{"title":"Design and Analysis of a Novel Wireless Passive Microsensor Based on the SAW Theory","authors":"Tianli Li, Liang Zheng, Tie Liu, Hong Hu","doi":"10.1109/SENSORCOMM.2008.44","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2008.44","url":null,"abstract":"A novel wireless passive SAW microsensor is designed, based on the delay line theory and the coupling-of-modes (COM) theory. For this purpose, a P-matrix with new expression is derived utilizing the COM theory. The applicability and accuracy of the new P-matrix model in analyzing the unitary symmetry IDT and the reflector have been validated. The effect of the temperature is included in the pressure feedback signal and a weighted factor is introduced in order to separate the temperature effect from the feedback signal. Therefore, the temperature and pressure can be accurately measured at the same time. In this sensor design, the energy converted from IDT is fully used, and the interference between the signals is minimized. The IDT and its reflectors have been optimally designed to improve the sensitivity of the sensor. This wireless passive sensor is capable of working under various conditions.","PeriodicalId":359452,"journal":{"name":"2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115548631","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}
S. Corroy, J. Beiten, J. Ansari, H. Baldus, P. Mahonen
{"title":"Energy Efficient Selection of Computing Elements in Wireless Sensor Networks","authors":"S. Corroy, J. Beiten, J. Ansari, H. Baldus, P. Mahonen","doi":"10.1109/SENSORCOMM.2008.86","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2008.86","url":null,"abstract":"A wide range of wireless sensor network applications are characterized by local processing of the sensed data and only meager data communication requirements. Indeed, because sensor nodes are battery powered and wireless communication bears a high energy cost, data transmission can be traded for on-the-node computation to extend node and network lifetime. Furthermore, the energy consumption can be reduced significantly by selecting and realizing the application on an appropriate processing element. In this article, we propose a new statistical technique for energy consumption estimation for a specific application on various platforms. We have empirically verified the methodology on various classes of embedded processors commonly used in sensor nodes. The methodology can also be applied to multiprocessor platforms. Our solution is not only capable to achieve high accuracy but also facilitates the application developer to evaluate different platforms without actually implementing the application on each of these platforms. Our experimental evaluation results for various platforms will help to understand the implications of using different processing elements and their effects on the lifetime of the network.","PeriodicalId":359452,"journal":{"name":"2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127750313","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}
{"title":"Opportunistic Protocols in Multi-rate Environments","authors":"A. Zubow, M. Kurth, J. Redlich","doi":"10.1109/SENSORCOMM.2008.24","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2008.24","url":null,"abstract":"In recent years the research of opportunistic protocols for wireless mesh networks gained lots of attention. A great number of protocols like extreme opportunistic routing (ExOR) and multiuser diversity forwarding (MDF) was proposed. Most of the performance evaluations were conducted in a constant bit-rate environment. This paper presents simulation results of the performance of existing opportunistic protocols as well as a new opportunistic protocol called hybrid opportunistic routing (HOR) in a constant- and multi-rate environment. In a constant rate environment with a slow fading channel ExOR outperforms MDF and HOR by around 20%. This is mainly due to its small signaling overhead. ExOR is also the best choice in a fast fading channel. However, here HOR is able to outperform MDF. In a multi-rate environment our proposed ETT-RCA rate control algorithms outperforms the existing adaptive auto rate fallback (AARF) significantly. AARF is only suitable for short, high quality links. The biggest problem with ExOR is that is cannot be used together with ETT-RCA. In a slow fading channel MDF with ETT-RCA is the best choice. It outperforms ExOR with AARF by multiple times (up to 360%). In a fast fading channel HOR with ETT-RCA is the best choice for medium distances (e.g. 80% and 330% higher throughput than MDF with ETT-RCA and ExOR AARF). Only for very large distances ExOR with AARF is able to offer the highest throughput. Here in the multi-rate environment the degrees of freedom (candidate and bit-rate selection) are too large for ExOR and AARF.","PeriodicalId":359452,"journal":{"name":"2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123935173","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}
{"title":"Surface-Trace Feasibility for IR-Based Position-Sensing Devices","authors":"A. Goto, Y. Omura","doi":"10.1109/SENSORCOMM.2008.42","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2008.42","url":null,"abstract":"Feasibility of using IR-based position-sensing devices to trace the surfaces of objects encountered by robots, wheelchairs, and other vehicles is examined. Experiments demonstrate the successful capture of the outline of several objects.","PeriodicalId":359452,"journal":{"name":"2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124723088","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}
{"title":"Architecture for the Internet of Things (IoT): API and Interconnect","authors":"I. Grønbaek, Telenor R&i","doi":"10.1109/SENSORCOMM.2008.20","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2008.20","url":null,"abstract":"The proposed architecture is structured into a secure API, a backbone, and separate device networks with standard interface to the backbone. The API decouples innovation of services and service logic from protocols and network elements. It also enables service portability between systems, i.e. a service may be allocated to end-systems or servers, with possible relocation and replication throughout its lifecycle. Ubiquitous service provisioning depends on interoperability, not only for provisioning of a standard QoS controlled IP bearer, but also for cross domain naming, security, mobility, multicast, location, routing and management, including fair compensation for utility provisioning. The proposed architecture not only includes these critical elements but also caters for multi-homing, mobile networks with dynamic membership, and third party persistent storage based on indirection.","PeriodicalId":359452,"journal":{"name":"2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121502760","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}
