The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services最新文献_第5页

A SIP-based architecture model for contextual coalition access control for ubiquitous computing 基于sip的泛在计算上下文联盟访问控制体系结构模型

The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services Pub Date : 2005-07-17 DOI: 10.1109/MOBIQUITOUS.2005.8

R. Liscano, Kaining Wang

引用次数: 9

Wireless sensor networks for health monitoring 用于健康监测的无线传感器网络

The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services Pub Date : 2005-07-17 DOI: 10.1109/MOBIQUITOUS.2005.65

R. Jafari, A. Encarnacao, Azad Zahoory, F. Dabiri, H. Noshadi, M. Sarrafzadeh

引用次数: 140

Extended ZRP: a routing layer based service discovery protocol for mobile ad hoc networks 扩展ZRP:一种基于路由层的移动自组织网络服务发现协议

The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services Pub Date : 2005-07-17 DOI: 10.1109/MOBIQUITOUS.2005.30

C. Ververidis, George C. Polyzos

引用次数: 40

Contextualizing applications via semantic middleware 通过语义中间件对应用程序进行上下文化

The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services Pub Date : 2005-07-17 DOI: 10.1109/MOBIQUITOUS.2005.19

O. Lassila, Deepali Khushraj

{"title":"Contextualizing applications via semantic middleware","authors":"O. Lassila, Deepali Khushraj","doi":"10.1109/MOBIQUITOUS.2005.19","DOIUrl":"https://doi.org/10.1109/MOBIQUITOUS.2005.19","url":null,"abstract":"The use of description logics (DLs) in modeling various real-world domains, and reasoning about them, has well-known benefits. We believe that the same framework can be used for representing a user-centric view of usage contexts. A DL-reasoner can then be used for organizing context definitions, merging domain knowledge into these definitions, and performing recognition of contexts from sensor inputs. A pure DL-based approach, however, has certain limitations in a context environment; hence, a hybrid reasoning approach is proposed. To ensure syntactic and semantic interoperability, we adopt a semantic Web-compliant approach that uses the OWL-DL variant of the OWL Web ontology language. This allows us to aggregate various heterogeneous data sources, both directly in semantic Web formalisms, and indirectly via the use of a transformation framework capable of using data from legacy applications. Context and domain models, along with associated reasoners, are themselves context, user and/or organization-specific; hence multiple systems should be maintained and connected into a distributed architecture. In order to deploy this architecture in a mobile environment, an underlying SIP-based provisioning framework has been experimented with, enabling device, network and location transparency.","PeriodicalId":129488,"journal":{"name":"The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133780107","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

Multivariate analysis for probabilistic WLAN location determination systems 概率无线局域网定位系统的多变量分析

The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services Pub Date : 2005-07-17 DOI: 10.1109/MOBIQUITOUS.2005.41

M. Youssef, M. Abdallah

{"title":"Multivariate analysis for probabilistic WLAN location determination systems","authors":"M. Youssef, M. Abdallah","doi":"10.1109/MOBIQUITOUS.2005.41","DOIUrl":"https://doi.org/10.1109/MOBIQUITOUS.2005.41","url":null,"abstract":"WLAN location determination systems are gaining increasing attention due to the value they add to wireless networks. In this paper, we present a multivariate analysis technique for enhancing the performance of WLAN location determination systems by taking the correlation between samples from the same access point into account. We show that the autocorrelation between consecutive samples from the same access point can be as high as 0.9. Giving a sequence of correlated signal strength samples from an access point, the technique estimates the user location based on the calculated probability of this sequence from the multivariate distribution. We use a linear autoregressive model to derive the multivariate distribution function for the correlated samples. Using analytical analysis, we show that the proposed technique provides better location accuracy over previous techniques especially for the highly correlated samples in a typical WLAN environment. Implementation of the technique in the Horus WLAN location determination system shows that the average system accuracy is increased by more than 64%. This significant enhancement in the accuracy of WLAN location determination systems helps increase the set of context-aware applications implemented on top of these systems.","PeriodicalId":129488,"journal":{"name":"The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services","volume":"278 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133937062","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: 55

An analysis of strategies for mitigating the sensor network hot spot problem 缓解传感器网络热点问题的策略分析

The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services Pub Date : 2005-07-17 DOI: 10.1109/MOBIQUITOUS.2005.10

M. Perillo, Z. Cheng, W. Heinzelman

{"title":"An analysis of strategies for mitigating the sensor network hot spot problem","authors":"M. Perillo, Z. Cheng, W. Heinzelman","doi":"10.1109/MOBIQUITOUS.2005.10","DOIUrl":"https://doi.org/10.1109/MOBIQUITOUS.2005.10","url":null,"abstract":"In multi-hop wireless sensor networks that are characterized by many-to-one (converge-east) traffic patterns, problems related to energy imbalance among sensors often appear. When the transmission range is fixed for nodes throughout the network, the amount of traffic that sensors are required to forward increases dramatically as the distance to the data sink becomes smaller. Thus, sensors closest to the data sink tend to die early. Network lifetime can be improved to a limited extent by the use of a more intelligent transmission power control policy that balances the energy used in each node by requiring nodes further from the data sink to transmit over longer distances (although not directly to the data sink). Alternatively, policies such as data aggregation allow the network to operate in a more energy efficient manner. Since the deployment of an aggregator node may be significantly more expensive than the deployment of an ordinary microsensor node, there is a cost tradeoff involved in this approach. This paper provides an analysis of these policies for mitigating the sensor network hot spot problem, considering energy efficiency as well as cost efficiency.","PeriodicalId":129488,"journal":{"name":"The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125737554","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: 97

Agent negotiation in ad-hoc networks 自组织网络中的代理协商

The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services Pub Date : 2005-07-17 DOI: 10.1109/MOBIQUITOUS.2005.9

C. Carabelea, M. Berger

引用次数: 12

Decentralized optimization of dynamic Bluetooth scatternets 动态蓝牙散射网的分散优化

The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services Pub Date : 2005-07-17 DOI: 10.1109/MOBIQUITOUS.2005.21

Sewook Jung, M. Gerla, C. K. Kallo, M. Brunato

引用次数: 10

Energy efficient processing of K nearest neighbor queries in location-aware sensor networks 位置感知传感器网络中K个最近邻查询的节能处理

The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services Pub Date : 2005-07-17 DOI: 10.1109/MOBIQUITOUS.2005.28

J. Winter, Yingqi Xu, Wang-Chien Lee

引用次数: 39

Community-based asynchronous wakeup protocol for wireless peer-to-peer file sharing networks 基于社区的无线点对点文件共享网络异步唤醒协议

The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services Pub Date : 2005-07-17 DOI: 10.1109/MOBIQUITOUS.2005.17

A. Leung, Yu-Kwong Kwok

引用次数: 3