The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)最新文献_第5页

Study of relay selection for dual-hop networks under secrecy constraints with multiple eavesdroppers 多窃听者保密约束下双跳网络中继选择研究

The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027442

H. Vu, Vo Nguyen Quoc Bao

引用次数: 6

On functionality extension of the digital signature standards 论数字签名标准的功能扩展

The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027423

M. H. Nguyen, Duy N. Ho, Dung H. Luu, A. Moldovyan, N. Moldovyan

引用次数: 4

Partial reuse of QAM signal points for BICM-ID systems BICM-ID系统QAM信号点的部分复用

The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027426

Quảng Tuân Nguyễn, Quoc Trinh Do, X. Tran, T. Dinh, H. Huynh

引用次数: 1

Adaptive exploitation of cyclostationarity features for detecting modulated signals 自适应利用循环平稳特征检测调制信号

The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027450

Quang Thai, S. Reisenfeld

引用次数: 2

Implementing un-identified communication in Ubiquitous phone System 在泛在电话系统中实现无标识通信

The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027460

T. Nguyen, B. Moon

{"title":"Implementing un-identified communication in Ubiquitous phone System","authors":"T. Nguyen, B. Moon","doi":"10.1109/ATC.2011.6027460","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027460","url":null,"abstract":"Context awareness plays an important role in Ubiquitous applications based on the context information to provide services adapting to users' needs. The advantages of some context-aware smart phone systems, including iCAM[1], contextPhone[2], Live Contact Project [3], Enhanced Telephony[4] and Ubiquitous phone System Ubiphone [5] show themselves to be typical examples of Ubiquitous service ones. Using a context-aware smart phone, we can contact individuals in many ways, including by home, office, or cell phone, short message service (SMS), instance message(IM), and email. Therefore, a human-centered smart phone could discover how best to reach a contact at any given moment. However, in these systems, the users can contact to people in the contact list only, and the context information is managed and referred on only one ontology tree in one domain which contraries to the reality that in Ubiquitous environment. In this environment, the context information such as concepts and relationships are also managed and referred on heterogeneous ontology in several domains, which drive new challenges in the discovery of knowledge sources relevant to a users' request. New efficient technique and approach for developing and extending Ubiquitous phone intelligence is presented in this paper, which combines agent-based technologies and Artificial Neural Networks (ANNs) models to match ontology, helping users search and contact with anyone outside the contact list satisfying the users' requests even there is no social relationship between them.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"170 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120985513","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

Scene-based video super-resolution with minimum mean square error estimation 基于最小均方误差估计的场景视频超分辨率

The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027433

Cao Bui-Thu, T. Do-Hong, T. Le-Tien, Hoang Nguyen-Duc

{"title":"Scene-based video super-resolution with minimum mean square error estimation","authors":"Cao Bui-Thu, T. Do-Hong, T. Le-Tien, Hoang Nguyen-Duc","doi":"10.1109/ATC.2011.6027433","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027433","url":null,"abstract":"Motion estimation is a key problem in video super-resolution (SR). If the estimation is highly accurate then the high resolution (HR) frames reconstructed is better in quality. Otherwise with small errors in estimation, they will create more degradation in the reconstructed HR frames. In many recent studies, the motion estimation is applied on every block of pixels. There is too little input data for estimating process so that it is hard to get high accuracy in results. This paper presents a new method for SR video image reconstruction through two main ideas. First, video frames are separated into two sections, as scene and motive objects. The motions of the scene are the same and uniform. We will have much data for estimating, so that the result can be more accurate. Second, the motion estimation is based on three parameters, rotation and shifts in vertical and horizontal. It presents a perfectly estimating for real motion of camera when capturing video frames. Based on that, an efficient algorithm is proposed by combination of block matching search method and minimum mean square error estimation. The results of the proposed algorithm are more accurate than those of other recent algorithms. It can be easy to see one we visualize the HR video frames reconstructed by other algorithms.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126485231","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 improved iterative nonlinear least square approximation method for the design of measurement-based wideband mobile radio channel simulators 一种改进的迭代非线性最小二乘逼近法设计基于测量的宽带移动无线电信道模拟器

The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027446

A. Fayziyev, M. Patzold

{"title":"An improved iterative nonlinear least square approximation method for the design of measurement-based wideband mobile radio channel simulators","authors":"A. Fayziyev, M. Patzold","doi":"10.1109/ATC.2011.6027446","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027446","url":null,"abstract":"This paper deals with the design of measurement-based simulation models for wideband single-input single-output (SISO) mobile radio channels. We present an improved version of the iterative nonlinear least square approximation (INLSA) method for computing the parameters of measurement-based simulation models. The proposed method aims to fit the temporal-frequency correlation function (TFCF) of the simulation model to that of the measured channel. Unlike the original INLSA method, the proposed approach provides a unique optimal set of estimated model parameters. The proposed iterative procedure involves numerical optimization techniques to determine a set of parameters that minimizes the Euclidian norm of the fitting error. Our investigations show that the proposed method performs well in terms of the goodness of fit to the measured data. The new method is relatively simple and can be used for the design of measurement-based wideband channel simulators, which are important for the performance analysis of mobile communication systems under real-world propagation conditions.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126108309","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: 8

The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027458

Thi Hien Pham, Tien Trung Do, Thi-Vu-Anh Ha, Luong Pham Van

引用次数: 0

A load-balanced and mobility-aware routing protocol for vehicular ad-hoc networks 车辆自组织网络的负载平衡和移动感知路由协议

The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027430

Tien Dung Nguyen, Tien Pham Van, Tuan Do Trong, T. Nguyen, Huong Nguyen Thi, Hang Nguyen Thi

{"title":"A load-balanced and mobility-aware routing protocol for vehicular ad-hoc networks","authors":"Tien Dung Nguyen, Tien Pham Van, Tuan Do Trong, T. Nguyen, Huong Nguyen Thi, Hang Nguyen Thi","doi":"10.1109/ATC.2011.6027430","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027430","url":null,"abstract":"VANET (Vehicular Ad-hoc NETwork) is comprised of devices that are installed inside vehicles and on road sides. Since vehicles can move randomly and at various velocities, the network topology is highly dynamic. Consequently, links between network nodes could be broken at anytime and communications from vehicle to vehicle could be corrupted. For this reason, a routing protocol independent of the network topology should be considered. Moreover, it should take into account throughput at intermediate nodes to avoid overloading. In this study, we introduce a new load-balanced routing protocol in which the well-known location-aware GPSR [1] (Greedy Perimeter Stateless Routing) is redesigned to accommodate dynamics of vehicles. In the proposed protocol (called load-balanced GPSR), traffic traversing nodes are reported to the route calculation process that also requests for update of node position regularly. Specifically, the load-balanced protocol not only considers the movement of network nodes, but also analyzes packet queues of neighbor nodes while selecting the best route to forward data.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132275762","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

Joint adaptive modulation and switching schemes for opportunistic cooperative networks 机会合作网络的联合自适应调制和交换方案

The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027438

Vo Nguyen Quoc Bao, Pham Lan Phuong Bui, Thien-Thanh Tran

引用次数: 0