2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks最新文献_第9页

BASH: A backhaul-aided seamless handoff scheme for Wireless Mesh Networks BASH:用于无线网状网络的回程辅助无缝切换方案

2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks Pub Date : 2008-06-23 DOI: 10.1109/WOWMOM.2008.4594850

Yan He, D. Perkins

{"title":"BASH: A backhaul-aided seamless handoff scheme for Wireless Mesh Networks","authors":"Yan He, D. Perkins","doi":"10.1109/WOWMOM.2008.4594850","DOIUrl":"https://doi.org/10.1109/WOWMOM.2008.4594850","url":null,"abstract":"Wireless mesh networks (WMNs) are comprised of mesh routers whose relatively small transmission range may result infrequent handoffs, leading to high packet delays and loss rates and limiting the performance of real-time applications over WMNs. In this work, we propose BASH - a backhaul-aided seamless handoff scheme. Our scheme takes advantage of the wireless backhaul feature of WMNs and allows a mobile station to probe the neighboring mesh routers by accessing the backhaul channel. After the probe request, the mobile station is able to switch back to its primary communication channel and resume its ongoing communication without waiting for the probe responses. The currently associated mesh router of the mobile station collects the probe responses and selects the new mesh route on behalf of the mobile station. Our works show that by utilizing the wireless backhaul, BASH (1) reduces the probing latency and, thus, the Layer-2 handoff latency; (2) allows partial overlap of the Layer-2 and Layer-3 handoffs, reducing the overall handoff latency; and (3) shortens the authentication latency by utilizing the transitivity of trust relationship. The experimental results show that BASH achieves an average Layer-2 handoff of 8.7 ms, which supports the real-time applications during the handoff.","PeriodicalId":346269,"journal":{"name":"2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132545809","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

Localization in time and space for wireless sensor networks: A Mobile Beacon approach 无线传感器网络的时空定位:一种移动信标方法

2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks Pub Date : 2008-06-23 DOI: 10.1109/WOWMOM.2008.4594838

A. Boukerche, Horácio Oliveira, E. Nakamura, A. Loureiro

{"title":"Localization in time and space for wireless sensor networks: A Mobile Beacon approach","authors":"A. Boukerche, Horácio Oliveira, E. Nakamura, A. Loureiro","doi":"10.1109/WOWMOM.2008.4594838","DOIUrl":"https://doi.org/10.1109/WOWMOM.2008.4594838","url":null,"abstract":"Localization in time and space can be defined as the problem of solving both synchronization and positioning problems at the same time. This is a key problem for wireless sensor networks that need to determine the timing and location information of detected phenomena, especially for tracking applications. In this paper, we discuss the relationship between these two problems and propose the Mobilis (Mobile Beacon for Localization and Synchronization) algorithm, a new time-space localization algorithm for wireless sensor networks. The main aspect of the Mobilis algorithm is the use of a mobile beacon for both localization and synchronization. A mobile beacon is a node that is aware of its time and position (e.g. equipped with a GPS receiver) and that has the ability to move around the sensor field. In our algorithm, the synchronization component uses the packets required by the positioning component to improve its performance. Similarly, the positioning component benefits from the communication required by the synchronization component to decrease errors. We also present an extensive set of experiments and simulations to evaluate the performance of our algorithm.","PeriodicalId":346269,"journal":{"name":"2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123684790","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: 13

Scalable service migration in general topologies 一般拓扑中的可伸缩服务迁移

2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks Pub Date : 2008-06-23 DOI: 10.1109/WOWMOM.2008.4594891

K. Oikonomou, I. Stavrakakis, Alexios Xydias

引用次数: 23

Localized minimum spanning tree based multicast routing with energy-efficient guaranteed delivery in ad hoc and sensor networks 基于局部最小生成树的组播路由在自组网和传感器网络中的高效保证传输

2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks Pub Date : 2008-06-23 DOI: 10.1109/WOWMOM.2008.4594821

