发布求助
文献互助 智能选刊 最新文献

ISRN Sensor Networks最新文献

筛选
英文 中文
Low Power Decoding of LDPC Codes LDPC码的低功耗解码
ISRN Sensor Networks Pub Date : 2013-01-17 DOI: 10.1155/2013/650740
M. Ismail, Imran Ahmed, J. Coon
{"title":"Low Power Decoding of LDPC Codes","authors":"M. Ismail, Imran Ahmed, J. Coon","doi":"10.1155/2013/650740","DOIUrl":"https://doi.org/10.1155/2013/650740","url":null,"abstract":"Wireless sensor networks are used in many diverse application scenarios that \u0000require the network designer to trade off different factors. Two such factors of importance \u0000in many wireless sensor networks are communication reliability and battery \u0000life. This paper describes an efficient, low complexity, high throughput channel \u0000decoder suited to decoding low-density parity-check (LDPC) codes. LDPC \u0000codes have demonstrated excellent error-correcting ability such that a number of \u0000recent wireless standards have opted for their inclusion. Hardware realisation of \u0000practical LDPC decoders is a challenging area especially when power efficient solutions \u0000are needed. Implementation details are given for an LDPC decoding algorithm, \u0000termed adaptive threshold bit flipping (ATBF), designed for low complexity \u0000and low power operation. The ATBF decoder was implemented in 90 nm CMOS at \u00000.9 V using a standard cell design flow and was shown to operate at 250 MHz achieving \u0000a throughput of 252 Gb/s/iteration. The decoder area was 0.72 mm2 with a power \u0000consumption of 33.14 mW and a very small energy/decoded bit figure of 1.3 pJ.","PeriodicalId":314840,"journal":{"name":"ISRN Sensor Networks","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123159747","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
An Underwater Sensor Allocation Scheme for Noncircular Sensing Coverage Regions 一种非圆形传感覆盖区域水下传感器分配方案
ISRN Sensor Networks Pub Date : 2013-01-17 DOI: 10.1155/2013/963029
E. Golen, Carl Lutzer, David Ross, N. Shenoy
{"title":"An Underwater Sensor Allocation Scheme for Noncircular Sensing Coverage Regions","authors":"E. Golen, Carl Lutzer, David Ross, N. Shenoy","doi":"10.1155/2013/963029","DOIUrl":"https://doi.org/10.1155/2013/963029","url":null,"abstract":"Intelligently allocating underwater sensors to a large area of interest whose acoustic characteristics vary throughout is a challenge, especially for an area clearance scenario. In these scenarios, there is no apparent target for an adversary to gravitate towards, such as a ship or a port. Thus, it is difficult to determine how the field designer should allocate sensors so that their deployment locations can be planned efficiently. The previously proposed Game Theory Field Design (GTFD) model can achieve an intelligent sensor allocation, using a game theoretic approach, for sensors with circular coverage regions. In practice, however, the sensing coverage of an underwater sensor will likely be noncircular due to the azimuthally dependent bathymetric phenomena and other underwater irregularities. As a result, an extension of the model is proposed for allocating sensors for the irregularly shaped sensing coverage regions. This work provides two validations of the extended GTFD model. The first is an analytical comparison with sensing coverage regions whose shape is well understood, and the second uses simulation to validate the model for the irregularly shaped regions.","PeriodicalId":314840,"journal":{"name":"ISRN Sensor Networks","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133993815","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
Logical Sensor Network: An Abstraction of Sensor Data Processing over Multidomain Sensor Network 逻辑传感器网络:多域传感器网络中传感器数据处理的抽象
ISRN Sensor Networks Pub Date : 2012-12-31 DOI: 10.5402/2012/234251
N. Namatame, J. Nakazawa, H. Tokuda
{"title":"Logical Sensor Network: An Abstraction of Sensor Data Processing over Multidomain Sensor Network","authors":"N. Namatame, J. Nakazawa, H. Tokuda","doi":"10.5402/2012/234251","DOIUrl":"https://doi.org/10.5402/2012/234251","url":null,"abstract":"This paper focuses on a sensor network virtualization over multidomain sensor network and proposes an abstraction called “logical sensor network (LSN)” for sensor data processing. \u0000In the proposed abstraction, processing is a directed acyclic graph that consists of nodes and streams, which represents a small data processor and communication rules between them, respectively. We have added a notion of a trigger to this graph. A trigger represents a timing of the process execution. We have implemented the middleware named LSN-Middle to run a virtualized sensor network and proved its feasibility.","PeriodicalId":314840,"journal":{"name":"ISRN Sensor Networks","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133870083","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
A Comparative Analysis of Reliable and Congestion-Aware Transport Layer Protocols for Wireless Sensor Networks 无线传感器网络可靠传输层协议与拥塞感知传输层协议的比较分析
ISRN Sensor Networks Pub Date : 2012-12-30 DOI: 10.5402/2012/104057
B. Sharma, T. C. Aseri
