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IEEE International Conference on Communications

作者： Navod Suraweera Norman C. Beaulieu Department of Electrical and Computer Engineering University of Alberta School of Information and Communication Engineering and Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecomunications (BUPT)

ISBN: (纸本)9781467364300

The performance of optimum combining (OC) in decode-and forward (DF) relaying in the presence of a Poisson field of interferers is analyzed. An approximation for the outage probability of the OC receiver is derived by considering the temporal correlation of the interference. Despite the randomness of the number and the locations of the interferers, the OC receiver suppresses the interference at the destination node and diversity gains are achieved, provided that the relay nodes are noise limited. For single-antenna relay nodes, the end-to-end performance is vulnerable to interference at the relay nodes which is not canceled, resulting in zero diversity gains.

关键词： DF relaying Interference Optimum combining Outage probability Poisson point processes

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A QoE-Driven FEC Rate Adaptation Scheme for Scalable Video Transmissions over MIMO systems

A QoE-Driven FEC Rate Adaptation Scheme for Scalable Video T...

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IEEE International Conference on Communications

作者： Xiang Chen Haiqing Du Jenq-Neng Hwang James A. Ritcey Chung-Nan Lee Department of Electrical Engineering University of Washington Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications Department of Computer Science and Engineering National Sun Yat-Sen University

ISBN: (纸本)9781467364300

We propose a forward error correction (FEC) coding rate adaptation scheme which maximizes the quality of experience (QoE), for scalable video coding (SVC) based video transmissions over multi-input multi-output (MIMO) systems. The proposed scheme adaptively selects the best set of spatial channels, number of video layers and their corresponding FEC coding rate according to channel state information (CSI) from the receiver. Unlike previous work, our proposed scheme distributes the FEC encoded bit streams to multiple spatial channels so that additional diversity gains can be obtained. Due to the complexity of the optimization, we decompose the original problem into several sub-problems, which can then be solved by a heuristic algorithm. The optimal solution can be found by choosing the best among all the candidate solutions obtained from the sub-problems. The effectiveness and superb performance of our proposed scheme can be demonstrated by many simulations with different videos and channel conditions.

关键词： FEC QoE SVC MIMO Rate adaptation

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A Unified Framework for Wireless Connectivity Study subject to General Interference Attack

A Unified Framework for Wireless Connectivity Study subject ...

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IEEE International Conference on Communications

作者： Yang Liu Chengzhi Li Changchuan Yin Huaiyu Dai Beijing Key Laboratory of Network System Architecture Convergence Beijing University of Posts and Telecommunications Beijing China Department of Electrical and Computer Engineering North Carolina State University Raleigh NC

Connectivity is crucial to ensure information availability and survivability for wireless networks. In this paper, we propose a unified framework to study the connectivity of wireless networks under a general type of interference attack, which can address diverse applications including Cognitive Radio, Jamming attack and shadowing effect. By considering the primary users, jammers and deep fading as unified Interferers, we investigate a 3-dimensional connectivity region, defined as the set of key system parameters - the density of users, the density of Interferers and the interference range of Interferers - with which the network is connected. Further we study the impact of the Interferers' settings on node isolation probability, which is a fundamental local connectivity metric. Through percolation theory, the sufficient and necessary conditions for global connectivity are also derived. Our study is supported by simulation results.

关键词： Interference Three-dimensional displays Jamming Wireless networks Security Shadow mapping Information systems

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RETRACTED ARTICLE: Modelling thermal comfort of visitors at urban squares in hot and arid climate using NN-ARX soft computing method

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Theoretical and Applied Climatology 2015年第3期124卷 991-1004页

作者： Shahab Kariminia Shervin Motamedi Shahaboddin Shamshirband Jamshid Piri Kasra Mohammadi Roslan Hashim Chandrabhushan Roy Dalibor Petković Hossein Bonakdari Department of Architecture Faculty of Art Architecture and Urban Planning Najafabad Branch Islamic Azad University Najafabad Iran Department of Civil Engineering Faculty of Engineering University of Malaya Kuala Lumpur Malaysia Institute of Ocean and Earth Sciences University of Malaya Kuala Lumpur Malaysia Department of Computer System and Technology Faculty of Computer Science and Information Technology University of Malaya Kuala Lumpur Malaysia Department of Water Engineering Soil and Water College University of Zabol Zabol Iran Faculty of Mechanical Engineering University of Kashan Kashan Iran Faculty of Mechanical Engineering Department for Mechatronics and Control University of Niš Niš Serbia Department of Civil Engineering Razi University Kermanshah Iran

