Pub Date : 2007-12-04DOI: 10.1109/SENSORCOMM.2007.4394891
B. Kapilevich, B. Litvak, M. Einat, O. Shotman
Design and testing of the passive mm-wave sensor operating in 88-100 GHz range is reported. The scanning part of this sensor is based on a heterodyne configuration with a bandwidth up to 12 GHz and NF = 9-10 dB. It can receive like noise signals that are typical for passive mm-wave imaging. Depending on the antenna system the sensor can be configured for both in-door and out-door imaging conditions. Lab View interface matched with MatLab 7 data acquisition system has been designed and tested. Examples of in-door and out-door images reconstructed with this sensor are presented proving its applicability for homeland security needs.
{"title":"Passive mm-wave Sensor for In-Door and Out-Door Homeland Security Applications","authors":"B. Kapilevich, B. Litvak, M. Einat, O. Shotman","doi":"10.1109/SENSORCOMM.2007.4394891","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.4394891","url":null,"abstract":"Design and testing of the passive mm-wave sensor operating in 88-100 GHz range is reported. The scanning part of this sensor is based on a heterodyne configuration with a bandwidth up to 12 GHz and NF = 9-10 dB. It can receive like noise signals that are typical for passive mm-wave imaging. Depending on the antenna system the sensor can be configured for both in-door and out-door imaging conditions. Lab View interface matched with MatLab 7 data acquisition system has been designed and tested. Examples of in-door and out-door images reconstructed with this sensor are presented proving its applicability for homeland security needs.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"228 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116045516","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}
Pub Date : 2007-10-14DOI: 10.1109/SENSORCOMM.2007.21
A. Barnawi, R. Hafez
This paper proposes ISS-Mac, an efficient MAC protocol for infrastructure-supported low-power wireless sensor networks. A central base station (sink node) is responsible for wide-network synchronization and multi-hop TDMA slots allocation. Providing an accurate topology information to the base station requires a lot of signaling overhead which affects energy efficiency of the protocol. We propose a progressive topology construction scheme to minimize this overhead and enhance scalability. In addition, the protocol facilitates integration of new nodes into the network while operation. Performance evaluation of the protocol shows that it achieves high energy savings compared to the popular S-MAC and the Full Active CSMA protocols.
本文提出了一种基于基础设施支持的低功耗无线传感器网络的高效MAC协议ISS-Mac。中心基站(汇聚节点)负责广网同步和多跳TDMA时隙分配。向基站提供准确的拓扑信息需要大量的信令开销，这影响了协议的能效。我们提出了一种渐进的拓扑结构方案，以减少这种开销并增强可扩展性。此外，该协议便于在运行时将新节点集成到网络中。对该协议的性能评估表明，与流行的S-MAC和Full Active CSMA协议相比，该协议实现了更高的节能。
{"title":"An Adaptive MAC Protocol for Infrastructure Wireless Sensor Networks","authors":"A. Barnawi, R. Hafez","doi":"10.1109/SENSORCOMM.2007.21","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.21","url":null,"abstract":"This paper proposes ISS-Mac, an efficient MAC protocol for infrastructure-supported low-power wireless sensor networks. A central base station (sink node) is responsible for wide-network synchronization and multi-hop TDMA slots allocation. Providing an accurate topology information to the base station requires a lot of signaling overhead which affects energy efficiency of the protocol. We propose a progressive topology construction scheme to minimize this overhead and enhance scalability. In addition, the protocol facilitates integration of new nodes into the network while operation. Performance evaluation of the protocol shows that it achieves high energy savings compared to the popular S-MAC and the Full Active CSMA protocols.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124522069","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}
Pub Date : 2007-10-14DOI: 10.1109/SENSORCOMM.2007.12
L. Lopes, F. Martins, Miguel S. Silva, Joao Barros
We present a process calculus that models the communication and computational aspects of sensor network applications. The calculus focuses on a basic set of primitives for programming sensor networks that support code deployment, communication and local processing, and provides a very expressive core-language. The calculus and its associated theory provide the tools to verify the robustness of sensor network applications and protocols.
