发布求助
文献互助 智能选刊 最新文献

2009 International Workshop on Satellite and Space Communications最新文献

筛选
英文 中文
Hybrid Satellite-WiMAX architecture and access design for tropical areas 热带地区混合卫星- wimax体系结构和接入设计
2009 International Workshop on Satellite and Space Communications Pub Date : 2009-10-13 DOI: 10.1109/IWSSC.2009.5286335
J. Radzik, A. Aroumont, M. Bousquet, L. Castanet, N. Jeannin
{"title":"Hybrid Satellite-WiMAX architecture and access design for tropical areas","authors":"J. Radzik, A. Aroumont, M. Bousquet, L. Castanet, N. Jeannin","doi":"10.1109/IWSSC.2009.5286335","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286335","url":null,"abstract":"Tabatinga is a SATNEX initiative aimed at defining and designing a DVB-S2/RCS Wi-MAX system to provide access network services over the Amazonian region of Brazil at Ku band. This paper summarizes the work done on the physical and MAC layer aspects of that system.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124794931","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: 6
PhD session 1 (room A+B) coding and modulation I 博士会议1(房间A+B)编码和调制1
2009 International Workshop on Satellite and Space Communications Pub Date : 2009-10-13 DOI: 10.1109/IWSSC.2009.5286438
F. Cercas
{"title":"PhD session 1 (room A+B) coding and modulation I","authors":"F. Cercas","doi":"10.1109/IWSSC.2009.5286438","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286438","url":null,"abstract":"","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127201103","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
Diversity investigation of satellite backbone network for BFWA systems BFWA系统卫星骨干网分集研究
2009 International Workshop on Satellite and Space Communications Pub Date : 2009-10-13 DOI: 10.1109/IWSSC.2009.5286371
P. Kantor, G. Toth, Árpád Drozdy, J. Bitó
{"title":"Diversity investigation of satellite backbone network for BFWA systems","authors":"P. Kantor, G. Toth, Árpád Drozdy, J. Bitó","doi":"10.1109/IWSSC.2009.5286371","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286371","url":null,"abstract":"The Broadband Fixed Wireless Access (BFWA) networks are terrestrial systems operating at high carrier frequencies (above 20 GHz), therefore one of the most harmful circumstantial factors in these systems is the attenuation caused by precipitation, especially by rain. Employing site diversity is a well-known method to improve the signal to interference plus noise ratio conditions within the BFWA network. The backbone of a BFWA can be wired or wireless terrestrial, however the connection between base stations and the operator's core network can be also established by high frequency satellite links. Applying a satellite backbone system and route diversity between the Earth-space links can compensate precipitation attenuation. In this paper the efficiency of the diversity scheme in a satellite backbone network for BFWA system will be presented.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130213273","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
BSM integrated PEP with cross-layer improvements BSM通过跨层改进集成了PEP
2009 International Workshop on Satellite and Space Communications Pub Date : 2009-10-13 DOI: 10.1109/IWSSC.2009.5286421
H. Cruickshank, R. Mort, G. Giambene, M. Berioli
{"title":"BSM integrated PEP with cross-layer improvements","authors":"H. Cruickshank, R. Mort, G. Giambene, M. Berioli","doi":"10.1109/IWSSC.2009.5286421","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286421","url":null,"abstract":"The future development of broadband satellite systems providing services based on the Internet Protocol (IP) needs to be stimulated by means of common standards. This paper presents the ETSI BSM PEP terminal architecture and PEP usage scenarios. In addition this paper shows the benefits of cross-layer improvements, where the TCP traffic sent by STs through an NCC/Gateway that acts as a PEP-spoofer on ACKs going in the opposite direction.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114083074","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: 4
Selective encryption for efficient and secure transmission of compressed space images 选择性加密，高效和安全的压缩空间图像传输
2009 International Workshop on Satellite and Space Communications Pub Date : 2009-10-13 DOI: 10.1109/IWSSC.2009.5286383
S. Spinsante, E. Gambi
{"title":"Selective encryption for efficient and secure transmission of compressed space images","authors":"S. Spinsante, E. Gambi","doi":"10.1109/IWSSC.2009.5286383","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286383","url":null,"abstract":"The goal of partial encryption of a generic bit stream is to make the entire stream somehow useless for anyone that cannot decrypt its ciphered subset. In this paper we investigate the possibility of applying selective encryption to efficiently protect compressed space image data, during their transmission from payload instruments to Earth receiving stations. As a matter of fact, since many years, secure transmission of space data collected by scientific missions has not been considered necessary; but the trend is rapidly changing, and the availability of robust and efficient solutions to protect data integrity during their transmission may be a valuable asset.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115158873","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
Effect of SNR margin in TCP performance for HSDPA via GEO satellite 基于GEO卫星的HSDPA TCP性能中信噪比裕度的影响
2009 International Workshop on Satellite and Space Communications Pub Date : 2009-10-13 DOI: 10.1109/IWSSC.2009.5286376
Aiyetoro Gbolahan, Takawira Fambirai
