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SocialButton - Mobile Technology Enhancing Social Interaction SocialButton——增强社交互动的移动技术
The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007) Pub Date : 2007-09-12 DOI: 10.1109/NGMAST.2007.4343395
Johannes Landstorfer, Larissa Pschetz, Malte Kloes, Reto Wettach
{"title":"SocialButton - Mobile Technology Enhancing Social Interaction","authors":"Johannes Landstorfer, Larissa Pschetz, Malte Kloes, Reto Wettach","doi":"10.1109/NGMAST.2007.4343395","DOIUrl":"https://doi.org/10.1109/NGMAST.2007.4343395","url":null,"abstract":"We are exploring the use of small displays as an instrument to enhance social communication. Our focus is on encouraging communication between strangers by revealing the existence of common friends. In the following we present the concept of the SocialButton, a wearable mobile device which displays aspects of friend-of-a-friend networks. A group study has provided us with an initial understanding regarding the potential of the SocialButton to influence our social environment.","PeriodicalId":342172,"journal":{"name":"The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114936212","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
SIP security problems in NGM Services NGM服务中的SIP安全问题
The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007) Pub Date : 2007-09-12 DOI: 10.1109/NGMAST.2007.4343428
F. Leitold, A. Medve, L. Kovács
{"title":"SIP security problems in NGM Services","authors":"F. Leitold, A. Medve, L. Kovács","doi":"10.1109/NGMAST.2007.4343428","DOIUrl":"https://doi.org/10.1109/NGMAST.2007.4343428","url":null,"abstract":"A variety of wireless interfaces are available to access Internet content in a heterogeneous network composed by technologies with limited QoS abilities. Performance increasing solutions become economic in specific parts of the network architecture, as the network sizes and the clients' numbers increase. SIP is used to locate the called party to check that the capabilities of the calling and called parties are consistent and to establish and control the connection. In this paper, we propose an addition to the SIP header/message compression methodology to improve the network QoS by implementations of SIP protocol quality options. We also deal with related SIP security issues regarding practicality and realization possibilities. This paper would like to highlight that security vulnerabilities, open problems may exist using the SIP protocol in usual cases of the practical usage.","PeriodicalId":342172,"journal":{"name":"The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122832944","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
Smart Spaces: Indoor Wireless Location Management System 智能空间:室内无线位置管理系统
The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007) Pub Date : 2007-09-12 DOI: 10.1109/NGMAST.2007.4343431
V. Joy, P. Vimal Laxman
{"title":"Smart Spaces: Indoor Wireless Location Management System","authors":"V. Joy, P. Vimal Laxman","doi":"10.1109/NGMAST.2007.4343431","DOIUrl":"https://doi.org/10.1109/NGMAST.2007.4343431","url":null,"abstract":"Determining the location of objects or people in a smart space is one of the prerequisites enabling smart applications. The ideal location system makes use of existing infrastructure such as wireless LAN or cellular communication systems. However, in indoor environment typical wireless LAN systems do not provide sufficient accuracy for many smart applications and such as WLAN based location system needs to be enhanced. This paper involves proposal of a heterogeneous location system based on a combination of IEEE 802.11 WLAN and a sensor network based ultra wideband radar system. The proposed system provides greater accuracy than other proposed systems and provides the added advantage that the sensor network can be utilized for other ubiquitous computing applications.","PeriodicalId":342172,"journal":{"name":"The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007)","volume":"90 35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129863157","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
An Analytical Approach to Probability of Outage Evaluation in Gamma Shadowed Nakagami-m and Rice Fading Channel Gamma阴影Nakagami-m和Rice衰落信道中断概率评估的分析方法
The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007) Pub Date : 2007-09-12 DOI: 10.1109/NGMAST.2007.4343424
M. Hadzialic, S. Colo, A. Sarajlic