{"title":"A Process Calculus Approach to Sensor Network Programming","authors":"L. Lopes, F. Martins, Miguel S. Silva, Joao Barros","doi":"10.1109/SENSORCOMM.2007.12","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.12","url":null,"abstract":"We present a process calculus that models the communication and computational aspects of sensor network applications. The calculus focuses on a basic set of primitives for programming sensor networks that support code deployment, communication and local processing, and provides a very expressive core-language. The calculus and its associated theory provide the tools to verify the robustness of sensor network applications and protocols.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124880793","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}
Pub Date : 2007-10-14DOI: 10.1109/SENSORCOMM.2007.74
P. Louro, M. Vieira, A. Garção, Y. Vygranenko, M. Fernandes
Optimized a-SiC:H multilayer devices based on two different tandem configurations (TCO/pinpi'n/TCO and TCO/pini'p/TCO) are compared and tested for proper image recognition and color separation process using an optical readout technique. In both configurations the doped layers are based on a-SiC:H to increase image resolution and to prevent image blurring. To profit from the light filtering properties of the active absorbers, the intrinsic layer of the front diode (i layer) is based on a-SiC:H and the back one (i' layer) on a-Si:H. The effect of the applied voltage on the color selectivity is discussed. Results show that the relative spectral response curves demonstrate rather good separation between the red, green and blue basic colors. Combining the information obtained under positive and negative applied bias a colour image is acquired, using the same optical technique either in pinpi'n or in the pini'p configuration, without colour filters or pixel architecture.
{"title":"Optical Image and Color Recognition Using Monolithic Tandem Pinip and Pinpin Heterojunctions: A Comparison","authors":"P. Louro, M. Vieira, A. Garção, Y. Vygranenko, M. Fernandes","doi":"10.1109/SENSORCOMM.2007.74","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.74","url":null,"abstract":"Optimized a-SiC:H multilayer devices based on two different tandem configurations (TCO/pinpi'n/TCO and TCO/pini'p/TCO) are compared and tested for proper image recognition and color separation process using an optical readout technique. In both configurations the doped layers are based on a-SiC:H to increase image resolution and to prevent image blurring. To profit from the light filtering properties of the active absorbers, the intrinsic layer of the front diode (i layer) is based on a-SiC:H and the back one (i' layer) on a-Si:H. The effect of the applied voltage on the color selectivity is discussed. Results show that the relative spectral response curves demonstrate rather good separation between the red, green and blue basic colors. Combining the information obtained under positive and negative applied bias a colour image is acquired, using the same optical technique either in pinpi'n or in the pini'p configuration, without colour filters or pixel architecture.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115587122","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}
Pub Date : 2007-10-14DOI: 10.1109/SENSORCOMM.2007.85
M. Healy, T. Newe, E. Lewis
Due to the sensitive nature of the data gathered by many wireless sensor networks it is becoming critical that this data be protected. The obvious way to secure this data is to encrypt it using a secure encryption algorithm before it is transmitted over the (open) air ways. However due to the constrained nature of the resources available on sensor nodes the cost, in terms of power consumption, speed and communications overhead, of any software based encryption procedure can often out weigh the risks of the transmission being intercepted. In this paper we present a solution to reduce this cost of employing encryption by taking advantage of a resource already available on many sensor nodes; this resource being the AES hardware encryption module available on the Chipcon CC2420 transceiver chip.
{"title":"Resources Implications for Data Security in Wireless Sensor Network Nodes","authors":"M. Healy, T. Newe, E. Lewis","doi":"10.1109/SENSORCOMM.2007.85","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.85","url":null,"abstract":"Due to the sensitive nature of the data gathered by many wireless sensor networks it is becoming critical that this data be protected. The obvious way to secure this data is to encrypt it using a secure encryption algorithm before it is transmitted over the (open) air ways. However due to the constrained nature of the resources available on sensor nodes the cost, in terms of power consumption, speed and communications overhead, of any software based encryption procedure can often out weigh the risks of the transmission being intercepted. In this paper we present a solution to reduce this cost of employing encryption by taking advantage of a resource already available on many sensor nodes; this resource being the AES hardware encryption module available on the Chipcon CC2420 transceiver chip.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"433 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116007743","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}
Pub Date : 2007-10-14DOI: 10.1109/SENSORCOMM.2007.50
Juan-Carlos Cano, J. Cano, C. Calafate, Eva González, P. Manzoni
To further increase the applicability of Bluetooth in real applications, reducing the energy consumption and hardware cost are important research topics. In this paper we examine the trade-off between power consumption and performance for our experimental prototype, which has been implemented based on commercial Bluetooth off-the-shelf components. Performance analysis shows that the use of the sniff mode is compatible with the use of multi- slot data packets. However, when the channel conditions require selecting single slot data packets, the sniff mode could have a negative impact on performance, and so the power/delay trade-off must be taken into consideration. Our prototype has been used in a museum application to support ubiquitous computing between devices without requiring a priori knowledge of each other.
