2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing最新文献_第2页

Top-k Queries in Wireless Sensor Networks Leveraging Hierarchical Grid Index 利用分层网格索引的无线传感器网络Top-k查询

2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing Pub Date : 2014-07-02 DOI: 10.1109/IMIS.2014.51

Jine Tang, Zhenhua Wang, Yunchuan Sun, Chu Du, Zhangbing Zhou

引用次数: 3

Mobile Gateway for Ubiquitous Health Care System Using ZigBee and Bluetooth 基于ZigBee和蓝牙的普适医疗保健系统移动网关

2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing Pub Date : 2014-07-02 DOI: 10.1109/IMIS.2014.17

T. Laine, Chaewoo Lee, Haejung Suk

{"title":"Mobile Gateway for Ubiquitous Health Care System Using ZigBee and Bluetooth","authors":"T. Laine, Chaewoo Lee, Haejung Suk","doi":"10.1109/IMIS.2014.17","DOIUrl":"https://doi.org/10.1109/IMIS.2014.17","url":null,"abstract":"A ubiquitous health care system takes the advantage of portability and small size of wireless sensor nodes to provide remote health care services and real-time health monitoring. A gateway is needed to mediate communication between a local sensor network and remote data consumers. In current implementations of ubiquitous health care systems ZigBee-based sensors are often used to gather vital sign data such as ECG and heart rate. Transferring large quantities of vital signs from a ZigBee-based sensor sink node to a gateway requires a bandwidth that ZigBee alone is not able to provide. In this paper, we present a technical design of a Bluetooth-based mobile gateway that bridges the connection between a sensor network and the Internet. Our system enables ubiquitous health care experience while providing a platform for additional services such as alarms, notifications and analysis of medical data. Controlling a sensor network from the mobile gateway is also possible. The flexible design of the system does not restrict its usage only to health care services - the gateway can be configured to work with any kind of sensor network having a sink node with Bluetooth capability.","PeriodicalId":345694,"journal":{"name":"2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130938665","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: 36

The Effect of TDMA Frame Size and the Hidden Node Problem on the Performance of a Neighbor-Aware VANET MAC TDMA帧大小和隐节点问题对邻居感知VANET MAC性能的影响

2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing Pub Date : 2014-07-02 DOI: 10.1109/IMIS.2014.40

M. J. Booysen, G. Rooyen

{"title":"The Effect of TDMA Frame Size and the Hidden Node Problem on the Performance of a Neighbor-Aware VANET MAC","authors":"M. J. Booysen, G. Rooyen","doi":"10.1109/IMIS.2014.40","DOIUrl":"https://doi.org/10.1109/IMIS.2014.40","url":null,"abstract":"Despite various proposed Medium Access Control (MAC) approaches, efficient medium access in VANET remains a significant challenge for the broadcast of safety messages. A key contributing factor, especially with the high node mobility apparent in VANET, is the hidden terminal problem. Since the hidden terminal problem is fundamentally a problem of lack of awareness, increased neighbor awareness at the MAC layer has been suggested as a possible solution. An increased awareness of neighboring nodes' slot allocation requires an increased number of TDMA slots. In this paper we evaluate the impact of TDMA frame size in a neighbor-aware MAC. An analytical model is developed to support the simulation results, based on a geographical probability of RF interference and the slot allocation scheme used in the TDMA MAC. The results show that the packet delivery increases with increased TDMA frame size to support neighbor awareness, as the probability for packet collisions decrease. Packet delivery decreases with increases in neighbor count, since more nodes cause packet collisions. The receiver throughput initially increases as TDMA frame size is increased, since more transmission opportunities occur, and packet delivery increases. However, when the TDMA increases beyond an optimal, throughput is adversely affected by underutilization. Despite the decrease in packet delivery ratio, receiver throughput is higher for more nodes.","PeriodicalId":345694,"journal":{"name":"2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132688128","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: 3

Construction of Scholarly n-Gram from Huge Text Data 基于海量文本数据的学术n-Gram构建

2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing Pub Date : 2014-07-02 DOI: 10.1109/IMIS.2014.4

Myunggwon Hwang, Ha-neul Yeom, Mi-Nyeong Hwang, Hanmin Jung

引用次数: 0

Anonymous Authentication Scheme Based on Proxy Group Signature for Wireless MESH Network 基于代理组签名的无线MESH网络匿名认证方案

