2008 1st IFIP Wireless Days最新文献_第5页

Data collection in wireless sensor networks assisted by mobile collector 移动采集器辅助无线传感器网络中的数据采集

2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812895

Tzung-Cheng Chen, Tzung-Shi Chen, Ping-Wen Wu

{"title":"Data collection in wireless sensor networks assisted by mobile collector","authors":"Tzung-Cheng Chen, Tzung-Shi Chen, Ping-Wen Wu","doi":"10.1109/WD.2008.4812895","DOIUrl":"https://doi.org/10.1109/WD.2008.4812895","url":null,"abstract":"The subject of acquiring sensed data with the aid of a mobile collector from a wireless sensor network (WSN) that possesses partitioned/islanded WSNs is investigated. The battery depletion of sensor nodes can lead to partitioned/islanded WSNs; as a result, the base station collects merely somewhat sensed data while data routing difficulty arisen. To ease the effect of partitioned or islanded WSNs, a mobile collector is employed to assist collecting data in partitioned/islanded WSNs and bring those collected data stored locally back to the base station. To carry out this work, two key tasks are of concerns, identifying the locations of partitioned/islanded WSNs and navigating the mobile collector to the desired location. To identify the locations of partitioned/islanded WSNs, two control approaches, global-based approach and local-based approach, are proposed. Accordingly, the navigating strategy of the mobile collector can be scheduled based on the time and location. Three scheduling strategies are introduced, time-based scheduling, location-based scheduling, and dynamic-moving-based scheduling. Upon these strategies, the mobile collector is about to collect the sensed data back from partitioned/islanded WSNs. Therefore, the efficiency of sensed data collected by the base station in partitioned/islanded WSNs is improved. Through simulation under the environment of ns-2 simulator, the results show that the collecting strategies proposed can dramatically improve sensed data collecting performance in partitioned or islanded WSNs.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"101 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132225759","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: 5

VoIP call admission control for last mile Wireless Mesh Networks 最后一英里无线网状网络的VoIP呼叫准入控制

2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812897

Edgar Piacentini, M. Fonseca, Anelise Munaretto

引用次数: 4

Random and realistic mobility models impact on the performance of bypass-AODV routing protocol 随机和现实的移动模型对旁路- aodv路由协议的性能有影响

2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812840

Ahed Alshanyour, U. Baroudi

{"title":"Random and realistic mobility models impact on the performance of bypass-AODV routing protocol","authors":"Ahed Alshanyour, U. Baroudi","doi":"10.1109/WD.2008.4812840","DOIUrl":"https://doi.org/10.1109/WD.2008.4812840","url":null,"abstract":"Due to lack of mass deployment of wireless ad hoc networks, simulation is the main tool to evaluate and compare different routing protocol proposals. Previous studies have shown that a certain routing protocol behaves differently under different presumed mobility patterns. Bypass-AODV is a new optimization of the AODV routing protocol for mobile ad-hoc networks. It is proposed as a local recovery mechanism to enhance the performance of AODV routing protocol. It shows outstanding performance under random waypoint mobility model compared with AODV. However, random waypoint is a simple model that may be applicable to some scenarios but it is not sufficient to capture some important mobility characteristics of scenarios where MANETs deployed. In this work, we would like to investigate the performance of Bypass-AODV under wide range of mobility models including other random mobility models, group mobility models and vehicular mobility models. Ns-2 simulation results show that bypass-AODV is insensitive to the selected random mobility model and it has a clear performance improvement compared to AODV. It shows a comparable performance under group mobility model compared to AODV. But, for vehicular mobility models, bypass-AODV is suffering from performance degradation at high speed conditions.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134275598","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: 20

VIMLOC: Virtual Home Region multi-hash Location Service in wireless mesh networks VIMLOC:无线网状网络中的虚拟家庭区域多哈希位置服务

2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812852

A. Krendzel, J. Mangues‐Bafalluy, M. Requena-Esteso, José Núñez-Martínez

{"title":"VIMLOC: Virtual Home Region multi-hash Location Service in wireless mesh networks","authors":"A. Krendzel, J. Mangues‐Bafalluy, M. Requena-Esteso, José Núñez-Martínez","doi":"10.1109/WD.2008.4812852","DOIUrl":"https://doi.org/10.1109/WD.2008.4812852","url":null,"abstract":"Position-based routing schemes (e.g. geographic routing) are expected to improve scalability of wireless networks, as they allow reducing the state information stored in nodes compared to topology-based routing. Moreover, geographic routing schemes need to differentiate between the identifier of a node and its location. Given the mobility of (some) nodes, their location may continuously change, and there is the need to map between both (i.e. node ID and current location of this node) as part of the mobility management tasks. Therefore, of all mobility management building blocks, we focus on location management, which is in charge of this mapping. The design of distributed location management schemes for large wireless mesh networks (WMNs) remains a challenge. In this paper, the distributed Virtual Home Region Multi-Hash Location Service (VIMLOC) is proposed as location management scheme for WMNs. It is based on the Virtual Home Region concept, but it is adapted to the requirements of large-scale WMNs. The design of VIMLOC takes into account the existence of a stable wireless backbone. It also provides mechanisms to replicate location information for robustness and packet diverting capabilities for accuracy, among other improvements. A brief description of the implementation of VIMLOC using the Click modular router is also presented as well as a preliminary evaluation. To the best of our knowledge, this is the first location service scheme specially designed and implemented for WMNs.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126193435","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 measurement platform for energy harvesting and software characterization in WSNs 无线传感器网络能量采集与软件表征的测量平台

