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2010 IEEE 72nd Vehicular Technology Conference - Fall最新文献

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Impact of MIMO Pilot Sequence Length and Frame Length at Different Frequencies 不同频率下MIMO导频序列长度和帧长度的影响
2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594067
G. Colman, T. Willink
{"title":"Impact of MIMO Pilot Sequence Length and Frame Length at Different Frequencies","authors":"G. Colman, T. Willink","doi":"10.1109/VETECF.2010.5594067","DOIUrl":"https://doi.org/10.1109/VETECF.2010.5594067","url":null,"abstract":"The sensitivity of MIMO error performance to imperfect receiver channel state information is examined. Measurements made at three different UHF frequencies are used to show the effect of parameters such as training and frame lengths on error performance. The results show that the amount of training directly influences the supportable symbol rate and that the level of degradation in performance due to delay is highly dependent on frame length, frequency and channel geometry.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125655085","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
Electric Vehicles Network with Nomadic Portable Charging Stations 移动充电站的电动汽车网络
2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594437
Zheng Li, Z. Sahinoglu, Zhifeng Tao, K. Teo
{"title":"Electric Vehicles Network with Nomadic Portable Charging Stations","authors":"Zheng Li, Z. Sahinoglu, Zhifeng Tao, K. Teo","doi":"10.1109/VETECF.2010.5594437","DOIUrl":"https://doi.org/10.1109/VETECF.2010.5594437","url":null,"abstract":"A novel concept of portable charging station networks to serve Electric Vehicles is described. An optimum charging station deployment method is explained, and its performance has been simulated for single highway, two intersecting highways, and Manhattan-like grid traffic models. Outage probability and service waiting delay performances are evaluated. Impact of the number PCSs and the ratio of EVs to PCSs in the service area on outage probability and waiting delay are studied. The gained insights will be used in extending this pioneer step to a stochastic framework with more realistic traffic models.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"600 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132184994","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: 40
A Novel 3D Regular-Shaped Geometry-Based Stochastic Model for Non-Isotropic MIMO Mobile-to-Mobile Channels 一种基于三维规则几何的非各向同性MIMO移动到移动信道随机模型
2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594351
Xiang Cheng, Chengxiang Wang, Yi Yuan, D. Laurenson, Xiaohu Ge
{"title":"A Novel 3D Regular-Shaped Geometry-Based Stochastic Model for Non-Isotropic MIMO Mobile-to-Mobile Channels","authors":"Xiang Cheng, Chengxiang Wang, Yi Yuan, D. Laurenson, Xiaohu Ge","doi":"10.1109/VETECF.2010.5594351","DOIUrl":"https://doi.org/10.1109/VETECF.2010.5594351","url":null,"abstract":"This paper proposes a novel three-dimensional (3D) regular-shaped geometry-based stochastic model (RS-GBSM) for non-isotropic multiple-input multiple-output (MIMO) mobile-to-mobile (M2M) Ricean fading channels. The proposed model, combining a two-sphere model and an elliptic-cylinder model, is the first 3D RS-GBSM that has the ability to investigate the impact of the vehicular traffic density (VTD) on channel statistics and jointly consider the azimuth angle and elevation angle. From the proposed model, the space-time (ST) correlation function (CF) and the corresponding space-Doppler (SD) power spectral density (PSD) are derived. Finally, some numerical results and interesting observations are given.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130991782","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: 15
Analysis of Channel Capacity for LTE Downlink Multiuser MIMO Systems LTE下行链路多用户MIMO系统信道容量分析
2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594124
P. Xiao, Zihuai Lin, C. Cowan
{"title":"Analysis of Channel Capacity for LTE Downlink Multiuser MIMO Systems","authors":"P. Xiao, Zihuai Lin, C. Cowan","doi":"10.1109/VETECF.2010.5594124","DOIUrl":"https://doi.org/10.1109/VETECF.2010.5594124","url":null,"abstract":"The average channel capacity for 3GPP LTE downlink multiuser Multiple Input Multiple Output (MIMO) systems is analyzed in this paper. A packet scheduler is used to exploit the available multiuser diversity in all the three physical domains (i.e., space, time and frequency). A mathematical model is established to derive the channel capacity of multiuser MIMO systems with the frequency domain packet scheduler (FDPS). This work provides a theoretical reference for the future version of the LTE standard and a useful source of information for the practical implementation of the LTE systems.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127899932","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
Partial Joint Processing for Frequency Selective Channels 频率选择信道的部分联合处理
2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594156
T. Lakshmana, C. Botella, T. Svensson, Xiaodong Xu, Jingya Li, Xin Chen
{"title":"Partial Joint Processing for Frequency Selective Channels","authors":"T. Lakshmana, C. Botella, T. Svensson, Xiaodong Xu, Jingya Li, Xin Chen","doi":"10.1109/VETECF.2010.5594156","DOIUrl":"https://doi.org/10.1109/VETECF.2010.5594156","url":null,"abstract":"In this paper, we consider a static cluster of base stations where joint processing is allowed in the downlink. The partial joint processing scheme is a user-centric approach where subclusters or active sets of base stations are dynamically defined for each user in the cluster. In frequency selective channels, the definition of the subclusters or active set thresholding of base stations can be frequency adaptive (per resource block) or non-adaptive (averaged over all the resource blocks). Frequency adaptive thresholding improves the average sum-rate of the cluster, but at the cost of an increased user data interbase information exchange with respect to the non-adaptive frequency thresholding case. On the other hand, the channel state information available at the transmitter side to design the beamforming matrix is very limited and rank deficiency problems arise for low values of active set thresholding and users located close to the base station. To solve this problem, an algorithm is proposed that defines a cooperation area over the cluster where the partial joint processing scheme can be performed, frequency adaptive or non-adaptive, for a given active set threshold value.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125361841","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: 16