2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing Pub Date : 2014-07-02 DOI: 10.1109/IMIS.2014.78

Tianhan Gao, Qidi Miao, Nan Guo

引用次数: 4

Energy Efficiency of Bandwidth Expansion Algorithms in Wireless Communication Systems 无线通信系统中带宽扩展算法的能量效率

2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing Pub Date : 2014-07-02 DOI: 10.1109/IMIS.2014.67

Yung-Fa Huang, Chuan-Bi Lin, Chia-Chi Chang, Che-Hao Li, Ching-Mu Chen

引用次数: 0

A Dissemination Analysis in Mobile Wireless Ad Hoc Networks Using Probabilistic Broadcast 基于概率广播的移动无线自组网传播分析

2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing Pub Date : 2014-07-02 DOI: 10.1109/IMIS.2014.15

Daniel Gutiérrez-Reina, S. T. Marín, E. Asimakopoulou, N. Bessis, F. Barrero

{"title":"A Dissemination Analysis in Mobile Wireless Ad Hoc Networks Using Probabilistic Broadcast","authors":"Daniel Gutiérrez-Reina, S. T. Marín, E. Asimakopoulou, N. Bessis, F. Barrero","doi":"10.1109/IMIS.2014.15","DOIUrl":"https://doi.org/10.1109/IMIS.2014.15","url":null,"abstract":"Broadcast schemes play an important role in the performance of mobile ad hoc networks. They are widely used as a dissemination mechanism and as a part of the discovery phase of routing protocols. The simple flooding algorithm is the usual mechanism employed in mobile ad hoc networks, but it has been demonstrated its inefficiency in congested scenarios due to the high number of collisions and contentions. These problems can be partially alleviated by using a probabilistic broadcast scheme in which every node forwards the incoming packets according to a certain forwarding probability. In this paper we use the simple probabilistic broadcast scheme to evaluate the effects of congestion on the performance of broadcasting in ad hoc networks through a mediation analysis. We hypothesize that the congestion mediates in the relationship between the forwarding probability (independent variable) and the output metric (dependent variable). The simulation results prove the existence of the mediating effects and how such effects are counterbalanced depending on the target use of the probabilistic broadcast scheme.","PeriodicalId":345694,"journal":{"name":"2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing","volume":"430 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115933157","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

New Privacy-Preserving Method for Matching Location Data 一种新的位置数据匹配隐私保护方法

2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing Pub Date : 2014-07-02 DOI: 10.1109/IMIS.2014.89

Mebae Ushida, Yuji Yamaoka, Kouichi Itoh, H. Tsuda

{"title":"New Privacy-Preserving Method for Matching Location Data","authors":"Mebae Ushida, Yuji Yamaoka, Kouichi Itoh, H. Tsuda","doi":"10.1109/IMIS.2014.89","DOIUrl":"https://doi.org/10.1109/IMIS.2014.89","url":null,"abstract":"The development of the GPS has recently increased the demand for the beneficial services from the mobile users' location data. If the location data are collected from various organizations, more beneficial services will be provided. However, the organizations are never able to share their location data, because they must avoid their users' privacy information leakage. Therefore, we propose a new system that (i) organizations transform the location data into secured location data that protects users' location information and send them to the third party called mediator and, (ii) the mediator provides beneficial services from the secured location data. We focus on the service that the mediator finds users who are nearby from all users over multiple organizations (one-to-many private location matching). In previous techniques, a user can judge another user (e.g., his/her friend) is close or not by using the secured location data (one-to-one private location matching). We also propose a new scheme that the mediator can perform one-to-many matching without users' privacy information leakage. Our scheme is the first result that realizes one-to-many matching without users' huge task and leaking their privacy.","PeriodicalId":345694,"journal":{"name":"2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115976934","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

Minimum Cost Content Object Reconstruction in Multi-tier Servers 多层服务器中最小成本内容对象重构

2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing Pub Date : 2014-07-02 DOI: 10.1109/IMIS.2014.76

Lung-Pin Chen, Chih-Wei Hsieh, Fang-Yie Leu

引用次数: 0

Anonymous Credential-Based Privacy-Preserving Identity Verification for Business Processes 基于匿名凭证的业务流程隐私保护身份验证

2014 Eighth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing Pub Date : 2014-07-02 DOI: 10.1109/IMIS.2014.80

Nan Guo, Y. Jin, Kangbin Yim

引用次数: 6