Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications最新文献

Lessons learned in deploying a wireless, intranet application on mobile devices 在移动设备上部署无线内部网应用程序的经验教训

Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications Pub Date : 2002-06-20 DOI: 10.1109/MCSA.2002.1017483

Billibon H. Yoshimi, Noi Sukaviriya, H. Derby, B. Carmeli, Brad Bolam, Jeff Elliott, Jim Morgan

引用次数: 6

SEAD: secure efficient distance vector routing for mobile wireless ad hoc networks SEAD:移动无线自组织网络安全有效的距离矢量路由

Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications Pub Date : 2002-06-20 DOI: 10.1109/MCSA.2002.1017480

Yih-Chun Hu, David B. Johnson, A. Perrig

{"title":"SEAD: secure efficient distance vector routing for mobile wireless ad hoc networks","authors":"Yih-Chun Hu, David B. Johnson, A. Perrig","doi":"10.1109/MCSA.2002.1017480","DOIUrl":"https://doi.org/10.1109/MCSA.2002.1017480","url":null,"abstract":"An ad hoc network is a collection of wireless computers (nodes), communicating among themselves over possibly multihop paths, without the help of any infrastructure such as base stations or access points. Although many previous ad hoc network routing protocols have been based in part on distance vector approaches, they have generally assumed a trusted environment. We design and evaluate the Secure Efficient Ad hoc Distance vector routing protocol (SEAD), a secure ad hoc network routing protocol based on the design of the Destination-Sequenced Distance-Vector routing protocol (DSDV). In order to support use with nodes of limited CPU processing capability, and to guard against denial-of-service (DoS) attacks in which an attacker attempts to cause other nodes to consume excess network bandwidth or processing time, we use efficient one-way hash functions and do not use asymmetric cryptographic operations in the protocol. SEAD performs well over the range of scenarios we tested, and is robust against multiple uncoordinated attackers creating incorrect routing state in any other node, even in spite of any active attackers or compromised nodes in the network.","PeriodicalId":419864,"journal":{"name":"Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131486526","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: 1719

The location stack: a layered model for location in ubiquitous computing 位置堆栈:普适计算中的位置分层模型

Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications Pub Date : 2002-06-20 DOI: 10.1109/MCSA.2002.1017482

Jeffrey Hightower, B. Brumitt, G. Borriello

引用次数: 297

Context aggregation and dissemination in ubiquitous computing systems 泛在计算系统中的上下文聚合和传播

Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications Pub Date : 2002-06-20 DOI: 10.1109/MCSA.2002.1017490

Guanling Chen, D. Kotz

{"title":"Context aggregation and dissemination in ubiquitous computing systems","authors":"Guanling Chen, D. Kotz","doi":"10.1109/MCSA.2002.1017490","DOIUrl":"https://doi.org/10.1109/MCSA.2002.1017490","url":null,"abstract":"Many \"ubiquitous computing\" applications need a constant flow of information about their environment to be able to adapt to their changing context. To support these \"context-aware\" applications we propose a graph-based abstraction for collecting, aggregating, and disseminating context information. The abstraction models context information as events, produced by sources and flowing through a directed acyclic graph of event-processing operators, then delivered to subscribing applications. Applications describe their desired event stream as a tree of operators that aggregate low level context information published by existing sources into the high-level context information needed by the application. The operator graph is thus the dynamic combination of all applications' subscription trees. We motivate and describe our graph abstraction, and discuss a variety of critical design issues. We also sketch our Solar system, an implementation that represents one point in the design space for our graph abstraction, and present the specific choices made by Solar and how its future evolution will be guided by the design discussion.","PeriodicalId":419864,"journal":{"name":"Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132303475","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: 159

User devices cooperating to support resource aggregation 用户设备协同支持资源聚合

Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications Pub Date : 2002-06-20 DOI: 10.1109/MCSA.2002.1017486

Casey Carter, R. Kravets

引用次数: 35

Internet suspend/resume 网上挂起/恢复

Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications Pub Date : 2002-06-20 DOI: 10.1109/MCSA.2002.1017484

M. Kozuch, M. Satyanarayanan

引用次数: 336

Supporting aggregate queries over ad-hoc wireless sensor networks 支持自组织无线传感器网络上的聚合查询

Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications Pub Date : 2002-06-20 DOI: 10.1109/MCSA.2002.1017485

S. Madden, R. Szewczyk, M. Franklin, D. Culler

引用次数: 548

Hot-spot congestion relief in public-area wireless networks 公共区域无线网络的热点拥塞缓解

Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications Pub Date : 2002-06-20 DOI: 10.1109/MCSA.2002.1017487

Anand Balachandran, P. Bahl, G. Voelker

{"title":"Hot-spot congestion relief in public-area wireless networks","authors":"Anand Balachandran, P. Bahl, G. Voelker","doi":"10.1109/MCSA.2002.1017487","DOIUrl":"https://doi.org/10.1109/MCSA.2002.1017487","url":null,"abstract":"Wireless LAN administrators are often called upon to deal with the problem of sporadic user congestion at certain popular spaces (\"hot-spots\") within the network. To address this problem, we describe and evaluate two new approaches, explicit channel switching and network-directed roaming for providing hot-spot congestion relief while maintaining pre-negotiated user bandwidth agreements with the network. The goals of these algorithms are: (i) to accommodate more users by dynamically providing capacity where it is needed, when it is needed; (ii) to improve overall network utilization by making more efficient use of deployed resources; and (iii) to guarantee at least a minimum amount of bandwidth to users. We propose that both the network and its users should explicitly and cooperatively adapt themselves to changing load conditions depending on their geographic location within the network. We describe how these algorithms enable the network to transparently adapt to user demands and balance load across its access points (APs). We evaluate the effectiveness of these algorithms on improving user service rates and network utilization using simulations. Our algorithms improve the degree of load balance in the system by over 30%, and user bandwidth allocation by up to 52% in comparison to existing schemes that offer little or no load balancing.","PeriodicalId":419864,"journal":{"name":"Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122643850","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: 233

User interfaces for network services: what, from where, and how 网络服务的用户界面:是什么、从哪里来、如何来

Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications Pub Date : 2002-06-20 DOI: 10.1109/MCSA.2002.1017493

S. Ponnekanti, Luis Alberto Robles, A. Fox

引用次数: 12

Composing pervasive data using iQL 使用iQL组合普适数据

Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications Pub Date : 2002-06-20 DOI: 10.1109/MCSA.2002.1017489

N. Cohen, H. Lei, Paul C. Castro, John S. Davis, A. Purakayastha

引用次数: 70