International journal of sensor networks and data communications最新文献_第10页

Delivery Delay Analysis of Selective Repeat ARQ in Underwater Acoustic Communications 水声通信中选择性重复ARQ传输时延分析

International journal of sensor networks and data communications Pub Date : 2015-01-01 DOI: 10.4172/2090-4886.1000134

Mingsheng Gao, Jian Li, Wei Li, N. Xu

{"title":"Delivery Delay Analysis of Selective Repeat ARQ in Underwater Acoustic Communications","authors":"Mingsheng Gao, Jian Li, Wei Li, N. Xu","doi":"10.4172/2090-4886.1000134","DOIUrl":"https://doi.org/10.4172/2090-4886.1000134","url":null,"abstract":"Despite being the most efficient automatic repeat request (ARQ) protocol, the selective-repeat ARQ (SR-ARQ) is previously thought to be infeasible in underwater acoustic communications owing to the half-duplex property of typical underwater acoustic modems. However, with the help of the juggling-like stop-and-wait (JSW) transmission scheme, it has now become feasible. In this paper, we evaluate the delivery delay (consisting of transmission and resequencing delays) of the SR-ARQ operating over the JSW scheme under the static assumption that the relative radial velocity between the transmitter and the receiver is zero, aiming to provide system designers with a valuable reference for delay evaluation under more general scenarios. We model the underwater acoustic channel as a two-state Discrete Time Markov Channel, and derive the closed-form expression for the delivery delay under heavy traffic situation. Unlike most analytical approaches for the delay analysis of SR-ARQ in terrestrial communications whose computational complexities grow exponentially with round-trip delay, our proposed analytical approach is immune to the round-trip delay. This also makes our approach suitable for terrestrial communications. To highlight the accuracy of our approach, we also provide comparisons between analytical and simulation results.","PeriodicalId":91517,"journal":{"name":"International journal of sensor networks and data communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2090-4886.1000134","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70964934","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

Conceptual Optimal Design of Environmentally Friendly Airliners: AReview of Available Methodologies and their Integration into a ConsistentFramework for Everyday Use 环境友好型客机的概念优化设计:现有方法综述及其融入日常使用的一致框架

International journal of sensor networks and data communications Pub Date : 2015-01-01 DOI: 10.4172/2090-4886.1000126

Paulo Eduardo C. S. Magalhaes, Bento S. Mattos

{"title":"Conceptual Optimal Design of Environmentally Friendly Airliners: AReview of Available Methodologies and their Integration into a ConsistentFramework for Everyday Use","authors":"Paulo Eduardo C. S. Magalhaes, Bento S. Mattos","doi":"10.4172/2090-4886.1000126","DOIUrl":"https://doi.org/10.4172/2090-4886.1000126","url":null,"abstract":"Airplane design involves complex system integration and must comply with a set of requirements, which are set up by certification authorities, customers, manufacturing, and that coming from market studies. From the traditional perspective of an airline, an interesting airplane is one that is capable of generating the highest revenue with minimum cost-a maximum profit airplane. In later years, however, the airline industry is swiftly broadening its consideration of what constitutes a nice-to-buy airplane. Not only economics but also environmental considerations are taking part in fleet-planning considerations-a trend spurred by environmental-aware passengers. In a move to comply with this trend, airplane conceptual design has incorporated methodologies for preliminary assessment of airplane noise and emissions. As more approaches become available to address these issues, the choice between the most suitable methodologies becomes tougher. The present work analyzes some methodologies in order to select a subset of them. The objective is the evaluation of such methodologies and their integration into a framework to airliner conceptual design. In order to test the design methodologies and the optimization techniques, the authors selected two test airplane categories: first, a long range, transcontinental jet; and a mid-size regional jet. Design tasks based on optimization with noise footprint, direct operational cost, and emission profile or a combination of them as objectives are presented and analyzed.","PeriodicalId":91517,"journal":{"name":"International journal of sensor networks and data communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70964522","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 Novel Application of Sensor Networks in Biomedical Engineering 传感器网络在生物医学工程中的新应用

International journal of sensor networks and data communications Pub Date : 2015-01-01 DOI: 10.4172/2090-4886.1000118

Sabzpoushan Sh, A. Maleki, F. Miri

引用次数: 2

Terahertz Sensor for Noncontact and Non-destructive Inspection of Automotive Paints 用于汽车涂料非接触无损检测的太赫兹传感器

International journal of sensor networks and data communications Pub Date : 2014-11-27 DOI: 10.4172/2090-4886.1000E103