Visitors utilize the urban space based on their thermal perception and thermal environment. The thermal adaptation engages the user’s behavioural, physiological and psychological aspects. These aspects play critical roles in user’s ability to assess the thermal environments. Previous studies have rarely addressed the effects of identified factors such as gender, age and locality on outdoor thermal comfort, particularly in hot, dry climate. This study investigated the thermal comfort of visitors at two city squares in Iran based on their demographics as well as the role of thermal environment. Assessing the thermal comfort required taking physical measurement and questionnaire survey. In this study, a non-linear model known as the neural network autoregressive with exogenous input (NN-ARX) was employed. Five indices of physiological equivalent temperature (PET), predicted mean vote (PMV), standard effective temperature (SET), thermal sensation votes (TSVs) and mean radiant temperature (T mrt) were trained and tested using the NN-ARX. Then, the results were compared to the artificial neural network (ANN) and the adaptive neuro-fuzzy inference system (ANFIS). The findings showed the superiority of the NN-ARX over the ANN and the ANFIS. For the NN-ARX model, the statistical indicators of the root mean square error (RMSE) and the mean absolute error (MAE) were 0.53 and 0.36 for the PET, 1.28 and 0.71 for the PMV, 2.59 and 1.99 for the SET, 0.29 and 0.08 for the TSV and finally 0.19 and 0.04 for the T mrt.

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Spatial throughput characterization in cognitive radio networks with threshold-based opportunistic spectrum access

Spatial throughput characterization in cognitive radio netwo...

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作者： Song, Xiaoshi Yin, Changchuan Liu, Danpu Zhang, Rui Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications Beijing100876 China Department of Electrical and Computer Engineering National University of Singapore Singapore117576 Singapore

This paper studies the opportunistic spectrum access (OSA) of the secondary users in a large-scale overlay cognitive radio (CR) network. Two threshold-based OSA schemes, namely the primary receiver assisted (PRA) protocol and the primary transmitter assisted (PTA) protocol, are investigated. Under the PRA/PTA protocols, a secondary transmitter (ST) is allowed to access the spectrum only when the maximum signal power of the received beacons/pilots sent from the active primary receivers/transmitters (PRs/PTs) is lower than a certain threshold. To measure the resulting transmission opportunity for the secondary users by the proposed OSA protocols, the concept of spatial opportunity, which is defined as the probability that an arbitrary location in the primary network is detected as a spatial spectrum hole, is introduced and then evaluated by applying tools from stochastic geometry. Based on spatial opportunity, the coverage (non-outage transmission) performance in the overlay CR network is analyzed. With the obtained results of spatial opportunity and coverage probability, we finally characterize the spatial throughput, which is defined as the average spatial density of successful transmissions in the primary/secondary network, under the PRA and PTA protocols, respectively. © 1983-2012 IEEE.

关键词： Cognitive radio

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Wireless communication modeling for safety related systems

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International Journal of Circuits, systems and Signal Processing 2014年 8卷 330-336页

作者： Pendli, P.K. Schwarz, M. Wacker, H.D. Boercsoek, J. Department of Computer Architecture and System Programming University of Kassel Wilhelmshoeher Allee 71 Kassel34121 Germany

This paper deals with the modeling of wireless communication for safety related systems. To achieve safe wireless communication for safety related systems, the wireless channel is modeled by taking into account both bit errors and erasures (loss of information) that occur during wireless transmission of the information. To reduce the bit errors and to detect the erasures, a coding method for transmitting the code word is suggested in this paper. With this coding method, parameters such as bit error, probability of undetected error are reduced and the bit erasures that occur due to fast fading and channel losses are detected confidently. The safety methods as defined according to the European standard EN 50159-2 are taken into consideration and their implementation to achieve safe wireless communication for safety related systems is explained in this paper. The mathematical derivations to calculate the probability of failures per hour (PFH) values for wireless communication with the suggested coding method are derived. With the derived PFH equation, safety integrity level (SIL) achieved for a particular wireless technology can be determined. Finally, the SIL levels achieved for Bluetooth technology are shown. © 2014 North Atlantic University Union. All rights reserved.

关键词： Bit error rate

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POSTER: “Analysis of scalability: A parallel application model approach”

POSTER: “Analysis of scalability: A parallel application mo...