{"title":"Finding Aggregation Tree with Genetic Algorithm for Network Correlated Data Gathering","authors":"H. Habibi-Masouleh, S. Tahaee, A. Jahangir","doi":"10.1109/SENSORCOMM.2008.19","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2008.19","url":null,"abstract":"The critical issue in designing correlated data networks like Wireless Sensor Networks is to minimize the total cost of data transmission in the network, and decrease the amount of data flow. The problem of finding optimal aggregation tree for correlated data gathering in single sink network is considered as an NP-Complete problem and hence heuristic methods are usually applied to solve it [1]. In this paper, we apply genetic algorithm (GA) to solve the problem. In our method, we improve the performance of genetic search by selecting proper initial population. This initial population is determined in two ways, by using Primepsilas algorithm, and shortest path tree. The main issue is to regard nodes individually, and predict their behavior in global optimum. We use Node-Based genetic algorithm for building the communication tree to improve the encoding and decoding process, locality and heritability versus typical GAs.","PeriodicalId":359452,"journal":{"name":"2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122193168","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}
{"title":"Coarse-Grain Data Gathering in Continuous Query for Periodical Phenomena in Wireless Sensor Networks","authors":"Jun-Zhao Sun","doi":"10.1109/SENSORCOMM.2008.62","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2008.62","url":null,"abstract":"This paper presents a query optimization method for continuous data gathering in sensor networks. The method is based on a coarse-grain data collection approach by using the setting of thresholds and the analysis on the content to be sent over the network. In particular, the paper concentrates on the situation where phenomena under monitoring appear a periodical feature. An initiative data model is first created, and then at each single sensor node, instead of direct delivery of each result data, data communication is needed only when the current data is out of the range constrained by the periodical data model. The performance of the proposed algorithms shows that the proposed methods can achieve better performance than without performing the optimization.","PeriodicalId":359452,"journal":{"name":"2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)","volume":"6 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131451192","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}
{"title":"Performance Evaluation of Priority Packet for Wireless Sensor Network","authors":"H. Goh, K. Kwong, C. Michie, Ivan Andonovic","doi":"10.1109/SENSORCOMM.2008.90","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2008.90","url":null,"abstract":"Wireless sensor network has been widely used in many types of monitoring application in these recent years. For monitoring application such as forest or building monitoring, sensor nodes equipped with temperature sensor, smoke detector and camera will trigger immediately when a fire breaks out. Due to those sensor nodes are transmitting the sensor packets to a sink node at the same time and without a proper control, the traffic will be congested and causing huge amount of packet losses in this situation. Therefore, a priority scheme is needed to allow some selected nodes' information to reach the base station for the sake of data completeness. This paper evaluates the performance of priority packet in a congested traffic.","PeriodicalId":359452,"journal":{"name":"2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131029742","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}
{"title":"Configuration of Sensor Networks by Energy Minimisation","authors":"S. Zairi, B. Zouari, É. Niel","doi":"10.1109/SENSORCOMM.2008.106","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2008.106","url":null,"abstract":"Recent advances in wireless sensor networks have led to many new protocols specifically designed for sensor networks where energy awareness is an essential consideration. Attention has been mostly directed towards routing protocols. These protocols generally implement a view embracing a local energy reserve. This paper presents an algorithm for determining optimal paths connecting sensor nodes to the sink. These optimal paths contribute to minimizing intermediate hops and consider a global energy reserve. Most of these sensor networks will require application specific functionalities and performance requirements because of the wide range of their applications. Modelling sensor network behaviour before implementation and deployment is therefore crucial to programming efficiently the network application and to validating all its protocols. Existing works suffer from the problem of insufficient formal models for sensor network validations. Such models enable formal verification of all sensor network properties prior to deployment. This paper will also present a formal model representing sensor network behaviour.","PeriodicalId":359452,"journal":{"name":"2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131017824","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}
{"title":"Real-World Performance of Clear Channel Assessment in 802.15.4 Wireless Sensor Networks","authors":"A. Kiryushin, A. Sadkov, A. Mainwaring","doi":"10.1109/SENSORCOMM.2008.58","DOIUrl":"https://doi.org/10.1109/SENSORCOMM.2008.58","url":null,"abstract":"There is a general belief that in CSMACA-based wireless sensor networks (WSN) a significant number of collisions happen only because of hidden terminals. The situation when nodes start transmissions almost at the same time is considered negligible. Our experiments with motes with CC2420 radio shows that a significant number of collisions can occur even when transmitters can hear each other. The CCA (Clear Channel Assessment) in the CC2420 is calculated on the basis of channel measurement over the last 0.128 ms, and for this reason it may fail to detect a busy channel if transmissions started less than 0.128 ms before CCA sampling. Our results indicate that during such a collisions only the packets from the node with the weaker signal are lost because of capture effects, in contrast to collisions that happen because of hidden terminals when both packets can be lost. It was also found that close to the noise floor, CCA thresholding allows one to reduce the amount of such collisions significantly. Improvement for models of 802.15.4-compliant radios is suggested.","PeriodicalId":359452,"journal":{"name":"2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114814699","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}