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2010 International Conference on Communications and Mobile Computing最新文献

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A Novel Cooperative Routing Strategy for Wireless Broadcast Communication 一种新的无线广播通信协同路由策略
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.204
Liubin Song, Jiang Yu, Youyun Xu, Wei Xie
{"title":"A Novel Cooperative Routing Strategy for Wireless Broadcast Communication","authors":"Liubin Song, Jiang Yu, Youyun Xu, Wei Xie","doi":"10.1109/CMC.2010.204","DOIUrl":"https://doi.org/10.1109/CMC.2010.204","url":null,"abstract":"In wireless communication, it is enough to transmit the same information only once to reach a group of users due to the broadcast nature of wireless media. However, some users may fail to receive as a result of channel fading and etc. Cooperative communication can make use of space diversity to enhance communication quality. In this paper, we proposed a novel cooperative routing strategy for wireless broadcast communication to improve the system throughput with slight packet loss.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115868499","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
A Multiple Hierarchies RBAC Model 多层次RBAC模型
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.117
Yan Xuexiong, Wang Qinxian, Xu Changzheng
{"title":"A Multiple Hierarchies RBAC Model","authors":"Yan Xuexiong, Wang Qinxian, Xu Changzheng","doi":"10.1109/CMC.2010.117","DOIUrl":"https://doi.org/10.1109/CMC.2010.117","url":null,"abstract":"When a role in the classic hierarchy RBAC model gets more inherited permissions than the anticipant permissions of the administrator, there is the issue of excessive inheritance. This issue is addressed and a multiple hierarchies RBAC model is presented which extends from the classic hierarchy RBAC model in three aspects. Firstly, the multiple hierarchies RBAC model can classify the permissions of the roles. Secondly, it supports multiple hierarchies which are used to classify the partial order relations. Thirdly, it redefines the semantics of partial order to support partial permissions inheritance. The multiple hierarchies RBAC model is more general and flexible than the other modes derived from the classic model, and it improves the capability of the RBAC model.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122444283","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
Buffer Optimal Control Algorithm for Broadband Satellite Networks 宽带卫星网络的缓冲最优控制算法
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.341
He Ning, Wang Lei
{"title":"Buffer Optimal Control Algorithm for Broadband Satellite Networks","authors":"He Ning, Wang Lei","doi":"10.1109/CMC.2010.341","DOIUrl":"https://doi.org/10.1109/CMC.2010.341","url":null,"abstract":"To solve the buffer management problem in Broadband satellite Networks, based on the IPA (Infinitesimal Perturbation Analysis) method, a new algorithm was proposed. The algorithm regarded the buffer management problem as one minimization of the performance function with the decision variable (specially, the buffer threshold) describing the nod with SFM (Stochastic Fluid Model). IPA technique was used to derive sensitivity estimators for the performance function, thus provided SA (Stochastic Approximation) algorithms capable to optimally minimize the performance cost based on IPA gradient. The algorithm can be evaluated based on data observed from the sample path of the real system without any pre-knowledge of the inflow.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122633434","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
OSDN: A Novel Platform for Service Distribution through Overlay Routing OSDN:一种新的覆盖路由服务分发平台
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.31
Xiao Chen, Nianzu Liu, Weinong Wang
{"title":"OSDN: A Novel Platform for Service Distribution through Overlay Routing","authors":"Xiao Chen, Nianzu Liu, Weinong Wang","doi":"10.1109/CMC.2010.31","DOIUrl":"https://doi.org/10.1109/CMC.2010.31","url":null,"abstract":"While a variety of routing algorithms have been invented for overlay networks, only a few studies focus on the placement problem of overlay nodes. However, the performance of overlay routing always depends on the routing policy of the underlying Internet, such as BGP routing. According to the BGP routing policy, the result routing path heavily depends on the locations of the two end nodes. By placing overlay nodes into selected AS (autonomous system) domains, the overlay network could be more efficient in service distribution than the traditional CDN (service distribution network) could be. Thus we propose OSDN (Overlay Service Distribution Network) as a novel platform to build connection between content service providers and end users from every corner of the Internet.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"27 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120865101","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
pH Levels Classification by Color Quantization on a Camera Phone 在照相手机上通过颜色量化来分类pH值
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.322
N. K. Vuong, Syin Chan, C. Lau
{"title":"pH Levels Classification by Color Quantization on a Camera Phone","authors":"N. K. Vuong, Syin Chan, C. Lau","doi":"10.1109/CMC.2010.322","DOIUrl":"https://doi.org/10.1109/CMC.2010.322","url":null,"abstract":"In this paper, we present a mobile healthcare application that applies color quantization technique in analysis of color images taken by a camera phone to automate pH classification of medical tests. Experimental results and comparative study have demonstrated the advantages of this new approach in terms of efficiency, accuracy, and robustness over the solution developed earlier based on edge detectors.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121213996","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
SensorWorld: Unified Touch-Based Access to Sensors Worldwide SensorWorld:统一的基于触摸的全球传感器访问
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.321
Hanjun Xian, K. Madhavan