{"title":"An Analytical Approach to Probability of Outage Evaluation in Gamma Shadowed Nakagami-m and Rice Fading Channel","authors":"M. Hadzialic, S. Colo, A. Sarajlic","doi":"10.1109/NGMAST.2007.4343424","DOIUrl":"https://doi.org/10.1109/NGMAST.2007.4343424","url":null,"abstract":"In this paper a unified analytical approach to performance analyses in gamma shadowed Nakagami- m and Rice fading channel is presented. Instead of lognormal probability density function (PDF), gamma PDF is used for shadowing while multipath fading is represented with Nakagami-m and Rice distributions. A mathematical framework is developed for deriving key statistical parameters such as PDFs of signal to noise ratio(SNR) and signal to interference ratio (SIR) of several special scenarios in mobile channel as well as performance metrics including outage probability. In this way, one can conclude that presented results are reliable for lognormal shadowing spread <9 dB (note that, the shadowing spread actually observed in macro-cells has a typical value that lies between 4 and 9 dB). The final results are remarkably simple and can serve as a quick way of assessing performance. In addition, presented analytical expressions are suitable for the asymptotic analyses, which is significant feature for both theoretical and practical aspect of theirs applications.","PeriodicalId":342172,"journal":{"name":"The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129466952","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
An Enhanced Buffer Management Scheme for Multimedia Traffic in HSDPA 一种增强的HSDPA多媒体流量缓冲管理方案
The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007) Pub Date : 2007-09-12 DOI: 10.1109/NGMAST.2007.4343435
S. Yerima, K. Al-Begain
{"title":"An Enhanced Buffer Management Scheme for Multimedia Traffic in HSDPA","authors":"S. Yerima, K. Al-Begain","doi":"10.1109/NGMAST.2007.4343435","DOIUrl":"https://doi.org/10.1109/NGMAST.2007.4343435","url":null,"abstract":"High Speed Downlink Packet Access (HSDPA) enables higher data rate packet switch services over UMTS, creating opportunity to provide a variety of broadband multimedia applications. In HSDPA, buffering of downlink data in the base station (Node B) is required to fulfill the Medium Access Control (MAC) Packet Scheduling functionality. Additionally, flow control over the Iub interface that connects the Node B to the Radio Network Controller (RNC) is standardized in the 3GPP HSDPA technical specifications. Thus, buffer queue management schemes can be conveniently applied to improve downlink traffic QoS performance in HSDPA. Our previous work focused on a novel priority queuing scheme shown to be effective for QoS management of multimedia traffic with concurrent diverse flows towards a HSDPA end user. This paper presents an enhanced scheme that incorporates Iub flow control. A dynamic HSDPA simulator is developed to study the extended scheme, demonstrating the performance improvement achievable.","PeriodicalId":342172,"journal":{"name":"The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122250204","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
Middleware Framework for Resource Discovery in Mobile Environments 移动环境中资源发现的中间件框架
The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007) Pub Date : 2007-09-12 DOI: 10.1109/NGMAST.2007.4343419
J. Al-Jaroodi, N. Mohamed
{"title":"Middleware Framework for Resource Discovery in Mobile Environments","authors":"J. Al-Jaroodi, N. Mohamed","doi":"10.1109/NGMAST.2007.4343419","DOIUrl":"https://doi.org/10.1109/NGMAST.2007.4343419","url":null,"abstract":"In this paper, we introduce a middleware framework for collaborative resource discovery in pervasive environments. Collaborative resource discovery mechanisms are available to handle static to semi- static resources. However, incorporating dynamic mobile users introduces a different set of problems. First, how do we know when a resource becomes available? How do we identify the resource, its current location and its moving patterns? How do users know when a resource moves out? The introduced middleware framework provides mechanisms to dynamically discover resources, include them in the collective, and manage their mobility requirements. The framework involves the collaboration of software agents residing on the group members' nodes to collect, organize and efficiently exchange information. Through this exchange the resources will be updated and the members will be able to maintain connectivity and collaboration while they are on the move.","PeriodicalId":342172,"journal":{"name":"The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007)","volume":"26 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133864663","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
Kinetic User Interfaces for Flexible Mobile Collaboration 灵活移动协作的动态用户界面
The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007) Pub Date : 2007-09-12 DOI: 10.1109/NGMAST.2007.4343429
V. Pallotta, P. Bruegger, T. Maret, N. Martenet, B. Hirsbrunner
{"title":"Kinetic User Interfaces for Flexible Mobile Collaboration","authors":"V. Pallotta, P. Bruegger, T. Maret, N. Martenet, B. Hirsbrunner","doi":"10.1109/NGMAST.2007.4343429","DOIUrl":"https://doi.org/10.1109/NGMAST.2007.4343429","url":null,"abstract":"In this paper we address the problem of collaborative workflow in mobile environments. Specifically, we present a solution for opportunistic task assignment to mobile users based on location, context and motion awareness. As an example of this approach, we present an application based on the new Kinetic User Interface framework where users participate to dynamic workflow through their displacement in designated active zones.","PeriodicalId":342172,"journal":{"name":"The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007)","volume":"301 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115445460","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
