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2009 Joint Conferences on Pervasive Computing (JCPC)最新文献

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Preliminary study of rain effect on channel gain of body area communication 降雨对体域通信信道增益影响的初步研究
2009 Joint Conferences on Pervasive Computing (JCPC) Pub Date : 2009-12-01 DOI: 10.1109/JCPC.2009.5420102
Yu Xie, Yinlin Li, Zhonghua Huang, Zhanzhong Cui
{"title":"Preliminary study of rain effect on channel gain of body area communication","authors":"Yu Xie, Yinlin Li, Zhonghua Huang, Zhanzhong Cui","doi":"10.1109/JCPC.2009.5420102","DOIUrl":"https://doi.org/10.1109/JCPC.2009.5420102","url":null,"abstract":"Body area communication could be a promising solution of next generation wearable networks for pervasive computing. The effect of rain on channel gain was analyzed and experimentally evaluated. A modified electric model of body channel was given and based on which the changing tendency of channel gain was studied. In rainy day, capacitances and resistances in the electric model will vary, which leads to the change of channel gain. Analysis results show that channel gain increases moderately with the capacitance between human body and transmit electrode or receive electrode, and decreases with the capacitance between human body and transmitter suspension ground or earth ground. The measurements of the body channel cover the frequency range from 100 kHz to 10MHz. Wet sponge was used to emulate the changing of air and clothes humidity. Results show that wet sponge brings perceptible change to received signal amplitude, which is in accord with the analysis result. Finally, channel gain was measured on wet lawn after rain. Results when barefoot and wearing shoes were compared as well as indoor trial. Channel gain is closely related to frequency when user is barefoot. The higher the frequency is, the less effect of ambient humidity is. Accordingly, a carrier frequency higher than 1MHz is recommended for rainy day application.","PeriodicalId":284323,"journal":{"name":"2009 Joint Conferences on Pervasive Computing (JCPC)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121163659","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
Fuzzy logic based traffic model considering cross-layer for future cognitive network 基于模糊逻辑的未来认知网络跨层流量模型
2009 Joint Conferences on Pervasive Computing (JCPC) Pub Date : 2009-12-01 DOI: 10.1109/JCPC.2009.5420108
Guangquan Chen, Mei Song, Yong Zhang, Junde Song, Yinglei Teng, Li Wang
{"title":"Fuzzy logic based traffic model considering cross-layer for future cognitive network","authors":"Guangquan Chen, Mei Song, Yong Zhang, Junde Song, Yinglei Teng, Li Wang","doi":"10.1109/JCPC.2009.5420108","DOIUrl":"https://doi.org/10.1109/JCPC.2009.5420108","url":null,"abstract":"Traffic models play an important role in nowadays' network, such as engineering, designing and evaluating the network and its performance. But performance predictions from wireless networking laboratory experiments seem to dismatch what is really deployed in future cognitive heterogeneous networks. To generate an appropriate traffic model is one of the major factors hampering researchers' ability to make reliable forecasts. This paper proposes a fuzzy logic based traffic model considering cross-layer for cognitive heterogeneous networks. The analyzed traffic is characterized by linkCongestion parameter which is the output of the fuzzy logic control system with the MAC counters: packet error rate to derive linkReliability, and received network layer parameter: latency to determine routing. The advantage of the traffic model using a fuzzy logic approach is that it does not make any statistical assumptions and does not require a huge data sets. It only uses a singleton fuzzifier, min inference and a defuzzifier, all of which are relatively simple and quick to compute. Hence it is fast and secure.","PeriodicalId":284323,"journal":{"name":"2009 Joint Conferences on Pervasive Computing (JCPC)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124565462","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 efficient object recognition system for humanoid robot vision 一种高效的仿人机器人视觉目标识别系统
2009 Joint Conferences on Pervasive Computing (JCPC) Pub Date : 2009-12-01 DOI: 10.1109/JCPC.2009.5420187
Wei-Hsuan Chang, Chih-Hsien Hsia, Y. Tai, Shih-Hung Chang, Fun Ye, Jen-Shiun Chiang
{"title":"An efficient object recognition system for humanoid robot vision","authors":"Wei-Hsuan Chang, Chih-Hsien Hsia, Y. Tai, Shih-Hung Chang, Fun Ye, Jen-Shiun Chiang","doi":"10.1109/JCPC.2009.5420187","DOIUrl":"https://doi.org/10.1109/JCPC.2009.5420187","url":null,"abstract":"The research of autonomous robots is one of the most important issues in recent years. In the numerous robot researches, the humanoid robot soccer competition is very popular. The robot soccer players rely on their vision systems very heavily when they are in the unpredictable and dynamic environments. This paper proposes a simple and fast real-time object recognition system for the RoboCup soccer humanoid league rules of the 2009 competition. This vision system can help the robot to collect various environment information as the terminal data to finish the functions of robot localization, robot tactic, barrier avoiding,…, etc. It can decrease the computing efforts by using our proposed approach, Adaptive Resolution Method (ARM), to recognize the critical objects in the contest field by object features which can be obtained easily. The experimental results indicate that the proposed approach can increase the real time and accurate recognition efficiency.","PeriodicalId":284323,"journal":{"name":"2009 Joint Conferences on Pervasive Computing (JCPC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121304151","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: 7
