发布求助
文献互助 智能选刊 最新文献

2006 Symposium on Communications and Vehicular Technology最新文献

筛选
英文 中文
Combined Spectrum Pooling and Adaptive Bit Loading for Cognitive Radio OFDM Based System 基于认知无线电OFDM系统的组合频谱池和自适应比特加载
2006 Symposium on Communications and Vehicular Technology Pub Date : 2006-11-01 DOI: 10.1109/SCVT.2006.334376
I. Budiarjo, H. Nikookar, L. Ligthart
{"title":"Combined Spectrum Pooling and Adaptive Bit Loading for Cognitive Radio OFDM Based System","authors":"I. Budiarjo, H. Nikookar, L. Ligthart","doi":"10.1109/SCVT.2006.334376","DOIUrl":"https://doi.org/10.1109/SCVT.2006.334376","url":null,"abstract":"This paper presents the combination of adaptive bit loading and spectrum pooling to be applied in a cognitive radio orthogonal frequency division multiplexing (OFDM) based system. Adaptive bit loading is a method to adapt the constellation size of the transmitted signal according to the channel variations by exclusion of heavily faded carriers from transmission and as a compensation higher modulation modes are allocated to subcarriers with good SNR. Windowing of OFDM signal is a spectrum pooling method for shaping the signal spectrum in order to reduce interference to neighbouring system (legacy users). In this paper different OFDM adaptive bit loading algorithms are combined with several window functions, and the bit error rate performance of the system is simulated for a wide sense stationary uncorrelated scattering (WSSUS) mobile multipath channel. The new results of this paper show how promising is the combination of bit loading algorithm and window form","PeriodicalId":233922,"journal":{"name":"2006 Symposium on Communications and Vehicular Technology","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123496441","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
Optimal beam forming in the presence of mutual coupling 相互耦合下的最佳光束成形
2006 Symposium on Communications and Vehicular Technology Pub Date : 2006-11-01 DOI: 10.1109/SCVT.2006.334364
R. Goossens, H. Rogier
{"title":"Optimal beam forming in the presence of mutual coupling","authors":"R. Goossens, H. Rogier","doi":"10.1109/SCVT.2006.334364","DOIUrl":"https://doi.org/10.1109/SCVT.2006.334364","url":null,"abstract":"An optimal beam forming method is proposed which incorporates all electromagnetic characteristics of the antenna array, including mutual coupling. The optimal beam forming technique minimizes the total power radiated by the antenna array while the response in a desired direction is maintained. By considering the active element patterns and the impedance matrix a computational efficient beam forming algorithm is obtained which is able to manage all mutual coupling effects. Simulation results show the performance of the proposed algorithm applied to an antenna array in the presence of a platform","PeriodicalId":233922,"journal":{"name":"2006 Symposium on Communications and Vehicular Technology","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122865538","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
Parametric Versus Nonparametric Data-Aided Channel Estimation in a Multipath Fading Environment 多径衰落环境下的参数与非参数数据辅助信道估计
2006 Symposium on Communications and Vehicular Technology Pub Date : 2006-11-01 DOI: 10.1109/SCVT.2006.334354
D. V. Weiden, M. Moeneclaey, H. Steendam
{"title":"Parametric Versus Nonparametric Data-Aided Channel Estimation in a Multipath Fading Environment","authors":"D. V. Weiden, M. Moeneclaey, H. Steendam","doi":"10.1109/SCVT.2006.334354","DOIUrl":"https://doi.org/10.1109/SCVT.2006.334354","url":null,"abstract":"This paper compares a parametric and a nonparametric channel estimation method in a multipath fading environment. In the parametric method the gains and delays are estimated and these estimates are used to compute the samples of the received symbol pulse. In the nonparametric method the samples of the received pulse are estimated directly, ignoring the underlying multipath channel structure. We compare these two channel estimation methods in terms of accuracy (characterized by the MSE on the samples of the received pulse) and computational complexity. We also investigate the influence of channel estimation errors on the BER of a decision feedback equalizer","PeriodicalId":233922,"journal":{"name":"2006 Symposium on Communications and Vehicular Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131043157","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
Impact of nonlinearities in multiple-antenna OFDM transceivers 非线性对多天线OFDM收发器的影响
2006 Symposium on Communications and Vehicular Technology Pub Date : 2006-11-01 DOI: 10.1109/SCVT.2006.334371
T. Schenk, Peter F. M. Smulders, E. Fledderus
