天的特定时间间隔内跟踪比较,并说明每种方法的重新配置性能。结果清楚地表明,与传统的TA设计相比,动态TAL在减少信令开销和保持良好性能方面的能力。
{"title":"Dynamic Tracking Area List configuration and performance evaluation in LTE","authors":"S. M. Razavi, D. Yuan, F. Gunnarsson, Johan Moe","doi":"10.1109/GLOCOMW.2010.5700370","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2010.5700370","url":null,"abstract":"Reducing the signaling overhead for tracing user equipment (UE), while maintaining the improved performance over time despite the changes in UE location and mobility patterns, is a challenging issue in the area of mobility management. Flexibility and automatic reconfiguration are two significant features in Long Term Evolution (LTE) systems. The Tracking Area List (TAL) is a novel concept in LTE systems, which allows a more flexible configurations, expecting to reduce the overall signaling overhead. In this paper, we first present a ”rule of thumb” method to allocate and assign TALs for a network. The easily applied approach does not require any data other than what is available for conventional TA design. Second we compare the performance of an optimum conventional TA design with the suggested TAL design for a large scale network in Lisbon, Portugal. A thorough computation is done to make a justified evaluation. We follow the comparison during specific time intervals for one complete day, and we illustrate the performance of reconfiguration for each approach. The results clearly demonstrate the ability of dynamic TAL in reducing the signaling overhead and maintaining a good performance due to reconfiguration compared to the conventional TA design.","PeriodicalId":232205,"journal":{"name":"2010 IEEE Globecom Workshops","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131017301","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: 37
Topology investigation of a large-scale P2P VoD overlay network based on active measurement 基于主动测量的大规模P2P VoD覆盖网络拓扑研究
Pub Date : 2010-12-01 DOI: 10.1109/GLOCOMW.2010.5700374
Bing Li, M. Ma, Zhigang Jin, Dongxue Zhao
The proliferation of large-scale P2P VoD overlays has created the demands to characterize and to understand the emergent properties of P2P VoD applications. In this paper, we investigate the P2P VoD overlay network by active measurements with the help of the developed software, VoDCrawler. Different from other existing work, our study focuses on the topology of the overlay networks. From the study, we have revealed the major features of the P2P VoD overlay networks and have compared them with that in P2P file sharing and live streaming systems. The discoveries we have obtained could help to further understand the operation of the P2P VoD systems and favor the commercial developments of the P2P VoD applications.
大规模P2P视频点播覆盖的激增产生了对P2P视频点播应用的新兴特性进行表征和理解的需求。本文利用开发的VoD crawler软件对P2P VoD覆盖网络进行了主动测量研究。与其他现有工作不同,我们的研究重点是覆盖网络的拓扑结构。通过研究,我们揭示了P2P视频点播覆盖网络的主要特点,并将其与P2P文件共享和直播系统进行了比较。本文的研究成果有助于进一步了解P2P视频点播系统的运行方式,有利于P2P视频点播应用的商业化发展。
{"title":"Topology investigation of a large-scale P2P VoD overlay network based on active measurement","authors":"Bing Li, M. Ma, Zhigang Jin, Dongxue Zhao","doi":"10.1109/GLOCOMW.2010.5700374","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2010.5700374","url":null,"abstract":"The proliferation of large-scale P2P VoD overlays has created the demands to characterize and to understand the emergent properties of P2P VoD applications. In this paper, we investigate the P2P VoD overlay network by active measurements with the help of the developed software, VoDCrawler. Different from other existing work, our study focuses on the topology of the overlay networks. From the study, we have revealed the major features of the P2P VoD overlay networks and have compared them with that in P2P file sharing and live streaming systems. The discoveries we have obtained could help to further understand the operation of the P2P VoD systems and favor the commercial developments of the P2P VoD applications.","PeriodicalId":232205,"journal":{"name":"2010 IEEE Globecom Workshops","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132876068","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
On the performance of Space Shift Keying for optical wireless communications 无线光通信中空间移位键控的性能研究
Pub Date : 2010-12-01 DOI: 10.1109/GLOCOMW.2010.5700474
Thilo Fath, M. Di Renzo, H. Haas
In this paper, we study the performance of Space Shift Keying (SSK) modulation applied to optical wireless channels. The optical Multiple-Input-Single-Output (MISO) channel used here is obtained through measurements. The experimental setup consists of two lasers and an optical receiver. Using the channel measurements, the performance of SSK is compared to the Single-Input-Single-Output (SISO) transmission case. We build upon a recent finding, obtained for a two-transmitter case, that power imbalance at the transmitters can enhance the performance of SSK, especially in highly correlated channels [1]. It is found in this paper that SSK applied to real optical wireless channels outperforms SISO and Single-Input-Multiple-Output (SIMO) transmission if more than four optical transmitters are used. Furthermore, we show that Space Shift Keying can also exceed Multiple-Input-Multiple-Output (MIMO) setups which apply repetition coding as SSK exploits receive-diversity in a better way.
本文研究了空间移位键控(SSK)调制技术在无线光信道中的应用。这里使用的光多输入单输出(MISO)通道是通过测量得到的。实验装置由两个激光器和一个光学接收器组成。通过通道测量,将SSK的性能与单输入-单输出(SISO)传输情况进行了比较。我们基于最近的一项发现,在双发射机的情况下,发射机的功率不平衡可以增强SSK的性能,特别是在高度相关的信道中[1]。本文发现,当使用四个以上的光发射机时,SSK应用于真实的光无线信道,其传输性能优于SISO和SIMO传输。此外,我们表明空间移位键控也可以超越多输入多输出(MIMO)设置,该设置应用重复编码,因为SSK以更好的方式利用接收分集。
{"title":"On the performance of Space Shift Keying for optical wireless communications","authors":"Thilo Fath, M. Di Renzo, H. Haas","doi":"10.1109/GLOCOMW.2010.5700474","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2010.5700474","url":null,"abstract":"In this paper, we study the performance of Space Shift Keying (SSK) modulation applied to optical wireless channels. The optical Multiple-Input-Single-Output (MISO) channel used here is obtained through measurements. The experimental setup consists of two lasers and an optical receiver. Using the channel measurements, the performance of SSK is compared to the Single-Input-Single-Output (SISO) transmission case. We build upon a recent finding, obtained for a two-transmitter case, that power imbalance at the transmitters can enhance the performance of SSK, especially in highly correlated channels [1]. It is found in this paper that SSK applied to real optical wireless channels outperforms SISO and Single-Input-Multiple-Output (SIMO) transmission if more than four optical transmitters are used. Furthermore, we show that Space Shift Keying can also exceed Multiple-Input-Multiple-Output (MIMO) setups which apply repetition coding as SSK exploits receive-diversity in a better way.","PeriodicalId":232205,"journal":{"name":"2010 IEEE Globecom Workshops","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133293119","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: 49
期刊
2010 IEEE Globecom Workshops
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1