Hannes Frey, F. Ingelrest, D. Simplot-Ryl

{"title":"Localized minimum spanning tree based multicast routing with energy-efficient guaranteed delivery in ad hoc and sensor networks","authors":"Hannes Frey, F. Ingelrest, D. Simplot-Ryl","doi":"10.1109/WOWMOM.2008.4594821","DOIUrl":"https://doi.org/10.1109/WOWMOM.2008.4594821","url":null,"abstract":"We present a localized geographic multicast scheme, MSTEAM, based on the construction of local minimum spanning trees (MSTs), that requires information only on 1-hop neighbors. A message replication occurs when the MST spanning the current node and the set of destinations has multiple edges originated at the current node. Destinations spanned by these edges are grouped together, and for each of these subsets the best neighbor is selected as the next hop. This selection is based on a cost over progress metric, where the progress is approximated by subtracting the weight of the MST over a given neighbor and the subset of destinations to the weight of the MST over the current node and the subset of destinations. Since such greedy scheme may lead the message to a void area (i.e., no neighbor providing positive progress), we propose a new multicast generalization of the well-known face recovery mechanism. We provide a theoretical analysis proving that MSTEAM is loop-free, and achieves delivery of the multicast message as long as a path to the destinations exists. Our results demonstrate that MSTEAM outperforms the best existing localized multicast scheme, and is almost as efficient as a centralized scheme in high densities.","PeriodicalId":346269,"journal":{"name":"2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116271163","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: 40

Scalable architecture for context-aware activity-detecting mobile recommendation systems 上下文感知活动检测移动推荐系统的可扩展架构

2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks Pub Date : 2008-06-23 DOI: 10.1109/WOWMOM.2008.4594884

Michael Roberts, Nicolas Ducheneaut, James Begole, K. Partridge, Bob Price, V. Bellotti, Alan Walendowski, Paul Rasmussen

{"title":"Scalable architecture for context-aware activity-detecting mobile recommendation systems","authors":"Michael Roberts, Nicolas Ducheneaut, James Begole, K. Partridge, Bob Price, V. Bellotti, Alan Walendowski, Paul Rasmussen","doi":"10.1109/WOWMOM.2008.4594884","DOIUrl":"https://doi.org/10.1109/WOWMOM.2008.4594884","url":null,"abstract":"One of the main challenges in building multi-user mobile information systems for real-world deployment lies in the development of scalable systems. Recent work on scaling infrastructure for conventional web services using distributed approaches can be applied to the mobile space, but limitations inherent to mobile devices (computational power, battery life) and their communication infrastructure (availability and quality of network connectivity) challenge system designers to carefully design and optimize their software architectures. Additionally, notions of mobility and position in space, unique to mobile systems, provide interesting directions for the segmentation and scalability of mobile information systems. In this paper we describe the implementation of a mobile recommender system for leisure activities, codenamed Magitti, which was built for commercial deployment under stringent scalability requirements. We present concrete solutions addressing these scalability challenges, with the goal of informing the design of future mobile multi-user systems.","PeriodicalId":346269,"journal":{"name":"2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114448049","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: 17

Mobile system energy conservation for adaptive multimedia applications 移动系统节能的自适应多媒体应用

2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks Pub Date : 2008-06-23 DOI: 10.1109/WOWMOM.2008.4594847

A. Harris, Robin Snader, R. Kravets

引用次数: 1

A reliable topology for efficient key distribution in ad-hoc networks 一种可靠的拓扑结构，用于在自组织网络中进行有效的密钥分发

2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks Pub Date : 2008-06-23 DOI: 10.1109/WOWMOM.2008.4594922

K. Miyao, Hidehisa Nakayama, N. Ansari, Y. Nemoto, N. Kato

引用次数: 2

An efficient analytical model for QoS engineering in mobile cellular networks 移动蜂窝网络QoS工程的有效分析模型

2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks Pub Date : 2008-06-23 DOI: 10.1109/WOWMOM.2008.4594845

G. Nogueira, B. Baynat, Ahmed Ziram

引用次数: 5

Prototyping a chest-worn string-based wearable input device 一种可穿戴式输入设备的原型

2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks Pub Date : 2008-06-23 DOI: 10.1109/WOWMOM.2008.4594882

Erik Koch, H. Witt

引用次数: 16

Localization-oriented coverage based on Bayesian estimation in camera sensor networks 基于贝叶斯估计的相机传感器网络定位覆盖

2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks Pub Date : 2008-06-23 DOI: 10.1109/WOWMOM.2008.4594837

Liang Liu, Xi Zhang, Huadong Ma

引用次数: 6