{"title":"SensorWorld: Unified Touch-Based Access to Sensors Worldwide","authors":"Hanjun Xian, K. Madhavan","doi":"10.1109/CMC.2010.321","DOIUrl":"https://doi.org/10.1109/CMC.2010.321","url":null,"abstract":"Sensors play a critical role in monitoring environmental metrics, predicting natural hazards and developing sustainable policies. However, policy makers, engineers, scientists, students, and other stakeholders in fields such as environmental and natural resources management very rarely have access to real-world large-scale sensor data. This problem is compounded significantly by diverse and non-standard software interfaces to sensors. Our goal is to document and make available data from a large variety of real-world sensors through an intuitive interface. Our project addresses this problem by implementing a middleware framework and a client on iPhone to facilitate access to sensor data. Currently, we support a total of 1136 sensors from a variety of sources and the dataset is being rapidly expanded.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127087936","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 Novel Time and Frequency Synchronization Estimator for CMMB Systems 一种新的CMMB系统时频同步估计器
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.223
Ruimin Wang, Hui Li
{"title":"A Novel Time and Frequency Synchronization Estimator for CMMB Systems","authors":"Ruimin Wang, Hui Li","doi":"10.1109/CMC.2010.223","DOIUrl":"https://doi.org/10.1109/CMC.2010.223","url":null,"abstract":"The time-frequency synchronization algorithm is a critical part for the OFDM (Orthogonal Frequency Division Multiplexing) technology used in the CMMB (China Mobile Multimedia Broadcasting) systems. Several time-frequency synchronization methods have been proposed for CMMB systems, however, the amount of calculating the time-frequency offset is huge. This paper proposes a new algorithm for time-frequency synchronization, the FFT points of this algorithm is only 50% of the traditional algorithm, and the process of extracting pilot is saved. Theoretical analysis and simulations show that this algorithm can work well under low SNR(-2db) channel, and reduces the complexity of hardware and computation by 50%.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126079858","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
Information-Disturbance Tradeoff of Individual Attack Against BBM92 Protocol 针对BBM92协议的个体攻击的信息干扰权衡
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.173
Chun Zhou, Wansu Bao, Xiangqun Fu
{"title":"Information-Disturbance Tradeoff of Individual Attack Against BBM92 Protocol","authors":"Chun Zhou, Wansu Bao, Xiangqun Fu","doi":"10.1109/CMC.2010.173","DOIUrl":"https://doi.org/10.1109/CMC.2010.173","url":null,"abstract":"This paper addresses an individual attack strategy against BBM92 protocol. By constructing a map from the measurement result to the initial state, we find this individual attack is essentially equivalent to the discrimination attack against BB84 protocol. The optimal tradeoff between the guessing capability and disturbance quantity is explicitly deducted and the optimal measurement that saturates the tradeoff bound is also presented.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125297757","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
Application Sandbox Model Based on System Call Context 基于系统调用上下文的应用程序沙盒模型
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.77
Zhen Li, Hongyun Cai, Junfeng Tian, Wuyang Chen
{"title":"Application Sandbox Model Based on System Call Context","authors":"Zhen Li, Hongyun Cai, Junfeng Tian, Wuyang Chen","doi":"10.1109/CMC.2010.77","DOIUrl":"https://doi.org/10.1109/CMC.2010.77","url":null,"abstract":"An application sandbox model based on system call context is proposed and applied to intrusion detection. It overcomes some drawbacks of traditional special-purpose sandboxes: inconvenience for selecting sandbox with user involvement and inaccuracy of intrusion detection for different applications of the same class. The application sandbox, modeling for an application, introduces the improved program behavioral automaton, focuses on both control flow and data flow information involving system call arguments, and uses a new approach for presentation of system call context by context value. The experimental results show that our model can capture the system call context accurately with low time overhead and can well detect intrusions based on control flow and data flow.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"88 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121015190","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 New ICI Self-Cancellation Method with Double Bandwidth Efficiency in OFDM Systems OFDM系统中一种新的双带宽效率ICI自抵消方法
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.94
JunLe Fan, Yongjiang Hu, Zili Chen
{"title":"A New ICI Self-Cancellation Method with Double Bandwidth Efficiency in OFDM Systems","authors":"JunLe Fan, Yongjiang Hu, Zili Chen","doi":"10.1109/CMC.2010.94","DOIUrl":"https://doi.org/10.1109/CMC.2010.94","url":null,"abstract":"Orthogonal Frequency Division Multiplexing (OFDM) is sensitive to carrier frequency offset (CFO) which will cause intercarrier interference (ICI). Frequency offset estimation and compensation scheme can estimate and compensate CFO. But due to the white Gaussian noise, the estimated CFO is inaccurate. In order to eliminate the residual CFO, the ICI self-cancellation scheme proposed by Y. Zhao[3] is adopted. However the major disadvantage of ICI self-cancellation is low bandwidth efficiency. So this paper presents an ameliorated ICI cancellation scheme, which estimates and compensates the CFO first and then adopts ICI self-cancellation to suppress the residual CFO. In addition, a method is used to double the bandwidth efficiency. The results show that the ameliorated scheme can reduce ICI significantly and improve the bandwidth efficiency.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"59 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127383818","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
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