{"title":"Effect of SNR margin in TCP performance for HSDPA via GEO satellite","authors":"Aiyetoro Gbolahan, Takawira Fambirai","doi":"10.1109/IWSSC.2009.5286376","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286376","url":null,"abstract":"This paper investigates the effect of the Signal to Noise Ratio (SNR) margin, h, that is used to compensate for the long propagation delay experienced in Satellite High Speed Downlink Packet Access (S-HSDPA) air interface. Satellite Systems are expected to complement the terrestrial access network and work with the same core network. The geostationary bent-pipe satellite has been considered for this work. A cross-layer study of the effect of the physical layer on the performance of TCP based traffic was conducted by varying margin values. A 3-state markov channel model has been used for this work. Our aim is to investigate the impact of the margin on TCP performance and recommend the optimal margin for this channel model. We also investigate if the TCP performance for varying margins will remain consistent for different environment and TCP versions.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132734450","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
MedNET: Telemedicine over AmerHis system MedNET:通过AmerHis系统进行远程医疗
2009 International Workshop on Satellite and Space Communications Pub Date : 2009-10-13 DOI: 10.1109/IWSSC.2009.5286429
A. Solano, A. Salas, Juan Manuel Rodríguez, D. Rizou, Cristina Arias
{"title":"MedNET: Telemedicine over AmerHis system","authors":"A. Solano, A. Salas, Juan Manuel Rodríguez, D. Rizou, Cristina Arias","doi":"10.1109/IWSSC.2009.5286429","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286429","url":null,"abstract":"This paper presents MEDNET's EC FP7 project telemedicine network solution and its validation performed during the integration and validation phase. This network solution runs over AmerHis broadband satellite multimedia commercial system, embarked over AMAZONAS1 satellite and owned by HISPASAT. During the integration and validation phase of the telemedicine network solution, different medical applications have been merged into a telemedicine solution that has been validated over AmerHis In-Factory test-bed. The testbed replicates the core network architecture that will be deployed in the Brazilian and Peruvian sites involved in MedNET. It also satisfies the TeleMedicine requirements of the project. The results are valuable inputs to the ongoing field installation phase.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133389356","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
Evaluation of dynamic DTN routing protocols in space environment 空间环境下动态DTN路由协议的评价
2009 International Workshop on Satellite and Space Communications Pub Date : 2009-10-13 DOI: 10.1109/IWSSC.2009.5286392
Ioannis Komnios, Sotirios Diamantopoulos, V. Tsaoussidis
{"title":"Evaluation of dynamic DTN routing protocols in space environment","authors":"Ioannis Komnios, Sotirios Diamantopoulos, V. Tsaoussidis","doi":"10.1109/IWSSC.2009.5286392","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286392","url":null,"abstract":"As the number of space elements increases, routing becomes an issue of great interest. The majority of routing schemes that have been proposed till now, employ a fairly static design and, only recently, more sophisticated protocols have been introduced. In this study, we evaluate some of the most prominent routing protocols for Delay-Tolerant Networks, Epidemic, PRoPHET and Contact Graph Routing, in space environment. Using COMNET Lab's DTN testbed, we show that for increasing delay, Contact Graph Routing significantly outperforms the other two routing schemes.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130862517","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: 11
Network of mobile networks; Hybrid terrestrial-satellite radio 移动网络中的网络;地面-卫星混合无线电
2009 International Workshop on Satellite and Space Communications Pub Date : 2009-10-13 DOI: 10.1109/IWSSC.2009.5286308
B. Vojcic, D. Matheson, H. Clark
{"title":"Network of mobile networks; Hybrid terrestrial-satellite radio","authors":"B. Vojcic, D. Matheson, H. Clark","doi":"10.1109/IWSSC.2009.5286308","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286308","url":null,"abstract":"This paper describes a complex hybrid terrestrial-satellite mobile network which includes both Satellite Based Network (SBN) and Ancillary Terrestrial Component (ATC) components that are integrated via a single logical standards-based core network based on 3GPP and 3GPP2 network entities. Next generation session controls are implemented across its all-IP core and transport network via an IMS Core utilizing SIP signaling. Two satellite air-interfaces, GMR1-3G and satellite HRPD (sHRPD), operating over a GEO satellite are described and their main and advanced features and performance are reviewed.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122829746","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: 10
Cross-layer study for resource management in DVB-S2 with mobile users 具有移动用户的DVB-S2资源管理跨层研究
2009 International Workshop on Satellite and Space Communications Pub Date : 2009-10-13 DOI: 10.1109/IWSSC.2009.5286370
G. Fairhurst, G. Giambene, S. Giannetti, C. P. Niebla, A. Sali
{"title":"Cross-layer study for resource management in DVB-S2 with mobile users","authors":"G. Fairhurst, G. Giambene, S. Giannetti, C. P. Niebla, A. Sali","doi":"10.1109/IWSSC.2009.5286370","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286370","url":null,"abstract":"Recently there has been a renewed interest on mobile communications via satellite. Therefore, the DVB-S2/-RCS standard has been updated with some countermeasures to combat fading effects of the mobile scenario. The focus of this paper is on multimedia traffic management on the DVB-S2 forward link to collective terminals on trains. In our study, we consider ACM, PHY margins, and LL-FEC coding to counteract the time-varying propagation conditions in Ku-band that are very critical for the railway scenario. A multi-layer optimization study is performed in order to maximize TCP goodput by jointly tuning LL-FEC coding and the PHY layer margin. It is shown how, using appropriate parameters, LL-FEC coding can improve the performance of the system. Moreover, the performance of the proposed UBMT scheduler is evaluated in managing CBR and FTP traffic flows. This study has permitted to determine the maximum capacity of CBR flows (guaranteeing a given quality of service level) in the presence of FTP flows.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124062001","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: 4
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：604180095
Book学术官方微信