{"title":"Evaluation of the Trade-Off between Power Consumption and Performance in Bluetooth Based Systems","authors":"Juan-Carlos Cano, J. Cano, C. Calafate, Eva González, P. Manzoni","doi":"10.1109/SENSORCOMM.2007.50","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.50","url":null,"abstract":"To further increase the applicability of Bluetooth in real applications, reducing the energy consumption and hardware cost are important research topics. In this paper we examine the trade-off between power consumption and performance for our experimental prototype, which has been implemented based on commercial Bluetooth off-the-shelf components. Performance analysis shows that the use of the sniff mode is compatible with the use of multi- slot data packets. However, when the channel conditions require selecting single slot data packets, the sniff mode could have a negative impact on performance, and so the power/delay trade-off must be taken into consideration. Our prototype has been used in a museum application to support ubiquitous computing between devices without requiring a priori knowledge of each other.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122307717","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}
Pub Date : 2007-10-14DOI: 10.1109/SENSORCOMM.2007.23
Wen-Hwa Liao, Yucheng Kao, Chien-Ming Fan
This paper considers the problem of constructing data aggregation tree in a wireless sensor network for a group of source nodes to send sensory data to a single sink node. Our goal is to minimize the number of non-source nodes in the tree to save energies. In this paper, we propose an ant colony algorithm for data aggregation in wireless sensor networks. Every ant will explore some paths from source node to sink node. The data aggregation tree will be constructed by the accumulated pheromone. The simulations have shown that our algorithm can deduce significant energy cost.
{"title":"An Ant Colony Algorithm for Data Aggregation in Wireless Sensor Networks","authors":"Wen-Hwa Liao, Yucheng Kao, Chien-Ming Fan","doi":"10.1109/SENSORCOMM.2007.23","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.23","url":null,"abstract":"This paper considers the problem of constructing data aggregation tree in a wireless sensor network for a group of source nodes to send sensory data to a single sink node. Our goal is to minimize the number of non-source nodes in the tree to save energies. In this paper, we propose an ant colony algorithm for data aggregation in wireless sensor networks. Every ant will explore some paths from source node to sink node. The data aggregation tree will be constructed by the accumulated pheromone. The simulations have shown that our algorithm can deduce significant energy cost.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122050853","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}
Pub Date : 2007-10-14DOI: 10.1109/SENSORCOMM.2007.104
Y. J. Al-raisi, D. Parish
Although wireless sensor networks help in the close monitoring and control of real world applications, they suffer from many problems that degrade their functionality and may cause their monitoring operations to fail. This is due to the deviation of the network from its normal operation as a result of sensor device problems, battery issues, and the harsh environment in which they work. The goal of this paper is to propose a new distributed performance algorithm that ensures the detection of such deviations and reduces their impact on network functionality. The results of experiments showed that the proposed algorithm achieved a high level of detection reliability and is resilient to high packet loss.