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IEEE International Conference on Cluster Computing

作者： Javier Panadero Alvaro Wong Dolores Rexachs Emilio Luque Department of Computer Architecture and Operating System (CAOS) Universitat Autonoma de Barcelona Barcelona Spain

In this paper we propose a methodology that allows us to predict the application scalability behavior in a specific system, providing information to select the most appropriate resources to run the application. We explain the general methodology, focusing on the presentation of a novel method to model the logical application trace for a large number of processes. This method is based on the projection of a set of executions of the application signature for a small number of processes. The generated traces are validated by comparing them with the real traces obtained with PAS2P tool. We present the experimental validation for the BT Nas Parallel Benchmark. The signatures for 16, 36, 64, 81 and 100 processes were executed and used to model and project the logical trace for 1024 processes. The results obtained show the accuracy of the method. The communication pattern was predicted without error, while the predicted error is less than 10% for the communication volume and less than 5% for the number of instructions.

关键词： Scalability Computational modeling Benchmark testing Predictive models Analytical models Focusing Multicore processing

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Enhancing the field of view limitation of Visible Light Communication-based platoon

Enhancing the field of view limitation of Visible Light Comm...

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IEEE International Symposium on Wireless Vehicular Communications (WiVeC)

作者： Mohammad Y. Abualhoul Mohamed Marouf Oyunchimeg Shag Fawzi Nashashibi Department of EEE BIT Mesra Jharkhand India Leibniz Universität Hannover System and Computer Architecture Germany

Visible Light Communication (VLC) technology have recently been suggested as efficient supportive technology for platooning applications over short inter-vehicle distances. Though, ensuring the continuity of Line-of-Sight (LOS) of any optical-based applications is one of the most complex scenarios for an autonomous vehicle control, and still remains as an open challenge for Intelligent Transformation systems (ITS). Exchanging information about the relative directional position of each member of the platoon, together with front and rear facing directions of each vehicle, can be very useful data for building a smooth geometrical-based compensation method, which results in ensuring that any increase in both incidence and irradiance optical angles will never exceed the Field of View (FOV) limitations and regardless of the trajectory shape. This paper propose a tracking alike compensation method of four vehicles equipped with positioning and VLC systems. We have simulated different scenarios related to different trajectories and compensation angles limits. The simulation results show that trajectories influence on the optical incidence and irradiance angles can be compensated efficiently and without deploying any tracking method.

关键词： Vehicles Trajectory Optical receivers Optical transmitters Simulation Light emitting diodes Optical fiber communication

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7th Drug hypersensitivity meeting: part two Malaga, Spain. 21-23 April 2016 abstracts

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CLINICAL AND TRANSLATIONAL ALLERGY 2016年第SUPPL 3期6卷 30-30页

作者： [Anonymous] Hospital de la Cruz Roja Madrid Spain Allergy Unit Hospital Central Cruz Roja Madrid Spain Allergy Unit Hospital Central de la Cruz Roja Madrid Spain IIS La Fe Valencia Spain Department of Internal Medicine Faculty of Medicine Celal Bayar University Manisa Turkey Department of Allergy and Immunology Faculty of Medicine Celal Bayar University Manisa Turkey Department of Dermatology Faculty of Medicine Celal Bayar University Manisa Turkey Department of Pathology Faculty of Medicine Celal Bayar University Manisa Turkey Department of Dermatology Chang Gung Memorial Hospital Linkou Taiwan Department of Dermatology Drug Hypersensitivity Clinical and Research Center Chang Gung Memorial Hospital Linkou Taiwan Serviço de Imunoalergologia Centro Hospitalar de São João E.P.E. Porto Portugal Laboratório de Imunologia Faculdade de Medicina Universidade do Porto Porto Portugal Centro Hospitalar de São João Porto Portugal Federal University of São Paulo São Paulo Brazil Federal University of Rio de Janeiro Rio De Janeiro Brazil Pontificia Universidade Católica de Campinas Campinas Brazil Private Practice Goiania Brazil Department of Allergy and Clinical Immunology Ege University Medical Faculty Izmir Turkey Ege University Medical Faculty Izmir Turkey Hospital Central de la Defensa IMIDEF Madrid Spain Centro Hospitalar de Lisboa Central Hospital de Dona Estefânia Lisbon Portugal Faculty of Medicine University hospital University of Monastir Monastir Tunisia Faculty of Medicine and Health Sciences Department of Immunology Allergology Rheumatology and Antwerp University Hospital Immunology Allergology Rheumatology University of Antwerp Antwerp Belgium Allergy Unit Complesso Integrato Columbus Rome Italy IRCCS Oasi Maria S.S. Troina Italy Immunoallergy Department - Hospital de Santa Maria Centro Hospitalar Lisboa Norte Lisbon Portugal Faculdade de Medicina de Lisboa Lisbon Portugal Serviço de Imunoalergologia Hospital de São Bernardo Setúbal Port