{"title":"Impact of nonlinearities in multiple-antenna OFDM transceivers","authors":"T. Schenk, Peter F. M. Smulders, E. Fledderus","doi":"10.1109/SCVT.2006.334371","DOIUrl":"https://doi.org/10.1109/SCVT.2006.334371","url":null,"abstract":"This paper investigates the performance impact of nonlinearities in the transmitter (TX) as well as the receiver (RX) of multiple-antenna OFDM systems. First different, previously proposed, nonlinearity models are reviewed and their equivalence is shown. Subsequently, analytical expressions are derived for the probability of error of multiple-input multiple-output (MIMO) OFDM systems in Rayleigh-faded channels, which show good agreement with results from a simulation study. It can be concluded from the results that for high SNR values the TX nonlinearities cause performance floors, which are independent of the MIMO configuration. For RX nonlinearities, however, the performance in this high SNR region does depend on the MIMO configuration. The results can be used to derive limits for the permissible nonlinearities in MIMO OFDM systems","PeriodicalId":233922,"journal":{"name":"2006 Symposium on Communications and Vehicular Technology","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129981766","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: 14
On the design of a Train Communication Management platform 列车通信管理平台的设计
2006 Symposium on Communications and Vehicular Technology Pub Date : 2006-11-01 DOI: 10.1109/SCVT.2006.334366
S. Verstichel, K. Lamont, F. De Turck, F. Vermeulen
{"title":"On the design of a Train Communication Management platform","authors":"S. Verstichel, K. Lamont, F. De Turck, F. Vermeulen","doi":"10.1109/SCVT.2006.334366","DOIUrl":"https://doi.org/10.1109/SCVT.2006.334366","url":null,"abstract":"A train is a complex and dynamic environment. Coaches couple and decouple many times during the day, the direction of travel changes often, as do the scheduled duties and the corresponding needed passenger information. To support the on-board systems in such a dynamic environment, there is a need for a strong and robust management infrastructure. The train management system. As the development of train management systems evolves towards an IP-based approach, a strong connectivity management platform supporting the train management system is needed. We designed and implemented such a connectivity management platform, maintaining and controlling the configuration of the IP-network in the train, and this platform is detailed in this paper. Also, a service layer on top of the IP-network, providing facilities for a logical addressing scheme and event-based asynchronous communication, is presented. It will be shown in the paper that, by using such a connectivity management platform and overlaying service infrastructure, a lot of repetitive, low level programming is avoided. Moreover, the design details are presented to provide a robust and self-healing connectivity management system","PeriodicalId":233922,"journal":{"name":"2006 Symposium on Communications and Vehicular Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130817692","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
Performance Analysis of Direct Sequence CDMA in Impulse Noise Channel 直接序列CDMA在脉冲噪声信道中的性能分析
2006 Symposium on Communications and Vehicular Technology Pub Date : 2006-11-01 DOI: 10.1109/SCVT.2006.334375
V. Tamgnoue, V. Moeyaert, S. Bette, Patrice Mégret
{"title":"Performance Analysis of Direct Sequence CDMA in Impulse Noise Channel","authors":"V. Tamgnoue, V. Moeyaert, S. Bette, Patrice Mégret","doi":"10.1109/SCVT.2006.334375","DOIUrl":"https://doi.org/10.1109/SCVT.2006.334375","url":null,"abstract":"In this paper, we analyse performances of DS-CDMA-QAM (direct sequence-code division multiple access-quadrature amplitude modulation) in presence of impulse noise. This analysis is carried out theoretically and confirmed by simulation. It allows to precisely determine the reduction of the penalty induced by impulse noise on the SEP (symbol error probability) of DS-CDMA-QAM transmission","PeriodicalId":233922,"journal":{"name":"2006 Symposium on Communications and Vehicular Technology","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115237122","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: 0
Investigations on Link-Level Inter-Cell Interference in OFDMA Systems OFDMA系统链路级小区间干扰研究
2006 Symposium on Communications and Vehicular Technology Pub Date : 2006-11-01 DOI: 10.1109/SCVT.2006.334370
S. Plass, X. Doukopoulos, R. Legouable