A computation trust model with confidence in unstructured P2P systems 非结构化P2P系统中具有置信度的计算信任模型
2009 Joint Conferences on Pervasive Computing (JCPC) Pub Date : 2009-12-01 DOI: 10.1109/JCPC.2009.5420144
Wang Ping, Qiu Jing, Qiu Yu Hui
{"title":"A computation trust model with confidence in unstructured P2P systems","authors":"Wang Ping, Qiu Jing, Qiu Yu Hui","doi":"10.1109/JCPC.2009.5420144","DOIUrl":"https://doi.org/10.1109/JCPC.2009.5420144","url":null,"abstract":"Trust is a fundamental issue in Pervasive computing, especially when they are applied in unstructured P2P systems. The computational models of trust play an important role in determining who and how to interact in open and dynamic environments. However, current models are not efficient or scalable enough with the expansion of system. To this end, a computation trust model with confidence is proposed in our paper, in which peers can autonomously deal with the biased information and identify trust with confidence in unstructured P2P systems with low overhead and better efficiency.","PeriodicalId":284323,"journal":{"name":"2009 Joint Conferences on Pervasive Computing (JCPC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115605844","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
Towards a world of totally identified objects 走向一个完全识别物体的世界
2009 Joint Conferences on Pervasive Computing (JCPC) Pub Date : 2009-12-01 DOI: 10.1109/JCPC.2009.5420210
K. Dimitrov, N. Mirenkov, K. Kanev
{"title":"Towards a world of totally identified objects","authors":"K. Dimitrov, N. Mirenkov, K. Kanev","doi":"10.1109/JCPC.2009.5420210","DOIUrl":"https://doi.org/10.1109/JCPC.2009.5420210","url":null,"abstract":"A concept of a novel infrastructure, where all or at least a large majority of the involved objects have their own identifiers (IDs), is introduced. The object IDs are to secure reliable access to the various object features and corresponding data, and to support the intelligent communication between human and computer worlds. Several technologies for object location and identification are analyzed and semantic surfaces are recognized as one of the most promising approaches. For the implementation of semantic surfaces, a comparison of image codes, based on their size, surface coverage and image density, and data capacity is conducted. Finally, a software system, named VIDI, which supports the visualization of various digital contents related to physical objects, is proposed and its design and organization is discussed.","PeriodicalId":284323,"journal":{"name":"2009 Joint Conferences on Pervasive Computing (JCPC)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130783525","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
The application and analysis of Population Viability Model of Przewalski's Gazelle 普氏原羚种群活力模型的应用与分析
2009 Joint Conferences on Pervasive Computing (JCPC) Pub Date : 2009-12-01 DOI: 10.1109/JCPC.2009.5420151
L. Luo, Yaonan Zhang, Yang Wang, Yonglin Wu, Zhi Xing
{"title":"The application and analysis of Population Viability Model of Przewalski's Gazelle","authors":"L. Luo, Yaonan Zhang, Yang Wang, Yonglin Wu, Zhi Xing","doi":"10.1109/JCPC.2009.5420151","DOIUrl":"https://doi.org/10.1109/JCPC.2009.5420151","url":null,"abstract":"Przewalski's Gazelle (Procapra przewalskii) is endemic to China and was classified as Critically Endangered by the International Union for Conservation of Nature (IUCN) in 1996. Once widespread, it has declined to 8 populations near Qinghai Lake. Subjected to the dual pressures of human activities and natural enemies, the gazelle is faced with the probability of extinction. By analyzing past years' statistical data, a Population Viability Model of Przewalski's Gazelle (PVMPG) was established. STELLA, a graphical-interface software, was used, first to establish the PVMPG model, and then to simulate environmental conditions and predict the future population viability. Finally, VORTEX software was used to forecast the probability of extinction of Przewalski's Gazelle in 100 years, to verify the reliability and rationality of the PVMPG model that was developed using STELLA. The results will provide the theoretical basis for the Przewalski's Gazelle population's protection.","PeriodicalId":284323,"journal":{"name":"2009 Joint Conferences on Pervasive Computing (JCPC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125306359","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
PB-FCFS-a task scheduling algorithm based on FCFS and backfilling strategy for grid computing 基于FCFS和回填策略的网格计算任务调度算法
2009 Joint Conferences on Pervasive Computing (JCPC) Pub Date : 2009-12-01 DOI: 10.1109/JCPC.2009.5420131
Hong Jiang, Tianwei Ni