A Secure Aggregation Protocol for Cluster-Based Wireless Sensor Networks With no Requirements for Trusted Aggregator Nodes 基于集群的无线传感器网络的无信任聚合节点安全聚合协议
The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007) Pub Date : 2007-09-12 DOI: 10.1109/NGMAST.2007.4343432
C. Bekara, M. Laurent-Maknavicius
{"title":"A Secure Aggregation Protocol for Cluster-Based Wireless Sensor Networks With no Requirements for Trusted Aggregator Nodes","authors":"C. Bekara, M. Laurent-Maknavicius","doi":"10.1109/NGMAST.2007.4343432","DOIUrl":"https://doi.org/10.1109/NGMAST.2007.4343432","url":null,"abstract":"Data aggregation is an important feature in wireless sensor networks (WSN), where data inputs at an aggregator node are merged to produce compact small output data, thus reducing the network's transmission overhead and preserving the scarce-battery resources of sensors. Unfortunately, if not secured against attackers, data aggregation can produce erroneous results, which can induce the network operator to take wrong decisions. In this paper, we present a secure aggregation protocol for cluster-based WSN, which is adapted to a large variety of aggregation functions, and which does not rely on trusted aggregator nodes. The inherent transmission overhead is even smaller than in other secure aggregation protocols.","PeriodicalId":342172,"journal":{"name":"The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116789426","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: 5
Performance of Internet Services over the UMTS Enhanced Uplink 基于UMTS增强型上行链路的互联网业务性能研究
The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007) Pub Date : 2007-09-12 DOI: 10.1109/NGMAST.2007.4343436
A. Mader, D. Staehle, C. Gosswein
{"title":"Performance of Internet Services over the UMTS Enhanced Uplink","authors":"A. Mader, D. Staehle, C. Gosswein","doi":"10.1109/NGMAST.2007.4343436","DOIUrl":"https://doi.org/10.1109/NGMAST.2007.4343436","url":null,"abstract":"The Enhanced Uplink or High Speed Uplink Packet Access (HSUPA) is designed to enable Internet applications in the uplink in UMTS networks. Its specification includes several new features which on the one hand increases throughput and decreases delay for the users, and on the other hand enables a better resource utilization on the network side. In this work, we explain the most prominent new features of the Enhanced Uplink and investigate their impact on the system and end-to-end performance with a special focus on different scheduling strategies. For the numerical results, a full-featured packet-level simulator has been implemented which enables the evaluation of UMTS networks with Rel. 99 users and Enhanced Uplink users in parallel.","PeriodicalId":342172,"journal":{"name":"The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124046433","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
Towards a Real Time Charging Framework for Complex Applications in 3GPP IP Multimedia System (IMS) Environment 面向3GPP IP多媒体系统(IMS)环境下复杂应用的实时收费框架
The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007) Pub Date : 2007-09-12 DOI: 10.1109/NGMAST.2007.4343413
H. Oumina, D. Ranc
{"title":"Towards a Real Time Charging Framework for Complex Applications in 3GPP IP Multimedia System (IMS) Environment","authors":"H. Oumina, D. Ranc","doi":"10.1109/NGMAST.2007.4343413","DOIUrl":"https://doi.org/10.1109/NGMAST.2007.4343413","url":null,"abstract":"Real time charging is crucial to telecom operators who base their return on investment on this type of billing that still seems both attractive and fair to customers. In the context of the shift of network technology to the all-IP paradigm under the IMS umbrella, and the consequent revolution in terms of services, the concept of real-time charging evolved as well to tackle the challenges of multimedia services and packet switching technologies. However, IMS adds the notion of service composition by the service session concept that adds further complexity to the charging task. In order to handle this complexity, the present contribution suggests a framework to model applications and real-time charging policies according to involved services and their characteristics. Also, it introduces the concept of multi-definition of the single service in IMS charging paradigm.","PeriodicalId":342172,"journal":{"name":"The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST 2007)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128512104","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: 10
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