2010 European Wireless Conference (EW)最新文献_第5页

A coalitional game-inspired algorithm for resource allocation in orthogonal frequency division multiple access 正交频分多址资源分配的联合博弈算法

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483424

F. Shams, G. Bacci, M. Luise

引用次数: 1

Comparison of RF-repeater efficiency in macrocellular network topologies 大蜂窝网络拓扑中射频中继器效率的比较

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483387

P. Lähdekorpi, J. Itkonen, J. Lempiäinen

引用次数: 3

Rf propagation through Transparent Conductors in energy efficient windows 射频传播通过透明导体在节能窗口

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483412

D. Stolhofer, H. Doelecke, Yaqiang Liu, P. O'eary

引用次数: 7

An optimal setting for the parameters of an Intelligent Flooding Scheme in VANETs VANETs中智能驱水方案参数的优化设置

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483439

Luca Anchora, Luca Casone, Giovanni Ciccarese, M. De Blasi, P. Marra, Cosimo Palazzo

{"title":"An optimal setting for the parameters of an Intelligent Flooding Scheme in VANETs","authors":"Luca Anchora, Luca Casone, Giovanni Ciccarese, M. De Blasi, P. Marra, Cosimo Palazzo","doi":"10.1109/EW.2010.5483439","DOIUrl":"https://doi.org/10.1109/EW.2010.5483439","url":null,"abstract":"A number of Intelligent Flooding Schemes have been recently proposed in order to optimize message dissemination in Vehicular Ad Hoc Networks. In this paper we focus on a scheme which exploits a distributed timer-based contention mechanism for allowing only contention winners to forward the message and to suppress other potential forwarders. In particular, at each hop along the message propagation direction, potential forwarders wait for a time which is inversely proportional to their distance from the sender before rebroadcasting the packet; a potential forwarder is suppressed if it intercepts the packet rebroadcasted by another node during the waiting time. Performance of the scheme, in terms of message delivery ratio, delay and channel utilization, depends on the maximum waiting time (MaxWT) and on the maximum distance R allowed between the sender and a potential forwarder. This research work aims at evaluating an optimal setting of these parameters. We show that, although the values of MaxWT and R which maximize performance vary with traffic load and vehicle density, a dynamic algorithm is not essential. Then, we report how to set the values of the parameters to achieve a performance that is acceptable in the scenarios which we have considered.","PeriodicalId":232165,"journal":{"name":"2010 European Wireless Conference (EW)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124288376","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

Performance evaluation of OFDMA femtocells link-layers in uncontrolled deployments 非受控部署下OFDMA飞蜂窝链路层性能评估

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483451

Tania Villa, R. Merz, Pablo Vidales

{"title":"Performance evaluation of OFDMA femtocells link-layers in uncontrolled deployments","authors":"Tania Villa, R. Merz, Pablo Vidales","doi":"10.1109/EW.2010.5483451","DOIUrl":"https://doi.org/10.1109/EW.2010.5483451","url":null,"abstract":"The rapidly increasing use of smart phones with Internet access or data connectivity solutions for laptops is putting the infrastructure of cellular operators under stress. Both the number of devices and the bandwidth requirement are increasing. Indoor usage is also becoming prominent. One envisioned solution is the use of so-called femtocells. Femtocells are portable and low-cost base-stations for in-home usage. They are deployed by endusers and are connected to the operator network by a digital subscriber line (DSL), cable modem or optical fiber connection. The femtocells are operated along with the macrocell in a typical two-tier network structure. The regular base stations operate in one tier and the femtocells operate in the other tier. In a shared spectrum configuration, the uncontrolled deployment and loose control of the femtocells generate challenging interference management scenarios. With extensive simulations, we perform an evaluation of several femtocell to femtocell interference scenarios and one macrocell to femtocell scenario. We focus on typical 4G cases, with an orthogonal frequency-division multiple access (OFDMA) physical layer and full frequency reuse. Our results show that without any interference management, system performance is significantly degraded and that complete outages occur in specific cases.","PeriodicalId":232165,"journal":{"name":"2010 European Wireless Conference (EW)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130846837","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: 13