{"title":"PB-FCFS-a task scheduling algorithm based on FCFS and backfilling strategy for grid computing","authors":"Hong Jiang, Tianwei Ni","doi":"10.1109/JCPC.2009.5420131","DOIUrl":"https://doi.org/10.1109/JCPC.2009.5420131","url":null,"abstract":"In a task scheduling system for grid computing, most of algorithms such as reservation, backfilling, etc. are commonly used task scheduling algorithm. However, they have some insufficiencies in the system resource utilization rate and the response time due to these algorithms are insufficient in solving resource slot. In order to improve the system resource utilization rate and shorten the response time, this paper presents PB-FCFS algorithm which is a task scheduling algorithm based on FCFS and backfilling strategy for grid computing. The PB-FCFS algorithm combines backfilling and priority scheduling strategy, as well considers the resource recycling at the time of task accomplished. The simulation results show that the PB-FCFS algorithm shortens task run time and improves the system throughput rate and resource utilization rate to a certain extent.","PeriodicalId":284323,"journal":{"name":"2009 Joint Conferences on Pervasive Computing (JCPC)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123982583","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: 23
Hierarchical role-specific task-based user interfaces for the mobile phone 用于移动电话的分层角色特定任务用户界面
2009 Joint Conferences on Pervasive Computing (JCPC) Pub Date : 2009-12-01 DOI: 10.1109/JCPC.2009.5420136
S. Loke, A. Almagrabi
{"title":"Hierarchical role-specific task-based user interfaces for the mobile phone","authors":"S. Loke, A. Almagrabi","doi":"10.1109/JCPC.2009.5420136","DOIUrl":"https://doi.org/10.1109/JCPC.2009.5420136","url":null,"abstract":"A mobile phone contains an increasingly large set of functions (tasks) that one can perform. We focus on the issue of task based interfaces for the mobile phone. We apply the paradigm of task computing to mobile phone user interface design in order to enable the mobile phone functionalities to be accessed in a more efficient way that meet the needs of different users.","PeriodicalId":284323,"journal":{"name":"2009 Joint Conferences on Pervasive Computing (JCPC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121469368","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
A spontaneous preference aware service composition framework for Message-Oriented Pervasive systems 面向消息普适系统的自发偏好感知服务组合框架
2009 Joint Conferences on Pervasive Computing (JCPC) Pub Date : 2009-12-01 DOI: 10.1109/JCPC.2009.5420146
Shin-Chih Chang, Chun-Feng Liao, Yong-Cheng Liu, L. Fu, Ching-Yao Wang
{"title":"A spontaneous preference aware service composition framework for Message-Oriented Pervasive systems","authors":"Shin-Chih Chang, Chun-Feng Liao, Yong-Cheng Liu, L. Fu, Ching-Yao Wang","doi":"10.1109/JCPC.2009.5420146","DOIUrl":"https://doi.org/10.1109/JCPC.2009.5420146","url":null,"abstract":"Current trends suggest that the Pervasive systems should be adaptive and flexible. Many Message-Oriented Pervasive systems have been proposed to support on-line self-composition of services in reaction to changing contexts. However, most existing service composition mechanisms either do not consider user preferences or use proprietary typing systems. In this paper, we propose an extensible ontology-based autonomous service composition framework for Message-Oriented Pervasive systems. System developers can reconfigure this framework according to their application domains by overriding default hook functions. Experimental results show that the superiority1 of the proposed approach become obvious along with increasing number of nodes.","PeriodicalId":284323,"journal":{"name":"2009 Joint Conferences on Pervasive Computing (JCPC)","volume":"262 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123021301","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
An efficient framework for detecting moving objects and structural lanes in video based surveillance systems 视频监控系统中运动物体和结构车道的有效检测框架
2009 Joint Conferences on Pervasive Computing (JCPC) Pub Date : 2009-12-01 DOI: 10.1109/JCPC.2009.5420162
Zongmin Li, Liangliang Zhong
{"title":"An efficient framework for detecting moving objects and structural lanes in video based surveillance systems","authors":"Zongmin Li, Liangliang Zhong","doi":"10.1109/JCPC.2009.5420162","DOIUrl":"https://doi.org/10.1109/JCPC.2009.5420162","url":null,"abstract":"In this paper, we present a video based detection framework for Intelligent Transportation System. We combine the invariant color features with GMM background model to eliminate shadows and highlighted background regions during moving object segmentation. Then we provide a novel global motion detector to detect camera motions. Finally, we introduce a lane detection technique for automatic structural road detection. Experiments shows that our proposed framework can provide well inputs for vehicle tracking and traffic information detection systems and has computation cost.","PeriodicalId":284323,"journal":{"name":"2009 Joint Conferences on Pervasive Computing (JCPC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129159484","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
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