{"title":"Investigations on Link-Level Inter-Cell Interference in OFDMA Systems","authors":"S. Plass, X. Doukopoulos, R. Legouable","doi":"10.1109/SCVT.2006.334370","DOIUrl":"https://doi.org/10.1109/SCVT.2006.334370","url":null,"abstract":"This paper addresses investigations and modeling of inter-cell interference of a next generation cellular orthogonal frequency division multiplexing access (OFDMA) transmission system on the link-level. Different strategies, i.e., Gaussian approximation (GA) and binomial method, for modeling the intercell interference are given and investigated. Furthermore, the influence of the closest interfering cells and time synchronization offsets are in the focus. Concluding from the investigations, the GA for the inter-cell interference is an appropriate modeling in the case of single antenna systems and linear receivers","PeriodicalId":233922,"journal":{"name":"2006 Symposium on Communications and Vehicular Technology","volume":"222 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124396736","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: 30
Reliable Communication System using Stable Routes and the Position Based Delay Tolerant Transfer on MANETs 基于稳定路由和位置容延迟传输的manet可靠通信系统
2006 Symposium on Communications and Vehicular Technology Pub Date : 2006-11-01 DOI: 10.1109/SCVT.2006.334382
A. Shimizu, K. Monden, M. Hayashi, S. Matsui
{"title":"Reliable Communication System using Stable Routes and the Position Based Delay Tolerant Transfer on MANETs","authors":"A. Shimizu, K. Monden, M. Hayashi, S. Matsui","doi":"10.1109/SCVT.2006.334382","DOIUrl":"https://doi.org/10.1109/SCVT.2006.334382","url":null,"abstract":"There are many researches and developments toward the utilization of MANETs in real case. As important challenging issues, the ensuring of each link's quality on the end-to-end pathways, and enabling the data conveyance on MANETs where the end-to-end route does not always exist can be listed. We developed the module that prevents weak links to be chosen as a route. This module decreases unexpected packet losses. Also, we introduced the protocol \"position and motion direction based multi-hop delay tolerant transfer\" that chooses the best intermediate node as the next data carrier. The simulation result marked high packet delivery ratio. Another noteworthy result is that the case with both position and direction information as the selection index overcomes the case only with position information","PeriodicalId":233922,"journal":{"name":"2006 Symposium on Communications and Vehicular Technology","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126314917","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: 0
A Balanced Capacity Implementation of DSM for DSL Systems DSL系统中DSM的平衡容量实现
2006 Symposium on Communications and Vehicular Technology Pub Date : 2006-11-01 DOI: 10.1109/SCVT.2006.334369
A. Kalakech, J. Louveaux, L. Vandendorpe
{"title":"A Balanced Capacity Implementation of DSM for DSL Systems","authors":"A. Kalakech, J. Louveaux, L. Vandendorpe","doi":"10.1109/SCVT.2006.334369","DOIUrl":"https://doi.org/10.1109/SCVT.2006.334369","url":null,"abstract":"This paper investigates a fair resource allocation method in crosstalk limited DSL systems. As a measure of fairness, the concept of balanced capacity (BC), introduced in T. Sartenaer et al. (2005), is used. BC corresponds to a point of the boundary of the capacity region where each user experiences the same relative loss with respect to his maximum capacity. Our goal is to propose algorithms to compute the corresponding point in DSL (digital subscriber line) systems where some users suffer from a near-far situation and for constraints on individual power spectrum densities. Results are reported for typical crosstalk limited cases and are compared to a resource allocation optimized for the sum rate","PeriodicalId":233922,"journal":{"name":"2006 Symposium on Communications and Vehicular Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121592287","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
Implementation of an Open-Source UTRAN Testbed 实现一个开源的UTRAN测试平台
2006 Symposium on Communications and Vehicular Technology Pub Date : 2006-11-01 DOI: 10.1109/SCVT.2006.334380
Van Peteghem
{"title":"Implementation of an Open-Source UTRAN Testbed","authors":"Van Peteghem","doi":"10.1109/SCVT.2006.334380","DOIUrl":"https://doi.org/10.1109/SCVT.2006.334380","url":null,"abstract":"We present here the implementation of our UTRAN testbed. The article focuses on the organisation of the Linux traffic controller to investigate, over a classical Ethernet (wired) link, two typical properties of the air interface of an UMTS network, namely the availability of three different transport channels known as DCH, DSCH and FACH, and the significant error rate of radio communications","PeriodicalId":233922,"journal":{"name":"2006 Symposium on Communications and Vehicular Technology","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121915808","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信