Encapsulation Requirements for Return Links and Mesh Systems over Satellite 卫星上返回链路和网格系统的封装要求
2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594095
Fabrice Hobaya, C. Baudoin, E. Dubois, P. Gelard, E. Chaput, A. Beylot, G. Fairhurst
{"title":"Encapsulation Requirements for Return Links and Mesh Systems over Satellite","authors":"Fabrice Hobaya, C. Baudoin, E. Dubois, P. Gelard, E. Chaput, A. Beylot, G. Fairhurst","doi":"10.1109/VETECF.2010.5594095","DOIUrl":"https://doi.org/10.1109/VETECF.2010.5594095","url":null,"abstract":"Initially designed for TV broadcasting, DVB standard families have become mature technologies for Internet communications via satellite access networks. A generic encapsulation protocol is therefore required for the forward link, the return link, and for mesh satellite systems. Moreover, because of the cost and the scarcity of resources, this should be as efficient and light as possible. The GSE (Generic Stream Encapsulation) protocol enables efficient transport of any protocol, originally designed for DVB-S2, that is to say on Quasi Error Free (QEF) forward links of satellite systems. This paper addresses limitations in GSE for the return link context and examines the requirements for an encapsulation mechanism for satellite systems using multiple access. This includes the return link but also mesh satellite systems and any satellite systems that uses multiple access. This paper also analyses approaches to derive requirements and provides a first analysis of these requirements.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126344874","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: 1
On the Energy Consumption of Relay Networks 中继网络能耗研究
2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594366
A. Brandao
{"title":"On the Energy Consumption of Relay Networks","authors":"A. Brandao","doi":"10.1109/VETECF.2010.5594366","DOIUrl":"https://doi.org/10.1109/VETECF.2010.5594366","url":null,"abstract":"This paper compares the amount of net energy used in the transmission segment of a multi-hop wireless relay network versus the single-hop system. It focuses on the computation of the power budget and is valid for half-duplex, full-duplex, downlink and uplink scenarios. The study shows that, contrary to a usual assumption today, the net amount of energy used by the multi-hop system may be higher than that of a single-hop under certain common conditions.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"468 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122182128","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: 1
Two-Dimension Adaptive Spectral Efficiency for SC-FDMA Systems SC-FDMA系统的二维自适应频谱效率
2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594595
Ye Wu, M. Lei, Jun Du
{"title":"Two-Dimension Adaptive Spectral Efficiency for SC-FDMA Systems","authors":"Ye Wu, M. Lei, Jun Du","doi":"10.1109/VETECF.2010.5594595","DOIUrl":"https://doi.org/10.1109/VETECF.2010.5594595","url":null,"abstract":"We propose a two-dimension adaptive spectral efficiency scheme for a new-designed single-carrier frequency division multiple access (SC-FDMA) system by flexible reference signal (RS) and data multiplexing for each user. Based on Doppler spread, each user first determines the number of SC-FDMA symbols that bear RS in a time slot, and each of such SC-FDMA symbols, based on bandwidth allocation, then serves to estimate a shortened time-domain channel impulse response (CIR) as well as bear data. The proposed design significantly outperforms the channel estimation (CE) case of Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) uplink in terms of spectral efficiency at a high Doppler spread.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115966950","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
Cross-Layer Multi-Hopping Scheme for Efficient and Reliable Transmission in Fading Environment 衰落环境下高效可靠传输的跨层多跳方案
2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594490
Y. Yamao, Yutaro Kida, Y. Kadowaki
{"title":"Cross-Layer Multi-Hopping Scheme for Efficient and Reliable Transmission in Fading Environment","authors":"Y. Yamao, Yutaro Kida, Y. Kadowaki","doi":"10.1109/VETECF.2010.5594490","DOIUrl":"https://doi.org/10.1109/VETECF.2010.5594490","url":null,"abstract":"Multi-hop wireless ad hoc networks suffer from temporary link error due to fading. In order to improve packet transmission reliability and achieve efficient transmission in fading environment, this paper proposes an integrated dynamic multi-hopping scheme based on a cross-layer approach and cognitive behavior of local nodes. The scheme provides two important functions, temporary bypassing and dynamic shortcut, to achieve the goals. The proposed MAC protocol avoids their conflict by giving priority to the shortcut path over the bypass and original passes. Moreover, the transmission reliability can be further improved by triple-path diversity. Packet transmission success probability and average transmission delay were analyzed and evaluated for a basic two-hop model. The results show that the proposed scheme can achieve better transmission reliability with reduced transmission delay, compared with previous multi-hop schemes.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123830242","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 Tradeoff Study of Streaming Video among Vehicle 车辆间流媒体视频性能权衡研究
2010 IEEE 72nd Vehicular Technology Conference - Fall Pub Date : 2010-10-04 DOI: 10.1109/VETECF.2010.5594425
F. Lawal, Jun Huang, O. Yang
{"title":"Performance Tradeoff Study of Streaming Video among Vehicle","authors":"F. Lawal, Jun Huang, O. Yang","doi":"10.1109/VETECF.2010.5594425","DOIUrl":"https://doi.org/10.1109/VETECF.2010.5594425","url":null,"abstract":"Video and image communications can assist in highway traffic control, accident avoidance and management as well as road congestion control and coordination. This paper studies video streaming over wireless medium among a cluster of vehicles in an ad-hoc network. Through intense tradeoff study, we investigate the issues encountered in building a robust system that would allow automobiles to effectively transmit multimedia information in an ad-hoc network with constantly changing wireless environments. Based on our OPNET simulation results, we offer some design guidelines for transmitting streaming video over a vehicular adhoc network.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116597238","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: 1
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