A block-Alamouti scheme for filter bank based multicarrier transmission 基于滤波器组的多载波传输block-Alamouti方案

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483517

M. Renfors, T. Ihalainen, T. H. Stitz

引用次数: 78

Energy utilization of HTAP under specific node placements in Wireless Sensor Networks 无线传感器网络中特定节点位置下HTAP的能量利用

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483490

Charalambos Sergiou, V. Vassiliou

{"title":"Energy utilization of HTAP under specific node placements in Wireless Sensor Networks","authors":"Charalambos Sergiou, V. Vassiliou","doi":"10.1109/EW.2010.5483490","DOIUrl":"https://doi.org/10.1109/EW.2010.5483490","url":null,"abstract":"Energy utilization is a challenging task that is being encountered in low-powered Wireless Sensor Networks (WSNs) when designing an algorithm, protocol or hardware. Congestion is a factor that can affect a network's lifetime (and energy utilization), since it usually leads to packet drops or collisions in the medium followed by possible retransmissions. Forwarding data packets through alternative paths is a way to counter congestion in WSNs. Proper node placement is essential to ensure good sensing coverage and communication connectivity. Node placement could also be affected by the need to create multiple routes to the sink; therefore, it can be proven vital for the improvement of energy utilization performance of this type of congestion control algorithms. In this paper we evaluate the energy utilization performance of HTAP (Hierarchical Tree Alternative Path) a congestion control and avoidance algorithm whose operation is based on a multipath routing scheme. HTAP energy utilization is evaluated under specific node placements and in correlation with a comparable routing scheme (Directed Diffusion). Through simulations, conclusions are extracted, suggesting node placements that assist in uniform and efficient energy utilization in WSNs.","PeriodicalId":232165,"journal":{"name":"2010 European Wireless Conference (EW)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124438192","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: 17

Constructing rigorous MANET simulation scenarios with realistic mobility 构建具有真实机动性的严格的MANET仿真场景

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483539

Aarti Munjal, T. Camp, W. Navidi

{"title":"Constructing rigorous MANET simulation scenarios with realistic mobility","authors":"Aarti Munjal, T. Camp, W. Navidi","doi":"10.1109/EW.2010.5483539","DOIUrl":"https://doi.org/10.1109/EW.2010.5483539","url":null,"abstract":"Researchers need to choose an appropriate scenario to study the performance of a Mobile Ad hoc NETwork (MANET) via simulation. For example, routing is not properly evaluated when the shortest path between each pair of nodes in the simulation scenario is two or less. Various standards may be required to construct a credible MANET simulation scenario. In this work, we concentrate upon three standards for evaluating MANET routing protocols. Metrics involved in these standards are: average shortest-path hop count, average network partitioning, and average neighbor count. The main contribution of this work is to provide researchers with models that allow them to easily construct rigorous MANET simulation scenarios. The input to our models is the desired values for the three metrics mentioned; our models then output parameters for a simulation scenario that approximately meet the researcher's target values for the metrics. Our models were designed using a recently published mobility model that was constructed by extracting the statistical features of real human movement. Our models enable researchers to test MANET routing protocols in a more realistic manner, thereby improving the credibility of their MANET simulation studies.","PeriodicalId":232165,"journal":{"name":"2010 European Wireless Conference (EW)","volume":"09 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127306720","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: 26

Evaluation of wireless multi-hop networks in tactical scenarios using BonnMotion 利用BonnMotion对战术场景下无线多跳网络进行评估

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483453

N. Aschenbruck, Raphael Ernst, P. Martini

引用次数: 3

Auction based interface selection with Media Independent Handover services and flow management 基于拍卖的接口选择与媒体独立的移交服务和流管理

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483497

M. A. Khan, U. Toseef, Stefan Marx, C. Goerg

引用次数: 28