2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812843

Philipp M. Glatz, Philipp Meyer, A. Janek, T. Trathnigg, C. Steger, R. Weiss

{"title":"A measurement platform for energy harvesting and software characterization in WSNs","authors":"Philipp M. Glatz, Philipp Meyer, A. Janek, T. Trathnigg, C. Steger, R. Weiss","doi":"10.1109/WD.2008.4812843","DOIUrl":"https://doi.org/10.1109/WD.2008.4812843","url":null,"abstract":"Wireless Sensor Network (WSN) nodes are resource- constrained computing devices. Adaptive behavior of autonomously working WSNs tries to maximize the cost efficiency of deployments. This includes maximizing the lifetime through power consumption optimization and recharging energy reservoirs with the use of energy harvesting. The adaptive behavior that leads to efficient resource usage needs information about the WSNs energy balance for decision making. We present a novel platform to measure the harvested, stored and dissipated energy. For being applicable to different environments it allows to attach different energy harvesting devices (EHDs). EHDs do not provide power continuously. Power availability patterns are used to determine how these sources can be used efficiently. Models from harvesting theory try to adapt to it. We implement a model that targets energy neutrality on our platform. It is used to evaluate the model and improve it. Our novel platform can be used to evaluate theories that model different sources. It can utilize and characterize thermoelectric, piezoelectric and magnetic induction generators and solar cells. The measurement platform tracks energy dissipation too. Mote software is implemented to establish communication to the platform. A sample application on top of it shows that the system can be used for software characterization. This paper contributes a novel modular and low-power design for measurement platforms for WSNs. It shows utilization of different energy sources and the ability to supply different mote types. Our work shows how theories for energy harvesting can be evaluated and improved. Our work also contributes to the field of simulation and emulation through online software characterization. The approach improves in accuracy and completeness over the capabilities of offline simulation.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127261572","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: 18

BER performance of smart antenna systems operating over Rayleigh fading channels 瑞利衰落信道下智能天线系统的误码率性能

2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812887

R. Haddad, R. Bouallègue

引用次数: 4

Optimizing the wireless sensor network lifetime under reliability constraint 可靠性约束下无线传感器网络寿命优化

2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812881

M. Esseghir, H. Perros

{"title":"Optimizing the wireless sensor network lifetime under reliability constraint","authors":"M. Esseghir, H. Perros","doi":"10.1109/WD.2008.4812881","DOIUrl":"https://doi.org/10.1109/WD.2008.4812881","url":null,"abstract":"Both network lifetime and reliability are of major concern in wireless sensor networks. In this paper, we propose to optimize the wireless sensor network lifetime under a reliability constraint. First, we define the reliability with regards to the accuracy of observations made through sensor nodes. Then, we introduce a function that links reliability to the average amount of energy consumed by the network when reporting an event to the data collector. Based on this function, we bring out the required number of successive readings to be performed in order to optimize both network lifetime and reliability. Subsequently, we give a different definition to the reliability in order to maximize the network lifetime by relaxing the reliability constraint. In this case, the reliability is defined with regards to the number of non-reported events. We show that the network lifetime does not increase indefinitely when relaxing the reliability constraint. Finally, we conclude that new node placement strategies should be designed for wireless sensor applications that tolerate losing events (i.e. events that are not reported to the data collector), in order to maximize their network lifetime.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130479547","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: 7

Base-station controlled clustering scheme in wireless sensor networks 无线传感器网络中的基站控制集群方案

2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812856

S. Manjula, B. Reddy, K. Shaila, L. Nalini, K. Venugopal, L. Patnaik

引用次数: 14

Impact of Iub flow control on the proportional fair scheduler in HSDPA HSDPA中ub流量控制对比例公平调度的影响

2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812854

Abdulmohsen Mutairi, U. Baroudi

引用次数: 2

Design, deployment and performance of a complete real-time ZigBee localization system 完整的实时ZigBee定位系统的设计、部署和性能

2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812912

F. Sottile, Roberta Giannantonio, M. Spirito, F. Bellifemine

引用次数: 14