Yaochun Shen

引用次数: 1

Dynamic Cluster Based Intrusion Detection Architecture to Detect RoutingProtocol Attacks in MANET 基于动态集群的城域网路由协议攻击检测体系结构研究

International journal of sensor networks and data communications Pub Date : 2014-09-01 DOI: 10.4172/2090-4886.1000116

Sarika Patil, Deepali R. Borade

{"title":"Dynamic Cluster Based Intrusion Detection Architecture to Detect RoutingProtocol Attacks in MANET","authors":"Sarika Patil, Deepali R. Borade","doi":"10.4172/2090-4886.1000116","DOIUrl":"https://doi.org/10.4172/2090-4886.1000116","url":null,"abstract":"Mobile Ad-Hoc Networks (MANETs) consist of a collection of wireless mobile nodes which dynamically exchange data among themselves without the reliance on a fixed base station. MANET is more vulnerable to different types of attacks and security threats because of its characteristics of mobility and dynamic nature. Intrusion means any set of action that attempts to compromise the integrity, confidentiality, availability of resources. We are implementing EAACK secure acknowledge based IDS to remove the drawbacks of Watchdog. By using the schemes of EAACK we propose a cooperative, dynamic hierarchical intrusion detection architecture that addresses these challenges while finding specific and conventional attacks in MANET. The structural design is organized as a dynamic hierarchy in which data is acquired at the leaves and is incrementally aggregated, reduced, and analyzed as it flows upward toward the root. To maintain communications effectiveness, the hierarchy is automatically reconfigured as desired using clustering techniques in which cluster heads are selected based on topology and other criteria. The usefulness of the architecture is demonstrated via black hole attack scenarios in which attack is detected and removed. Reactive routing protocol is used as it provide better efficiency and hence to reduce the network overhead.","PeriodicalId":91517,"journal":{"name":"International journal of sensor networks and data communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70963825","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

Pedestrian Indoor Navigation System Using Inertial Measurement Unit 基于惯性测量单元的行人室内导航系统

International journal of sensor networks and data communications Pub Date : 2014-06-02 DOI: 10.4172/2090-4886.1000115

M. B. Dehkordi, A. Frisoli, E. Sotgiu, C. Loconsole

{"title":"Pedestrian Indoor Navigation System Using Inertial Measurement Unit","authors":"M. B. Dehkordi, A. Frisoli, E. Sotgiu, C. Loconsole","doi":"10.4172/2090-4886.1000115","DOIUrl":"https://doi.org/10.4172/2090-4886.1000115","url":null,"abstract":"This paper presents a method for an indoor pedestrian localization, based on the data that solely are measured by a foot-mounted Inertial Measurement Unit (IMU). To locate the user accurately, a comprehensive Extended Kalman Filter (EKF) with five states is developed. Five different error reduction methods are employed to estimate the errors of all five states. These error reduction methods feed EKF independently, at stance phases or different time intervals of swing phases. The navigation system is developed using the accelerometer and gyroscope measurements and without magnetometer, thus it is insensitive to the presence of metal and magnetic fields, and it is able to estimate the user’s tracked trajectory with the same accuracy in both indoor and outdoor environments. The system does not rely on the measurement from external infrastructure (e.g., RFID). To evaluate the accuracy of the system, several experimental tests are carried out over the known trajectories. Results demonstrate that the error of the estimated tracked trajectory is less than 1% of the total traveled distance.","PeriodicalId":91517,"journal":{"name":"International journal of sensor networks and data communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2090-4886.1000115","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70963708","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: 11

L-Sensors in Aerospace l -传感器在航空航天中的应用

International journal of sensor networks and data communications Pub Date : 2014-03-25 DOI: 10.4172/2090-4886.1000E101

S. Sabzpoushan, Sabzpoushan Sa

引用次数: 0

Array Signal Processing in Wireless Sensor Networks 无线传感器网络中的阵列信号处理

International journal of sensor networks and data communications Pub Date : 2014-03-05 DOI: 10.4172/2090-4886.1000E102

Minghui Li

引用次数: 0

Collaborative Signal and Information Processing for Target Detection with Heterogeneous Sensor Networks 基于异构传感器网络的目标检测协同信号与信息处理

International journal of sensor networks and data communications Pub Date : 2013-11-25 DOI: 10.4172/2090-4886.1000112

Minghui Li, Yilong Lu, Bo He

引用次数: 3

Biosensors-and-lsensors Biosensors-and-lsensors

International journal of sensor networks and data communications Pub Date : 2013-10-25 DOI: 10.4172/2090-4886.1000109

Sabzpoushan Sh

引用次数: 0