Poster walk 11: miscellaneous drug hypersensitivity 2 (P92–P94, P96–P101) P92 16 years of experience with proton pump inhibitors (PPIs) Javier Dionicio Elera, Cosmin Boteanu, Maria Aranzazu Jimenez Blanco, Rosario Gonzalez-Mendiola, Irene Carrasco García, Antonio Alvarez, Jose Julio Laguna Martinez P93 Allergy evaluation of quinolone induced adverse reactions Jaume Martí Garrido, Carla Torán Barona, Carolina Perales Chorda, Ramón López Salgueiro, Miguel Díaz Palacios, Dolores Hernández Fernández De Rojas P94 Bupropion-induced acute urticaria and angioedema, a case report Emre Ali Acar, Ayse Aktas, Aylin Türel Ermertcan, Peyker Temiz P96 Delayed type hypersensitivity and study of cross-reactivity between proton-pump inhibitors Chien-Yio Lin, Chung-Yee Rosaline Hui, Ya-Ching Chang, Chih-Hsun Yang, Wen-Hung Chung P97 Diagnostic work-up in suspected hypersensitivity to proton-pump inhibitors: looking at cross-reactivity Fabrícia Carolino, Diana Silva, Eunice Dias De Castro, Josefina R. Cernadas P98 Management of infusion-related hypersensitivity reactions to enzyme replacement therapy for lysosomal diseases Luis Felipe Ensina, Carolina Aranda, Ines Camelo Nunes, Alex Lacerda, Ana Maria Martins, Ekaterini Goudouris, Marcia Ribeiro, José Francisco Da Silva Franco, Leandra Queiroz, Dirceu Solé P99 Management of insulin allergy with continuous subcutaneous insulin infusion Ceyda Tunakan Dalgiç, Aytül Zerrin Sin, Fatma Düsünür Günsen, Gökten Bulut, Fatma Ömür Ardeniz, Okan Gülbahar, Emine Nihal Mete Gökmen, Ali Kokuludag P100 Off-label use of icatibant for management of serious angioedema associated with angiotensin inhibitors Ana M. Montoro De Francisco, Talía Mª De Vicente Jiménez, Adriana M. Mendoza Parra, Angella M. Burgos Pimentel, Amelia García Luque P101 Thiocolchicoside anaphylaxis: an unusual suspect? Luis Amaral, Fabricia Carolino, Leonor Carneiro Leão, Eunice Castro, Josefina Cernadas Poster walk 12: betalactam hypersensitivity (P102–P111) P102 A curious dela

关键词： Quinolone Allergy

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On-Chip Generating FPGA Configuration Bitstreams to Reduce Applycation-Independent Test Time

On-Chip Generating FPGA Configuration Bitstreams to Reduce A...

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The 4th International Workshop on Advanced Technologies in Programmable system on Chip(第四届片上可编程系统前沿技术研讨会)

作者： Da Wang Fei Wang Paolo Ienne Yu Hu Dongrui Fan Haigang Yang Key Laboratory of Computer System and Architecture Institute of Computing TechnologyCASBeijing100190China System on Programmable Chip Research DepartmentInstitute of ElectronicsCASBeijing100190China Processor Architecture LaboratoryEPFLLausanneSwitzerland

FPGA application independent test is very time-consuming due to repetitively loading of test configuration bitstreams into the FPGA and applying test *** shows that over 95%of FPGA application independent test time is spent on loading the test configuration ***,reducing the number of loading times could significantly reduce the FPGA test *** this paper,a new approach which can significantly reduce the FPGA test time will be *** this new approach,a configuration SRAM routing strategy is used first to enhance the correlation of the test bitstream configurations,then,on-chip test configuration generation structures are designed to transform a test bitstream configuration into other ones within limited *** results show that the proposed technique can at least reduce the configuration loading time by 81%,while getting 100%test *** hardware overhead is less than 1.2%upon the whole chip without any performance penalty.

关键词： FPGA test test configuration generation design-for-testability

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