{"title":"A Comparative Analysis of Reliable and Congestion-Aware Transport Layer Protocols for Wireless Sensor Networks","authors":"B. Sharma, T. C. Aseri","doi":"10.5402/2012/104057","DOIUrl":"https://doi.org/10.5402/2012/104057","url":null,"abstract":"Design and implementation of wireless sensor Networks have gathered increased attention in recent years due to vast potential of sensor networks consisting of spatially distributed devices (motes) to cooperatively monitor physical or environmental conditions at different locations. Wireless sensor networks are built upon low cost nodes with limited battery (power), CPU clock (processing capacity), and memory modules (storage). Transport layer protocols applied to wireless sensor networks can handle the communications between the sink node and sensor nodes in upstream (sensor-to-sink) or downstream (sink-to-sensor) direction. In this paper, we present a comparative analysis of reliable and congestion aware transport layer protocols for wireless sensor networks and number of open issues that have to be carefully realized to make use of the wireless sensor networks more efficiently and to enhance their performance. We first list the characteristics of transport layer protocols. We then provide a summary of reliable and congestion aware transport layer protocols with their respective pros and cons and comparison of different protocols based on reliability, congestion control, and energy efficiency. Finally, we point out open research issues of transport layer protocols for wireless sensor networks, which need further attention to overcome the earlier mentioned challenges.","PeriodicalId":314840,"journal":{"name":"ISRN Sensor Networks","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121202413","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: 32
Audio Streaming with Silence Detection Using 802.15.4 Radios 使用802.15.4无线电进行静音检测的音频流
ISRN Sensor Networks Pub Date : 2012-12-10 DOI: 10.5402/2012/590651
A. Rohankar, Shantanu Pathak, M. K. Naskar, A. Mukherjee
{"title":"Audio Streaming with Silence Detection Using 802.15.4 Radios","authors":"A. Rohankar, Shantanu Pathak, M. K. Naskar, A. Mukherjee","doi":"10.5402/2012/590651","DOIUrl":"https://doi.org/10.5402/2012/590651","url":null,"abstract":"Short-range radios with low data rate are gaining popularity due to their abundant commercial availability. It is imperative that high-speed multimedia would be an attractive application field with these radios. Audio over 802.15.4 compliant radios is a challenging task to achieve. This paper describes a real-time implementation of audio communication using 802.15.4 radios. Silence detection and soft ADPCM are the main features of our work. Our results show that silence detection improves bandwidth optimization and audio communication performance over low bit-rate radios.","PeriodicalId":314840,"journal":{"name":"ISRN Sensor Networks","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122961125","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 Survey of Image Compression Algorithms for Visual Sensor Networks 面向视觉传感器网络的图像压缩算法综述
ISRN Sensor Networks Pub Date : 2012-11-28 DOI: 10.5402/2012/760320
A. Mammeri, Brahim Hadjou, A. Khoumsi
{"title":"A Survey of Image Compression Algorithms for Visual Sensor Networks","authors":"A. Mammeri, Brahim Hadjou, A. Khoumsi","doi":"10.5402/2012/760320","DOIUrl":"https://doi.org/10.5402/2012/760320","url":null,"abstract":"With the advent of visual sensor networks (VSNs), energy-aware compression algorithms have gained wide attention. That is, new strategies and mechanisms for power-efficient image compression algorithms are developed, since the application of the conventional methods is not always energy beneficial. In this paper, we provide a survey of image compression algorithms for visual sensor networks, ranging from the conventional standards such as JPEG and JPEG2000 to a new compression method, for example, compressive sensing. We provide the advantages and shortcomings of the application of these algorithms in VSN, a literature review of their application in VSN, as well as an open research issue for each compression standard/method. Moreover, factors influencing the design of compression algorithms in the context of VSN are presented. We conclude by some guidelines which concern the design of a compression method for VSN.","PeriodicalId":314840,"journal":{"name":"ISRN Sensor Networks","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115397543","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: 51
Polymer Optical Fiber Intensity-Based Sensor for Liquid-Level Measurements in Volumetric Flasks for Industrial Application 用于工业容积烧瓶液位测量的聚合物光纤强度传感器
ISRN Sensor Networks Pub Date : 2012-10-14 DOI: 10.5402/2012/618136
D. Montero, C. Vázquez
{"title":"Polymer Optical Fiber Intensity-Based Sensor for Liquid-Level Measurements in Volumetric Flasks for Industrial Application","authors":"D. Montero, C. Vázquez","doi":"10.5402/2012/618136","DOIUrl":"https://doi.org/10.5402/2012/618136","url":null,"abstract":"A low-cost intensity-based polymer optical fiber (POF) sensor for liquid detection applied to volumetric flasks is presented. Experimental results demonstrate the viability of the POF-based sensor system in a high-accuracy liquid level measurement scenario. Moreover, a wireless mesh sensor network based on ZigBee specification protocol to address multiplexed POF-based sensor is also developed. Experimental results demonstrate the feasibility to address a high number of optical sensors in an industrial process framework by means of this low-cost wireless solution.","PeriodicalId":314840,"journal":{"name":"ISRN Sensor Networks","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122356004","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
