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2006 International Workshop on Satellite and Space Communications最新文献

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Internet by satellite: a flexible processor with Radio Burst Switching 卫星互联网:具有无线电突发交换的灵活处理器
2006 International Workshop on Satellite and Space Communications Pub Date : 2006-12-11 DOI: 10.1109/IWSSC.2006.255991
C. Haardt, N. Courville
{"title":"Internet by satellite: a flexible processor with Radio Burst Switching","authors":"C. Haardt, N. Courville","doi":"10.1109/IWSSC.2006.255991","DOIUrl":"https://doi.org/10.1109/IWSSC.2006.255991","url":null,"abstract":"This article introduces a new switching approach, offering to satellite operators a wide flexibility for bandwidth, waveform, quality of service and service assignment, even during flight. Inherited from the optical domain, the prime mission of radio burst switching (RBS) is to provide efficiently circuit and packet switching solutions between a high number of spot beams. Uncertain market direction and speed of adaptation will also favor such agile technologies. RBS idea intrinsically minimizes the processing section dedicated to the regeneration of header, while the bulk of traffic bursts travels transparently without on-board processing. This concept also widely simplifies the terminal characteristics. The related techniques have been studied and simulated in the frame of the ULISS project. At the horizon 2010, the on board processor feasibility will be enabled thanks to ASIC technology improvements, to integrated multi gigabit transceivers and to system on chip processing architecture","PeriodicalId":335831,"journal":{"name":"2006 International Workshop on Satellite and Space Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115703868","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
Application-Layer Techniques for Data Communications over Deep Space Networks 深空网络数据通信的应用层技术
2006 International Workshop on Satellite and Space Communications Pub Date : 2006-12-11 DOI: 10.1109/IWSSC.2006.256026
T. de Cola, H. Ernst, M. Marchese
{"title":"Application-Layer Techniques for Data Communications over Deep Space Networks","authors":"T. de Cola, H. Ernst, M. Marchese","doi":"10.1109/IWSSC.2006.256026","DOIUrl":"https://doi.org/10.1109/IWSSC.2006.256026","url":null,"abstract":"The hazardous operative conditions experienced by deep space environments (very large latencies and frequent link disconnections) make the use of TCP-based transmission schemes inefficient. On the contrary, the use of erasure coding schemes and more appropriate automatic repeat request (ARQ) schemes, available within the packet layer coding-based and the consultative committee for space data systems (CCSDS) protocol architectures respectively, assure better performance results. In this paper, the adoption of erasure codes within CCSDS protocol stack is considered and its effectiveness is evaluated with respect to ARQ-based transmission schemes available within the CCSDS file delivery protocol","PeriodicalId":335831,"journal":{"name":"2006 International Workshop on Satellite and Space Communications","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123124693","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
TCP Hybla Performance in GEO Satellite Networks: Simulations and Testbed 地球同步轨道卫星网络中TCP Hybla性能:仿真与实验平台
2006 International Workshop on Satellite and Space Communications Pub Date : 2006-12-11 DOI: 10.1109/IWSSC.2006.255987
C. Caini, Nico Candio Liberatot, R. Firrincieli, Giovanni Giambenet
{"title":"TCP Hybla Performance in GEO Satellite Networks: Simulations and Testbed","authors":"C. Caini, Nico Candio Liberatot, R. Firrincieli, Giovanni Giambenet","doi":"10.1109/IWSSC.2006.255987","DOIUrl":"https://doi.org/10.1109/IWSSC.2006.255987","url":null,"abstract":"TCP connections that incorporate satellite links are greatly disadvantaged with respect to entirely wired connections, because of their longer round trip times (RTTs). TCP Hybla has been conceived with the primary aim to solve this problem, therefore it appears quite promising in geostationary (GEO) satellite environments, where the long propagation time greatly affects the RTT. In order to compare TCP Hybla with TCP NewReno, SACK and Westwood in the satellite environment, we have reproduced suitable scenarios based on a GEO bent-pipe satellite by means of both the ns2 simulator and a Linux-based testbed developed at University of Bologna. The obtained results show that TCP Hybla allows a better efficiency in utilizing the available satellite bandwidth, especially for high packet error rates and/or high satellite bandwidth values. This work has been carried out within the European-funded network of excellence SatNEx II (contract No. IST-027393)","PeriodicalId":335831,"journal":{"name":"2006 International Workshop on Satellite and Space Communications","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116682907","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: 9
