IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference最新文献_第7页

On the Level Crossing Rate and Average Fade Duration of Composite Multipath/Shadowing Channels 复合多径/阴影信道的水平交叉率和平均衰落持续时间

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.803

I. Trigui, A. Laourine, S. Affes, A. Stephenne

引用次数: 5

Distributed Detection of Primary Signals in Fading Channels for Cognitive Radio Networks 认知无线电网络衰落信道中主信号的分布式检测

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.605

P. Kaligineedi, V. Bhargava

引用次数: 27

Content Protection through Multicast IP Flow Aggregation in Optical Networks 基于光网络组播IP流聚合的内容保护

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.504

Yi Zhu, J. Jue

引用次数: 2

BER Analysis for Asymmetric OFDM Systems 非对称OFDM系统的误码率分析

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.874

Lin Luo, Jian Zhang, Zhenning Shi

引用次数: 15

On the Gains of Deterministic Placement and Coordinated Activation in Sensor Networks 传感器网络中确定性布局和协调激活的增益

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.72

V. Fodor, Ioannis Glaropoulos

引用次数: 3

Cache-Based Content Delivery in Opportunistic Mobile Ad Hoc Networks 机会移动自组织网络中基于缓存的内容传递

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.153

Yaozhou Ma, M. Kibria, A. Jamalipour

{"title":"Cache-Based Content Delivery in Opportunistic Mobile Ad Hoc Networks","authors":"Yaozhou Ma, M. Kibria, A. Jamalipour","doi":"10.1109/GLOCOM.2008.ECP.153","DOIUrl":"https://doi.org/10.1109/GLOCOM.2008.ECP.153","url":null,"abstract":"Over the last few years, multimedia content sharing through different service providers have gained popularity among the Internet users. The development of wireless mobile devices with enhanced features have further fueled this phenomenon. While such content sharing in Internet is accommodated through an overlay architecture, for infrastructure-less environment such as wireless mobile ad hoc networks (MANETs) experiencing intermittent connectivity, the distribution mechanism is not that straightforward. Arising from inherent MANET limitations such as short radio transmission range, sporadic node densities and constrained power, intermittent connectivity limits the ability of the network to provide successful content delivery. Although some solutions have been proposed in literature, they fail to consider the mobility characteristics of nodes for making decisions regarding the caching of contents for future delivery. Moreover, user-centric service requirements are also not addressed where different subscribers prefer different content profiles. To address this issue, a novel content sharing framework with optimized caching strategy is proposed in this paper. Based on the cached subscription profiles, the framework exploits two decision-making technologies namely analytic hierarchy process (AHP) and grey relational analysis (GRA) to evaluate all possible content requests between two meeting nodes and subsequently request the preferred contents for future encounters. Simulation results validate the improved performance of the proposed distribution framework in comparison to the existing schemes.","PeriodicalId":297815,"journal":{"name":"IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130449153","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

On the Effect of Antenna Height on the Characterization of the Indoor UWB Channel 天线高度对室内超宽带信道特性的影响

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.799

Umesh Shukla, H. Volos, R. Buehrer

{"title":"On the Effect of Antenna Height on the Characterization of the Indoor UWB Channel","authors":"Umesh Shukla, H. Volos, R. Buehrer","doi":"10.1109/GLOCOM.2008.ECP.799","DOIUrl":"https://doi.org/10.1109/GLOCOM.2008.ECP.799","url":null,"abstract":"Ultra-wideband (UWB) technology is being proposed for several short range wireless applications. Some of the applications, such as position location devices for rescue personnel, may require the antenna height to be close to the ground. In scenarios where the antenna height is very low (from 0 to 30 cm), propagation characteristics and channel modeling are needed to provide important insights for the application design. This paper presents time-domain measurements and channel characterization of the indoor UWB channel at three different antenna heights (7.5 cm, 26.5 cm, and 108.5 cm). The transmitting and receiving antennas are placed at heights referred to as near ground, middle ground, and above ground. The effects of the antenna height on the channel characteristics are analyzed. Both large and small-scale characteristics are evaluated and the results for different antenna heights are compared. The results show that large scale characteristics exhibit monotonic behavior with respect to antenna height while small scale characteristics do not follow this behavior. The possible explanations for the obtained results are also discussed.","PeriodicalId":297815,"journal":{"name":"IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133893895","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

Pipelined Implementation of TCAM-Based Search Engines in High-Performance IP Routers 基于tcam的搜索引擎在高性能IP路由器中的流水线实现

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.448

Hui Yu, Jing Chen, Jianping Wang, Si-Qing Zheng

引用次数: 0

Probabilistic Coverage Map for Mobile Sensor Networks 移动传感器网络的概率覆盖图

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.76

Ji Luo, Qian Zhang

引用次数: 12

Best-Effort Network Layer Packet Reordering in Support of Multipath Overlay Packet Dispersion 支持多路径覆盖包分散的最佳努力网络层包重排序

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.472

J. Lane, A. Nakao

{"title":"Best-Effort Network Layer Packet Reordering in Support of Multipath Overlay Packet Dispersion","authors":"J. Lane, A. Nakao","doi":"10.1109/GLOCOM.2008.ECP.472","DOIUrl":"https://doi.org/10.1109/GLOCOM.2008.ECP.472","url":null,"abstract":"Simultaneous use of multiple disjoint Internet paths holds promise for exploiting available bandwidth as well as reacting more quickly to Internet path faults. While routing overlay networks have provided a method for accessing these paths, out-of-order packet delivery, which results from dispersion of packets across paths of varying latency, severely degrades the performance of highly optimized transport protocols such as TCP, which assume largely in-order delivery. While traditional approaches perform reordering at the transport or application layers, such approaches have the disadvantage of entangling the complexity of reordering with their own operation, as well as requiring reimplementation for each protocol or application. Herein, we address these issues by proposing the modularization of packet reordering functionality as an optional, best-effort, network layer service for routing overlay networks. We empirically demonstrate the feasibility of this approach by showing that it can realize performance and reliability gains even using unmodified TCP in the face of highly multipath environments and heavy packet reordering.","PeriodicalId":297815,"journal":{"name":"IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134546741","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