Low-Complexity Localization and Tracking in Hybrid Wireless Sensor Networks 混合无线传感器网络的低复杂度定位与跟踪
ISRN Sensor Networks Pub Date : 2012-08-23 DOI: 10.5402/2012/430169
S. Kianoush, E. Goldoni, A. Savioli, P. Gamba
{"title":"Low-Complexity Localization and Tracking in Hybrid Wireless Sensor Networks","authors":"S. Kianoush, E. Goldoni, A. Savioli, P. Gamba","doi":"10.5402/2012/430169","DOIUrl":"https://doi.org/10.5402/2012/430169","url":null,"abstract":"Localization in Wireless Sensor Networks (WSNs) is an important research topic: readings come from sensors scattered in the environment, and most of applications assume that the exact position of the sensors is known. Due to power restrictions, WSN nodes are not usually equipped with a global positioning system—hence, many techniques have been developed in order to estimate the position of nodes according to some measurements over the radio channel. In this paper, we propose a new technique to track a moving target by combining distance measurements obtained from both narrowband IEEE 802.15.4 and Ultrawideband (UWB) radios, and then exploiting a novel speed-based algorithm for bounding the error. This process is applied to a real dataset collected during a measurement campaign, and its performance is compared against a Kalman filter. Results show that our algorithm is able to track target path with good accuracy and low computational impact.","PeriodicalId":314840,"journal":{"name":"ISRN Sensor Networks","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133337737","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: 6
GeoSense: A Multimode Information and Communication System GeoSense:一个多模式信息与通信系统
ISRN Sensor Networks Pub Date : 2012-05-31 DOI: 10.5402/2012/215103
D. Sudharsan, J. Adinarayana, A. Tripathy, S. Ninomiya, M. Hirafuji, T. Kiura, U. Desai, S. Merchant, D. R. Reddy, G. Sreenivas
{"title":"GeoSense: A Multimode Information and Communication System","authors":"D. Sudharsan, J. Adinarayana, A. Tripathy, S. Ninomiya, M. Hirafuji, T. Kiura, U. Desai, S. Merchant, D. R. Reddy, G. Sreenivas","doi":"10.5402/2012/215103","DOIUrl":"https://doi.org/10.5402/2012/215103","url":null,"abstract":"Recent technological developments allowed to envision the low-power (solar power) and low-cost (open hardware) sensor devices (Agrisens/FieldServer/Flux Tower/FieldTwitter) with multimode (ZigBee/WiFi/3G/WebGIS) information and communication technologies (ICTs), a model in which is christened as GeoSense. Integrating these multimode and multi-level communication systems with distributed ambient sensory network location-based service (LBS) is a challenging task, which could be a potential technology for monitoring various natural phenomena. This integrated model is introduced to provide and assist the rural stakeholders with real-time decision support system (DSS) with dynamic information and modeling services for precision agriculture through GeoSense cloud service. This GeoSense research has been experimented in semiarid tropics in India under Indo-Japan initiative on multi-disciplinary ICT program.","PeriodicalId":314840,"journal":{"name":"ISRN Sensor Networks","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129899795","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: 12
Fault-Tolerant Energy-Efficient Priority-Based Routing Scheme for the Multisink Healthcare Sensor Networks 基于优先级的多sink医疗传感器网络容错节能路由方案
ISRN Sensor Networks Pub Date : 2012-05-09 DOI: 10.5402/2012/196590
A. Saeed, A. Stranieri, Richard Dazeley
{"title":"Fault-Tolerant Energy-Efficient Priority-Based Routing Scheme for the Multisink Healthcare Sensor Networks","authors":"A. Saeed, A. Stranieri, Richard Dazeley","doi":"10.5402/2012/196590","DOIUrl":"https://doi.org/10.5402/2012/196590","url":null,"abstract":"Wireless sensor networks (WSNs) are widely used in battle fields, logistic applications, healthcare, habitat monitoring, environmental monitoring, home security, and variety of other areas. The existing routing algorithms focus on the delivery of data packets to the sink using the shortest path; however, calculating the shortest path is not a cost-effective solution while disseminating datasets of interest to the nearest sink node. The approach presented in this paper extends the existing PBR (priority-based routing) protocol by providing a new fault-tolerant multipath priority-based routing (FT-MPPBR) scheme, which not only balances the energy consumption while selecting multiple paths but also balances the workload of the node closest to the sink. The nodes closer to the sink dissipate more energy and can become the source of a communication bottleneck. Simulation results for the proposed routing scheme are encouraging and clearly show that the FT-MPPBR has outperformed the existing PBR schemes in terms of prolonging the network lifetime and reliability. In healthcare sensor networks, timely dissemination of datasets is critical for the well-being of a patient. This research further extends the PBR architecture for supporting computational intensive analysis by transferring datasets of interest to the sensor grid node for improved communication and better throughput.","PeriodicalId":314840,"journal":{"name":"ISRN Sensor Networks","volume":"abs/1604.06181 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126828896","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信