{"title":"Wireless Sensor Network Performance Monitoring","authors":"Y. J. Al-raisi, D. Parish","doi":"10.1109/SENSORCOMM.2007.104","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.104","url":null,"abstract":"Although wireless sensor networks help in the close monitoring and control of real world applications, they suffer from many problems that degrade their functionality and may cause their monitoring operations to fail. This is due to the deviation of the network from its normal operation as a result of sensor device problems, battery issues, and the harsh environment in which they work. The goal of this paper is to propose a new distributed performance algorithm that ensures the detection of such deviations and reduces their impact on network functionality. The results of experiments showed that the proposed algorithm achieved a high level of detection reliability and is resilient to high packet loss.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116726871","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}
Pub Date : 2007-10-14DOI: 10.1109/SENSORCOMM.2007.43
R. Jurdak, A. Ruzzelli, G. O’hare
The reliance of underwater network deployments on specialized hardware for acoustic communication and modulation has impeded wide scale deployments of underwater sensor networks. This paper examines a system that integrates software modems with generic speakers and microphones that are built-in to sensor modules for establishing underwater acoustic links. Building on our recent field experiment in a river, canal, pond, and swimming pool, this paper outlines the technical and logistical challenges for deploying software-driven underwater sensor network. The software modem design choices include methods for signal modulation at the sender, and symbol synchronization, signal filtering, and signal demodulation at the receiver. Higher layer communication protocol issues are also discussed, with a focus on cross-layer optimization. Practical solutions to logistical deployment challenges, such as waterproofing and casing, calibration, and fouling are proposed. The design guidelines in this paper lay the groundwork for further development of software-driven of underwater sensor networks.
{"title":"Design Considerations for Deploying Underwater Sensor Networks","authors":"R. Jurdak, A. Ruzzelli, G. O’hare","doi":"10.1109/SENSORCOMM.2007.43","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.43","url":null,"abstract":"The reliance of underwater network deployments on specialized hardware for acoustic communication and modulation has impeded wide scale deployments of underwater sensor networks. This paper examines a system that integrates software modems with generic speakers and microphones that are built-in to sensor modules for establishing underwater acoustic links. Building on our recent field experiment in a river, canal, pond, and swimming pool, this paper outlines the technical and logistical challenges for deploying software-driven underwater sensor network. The software modem design choices include methods for signal modulation at the sender, and symbol synchronization, signal filtering, and signal demodulation at the receiver. Higher layer communication protocol issues are also discussed, with a focus on cross-layer optimization. Practical solutions to logistical deployment challenges, such as waterproofing and casing, calibration, and fouling are proposed. The design guidelines in this paper lay the groundwork for further development of software-driven of underwater sensor networks.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128319212","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}
Pub Date : 2007-10-14DOI: 10.1109/SENSORCOMM.2007.79
P. Almorox-Gonzalez, José-Tomás González-Partida, M. Burgos-García, C. de la Morena-Alvarez-Palencia, Lara Arche-Andradas, B. Dorta-Naranjo
This paper presents a portable radar sensor developed in the Universidad Politecnica de Madrid. The system transmits a Linear Frequency Modulated Continuous Wave (LFM-CW) with two-antenna configuration for transmission and reception. The radar transmits at millimeter-wave band with a maximum bandwidth of 2 GHz and a transmitted power of 1 W. The system is modular, compact and lightweight. The sensor allows range intervals tuning and sampling the received signals with a constant rate. By this, it is particularly attractive for portable applications. Finally, the system performance has been tested in a traffic surveillance experiment.
{"title":"Portable High Resolution LFM-CW Radar Sensor in Millimeter-Wave Band","authors":"P. Almorox-Gonzalez, José-Tomás González-Partida, M. Burgos-García, C. de la Morena-Alvarez-Palencia, Lara Arche-Andradas, B. Dorta-Naranjo","doi":"10.1109/SENSORCOMM.2007.79","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2007.79","url":null,"abstract":"This paper presents a portable radar sensor developed in the Universidad Politecnica de Madrid. The system transmits a Linear Frequency Modulated Continuous Wave (LFM-CW) with two-antenna configuration for transmission and reception. The radar transmits at millimeter-wave band with a maximum bandwidth of 2 GHz and a transmitted power of 1 W. The system is modular, compact and lightweight. The sensor allows range intervals tuning and sampling the received signals with a constant rate. By this, it is particularly attractive for portable applications. Finally, the system performance has been tested in a traffic surveillance experiment.","PeriodicalId":161788,"journal":{"name":"2007 International Conference on Sensor Technologies and Applications (SENSORCOMM 2007)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128617151","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}
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