A Galileo receiver in High Dynamic Scenario: the PICPOT 2 project 高动态场景下的伽利略接收机:PICPOT 2项目
2006 International Workshop on Satellite and Space Communications Pub Date : 2006-12-11 DOI: 10.1109/IWSSC.2006.256014
G. Pagana, N. Antonietti, R. Yudanto
{"title":"A Galileo receiver in High Dynamic Scenario: the PICPOT 2 project","authors":"G. Pagana, N. Antonietti, R. Yudanto","doi":"10.1109/IWSSC.2006.256014","DOIUrl":"https://doi.org/10.1109/IWSSC.2006.256014","url":null,"abstract":"The purpose of the proposed work is the presentation on the preliminary study and definition of a Galileo SW receiver for space applications compatible with high dynamics (HD) scenarios focusing on differences between terrestrial and space environments. Solutions have been proposed to solve the criticities due to Galileo weak points in space environment, and a promising approach to fasten code acquisition time has been proposed","PeriodicalId":335831,"journal":{"name":"2006 International Workshop on Satellite and Space Communications","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114431802","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
Information Outage Probability of Orthogonal Space-Time Block Codes over Hoyt Distributed Fading Channels 正交空时分组码在Hoyt分布衰落信道上的信息中断概率
2006 International Workshop on Satellite and Space Communications Pub Date : 2006-12-11 DOI: 10.1109/IWSSC.2006.256009
G. Ropokis, A. Rontogiannis, P. Mathiopoulos
{"title":"Information Outage Probability of Orthogonal Space-Time Block Codes over Hoyt Distributed Fading Channels","authors":"G. Ropokis, A. Rontogiannis, P. Mathiopoulos","doi":"10.1109/IWSSC.2006.256009","DOIUrl":"https://doi.org/10.1109/IWSSC.2006.256009","url":null,"abstract":"In this paper the information outage probability (IOP) of orthogonal space-time block coded multiple-input multiple-output (MIMO) systems operating over Hoyt distributed fading channels is investigated. In our analysis, we consider two separate fading cases. For independent identically distributed (i.i.d.) fading channels, exact closed-form expressions of the IOP are derived. For non-identically Hoyt distributed fading, we express the problem in a different equivalent form, and propose the use of the saddlepoint method to approximate the IOP. As verified by extensive computer simulations, the saddlepoint approximation method provides very accurate results, making it an approach that could potentially be applied in performance evaluation of wireless communication systems","PeriodicalId":335831,"journal":{"name":"2006 International Workshop on Satellite and Space Communications","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114415599","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
Convergent-reconstruction-based Inter-Layer Inter-Satellite Links Establishment Strategies for Two-tier LEO/MEO Satellite Networks 基于收敛重构的两层LEO/MEO卫星网络层间链路建立策略
2006 International Workshop on Satellite and Space Communications Pub Date : 2006-12-11 DOI: 10.1109/IWSSC.2006.256038
Tingyong Wu, Jianhao Hu, Shiqi Wu
{"title":"Convergent-reconstruction-based Inter-Layer Inter-Satellite Links Establishment Strategies for Two-tier LEO/MEO Satellite Networks","authors":"Tingyong Wu, Jianhao Hu, Shiqi Wu","doi":"10.1109/IWSSC.2006.256038","DOIUrl":"https://doi.org/10.1109/IWSSC.2006.256038","url":null,"abstract":"In two-tier LEO/MEO satellite networks, reconstruction of any inter-layer inter-satellite links (ILISLs) may cause the reconfiguration of the whole network topology. Hence, the time variability of the two-tier satellite network topology will be aggravated. In this paper, two novel convergent-reconstruction-based ILISL establishment strategies are proposed. The proposed strategies can reduce the number of network topology reconfigurations and improve the topological stability of the LEO/MEO two-tier satellite networks by forcing all ILISLs to reconstruct at the same time instant. Simulation results prove the validity of the proposed strategies and show that the topological stability of the two-tier LEO/MEO satellite networks can be improved with acceptable cost","PeriodicalId":335831,"journal":{"name":"2006 International Workshop on Satellite and Space Communications","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127098835","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
QoS Support on DVB-S2/RCS: IP-friendly Cross-Layer Approaches DVB-S2/RCS上的QoS支持:ip友好的跨层方法
2006 International Workshop on Satellite and Space Communications Pub Date : 2006-12-11 DOI: 10.1109/IWSSC.2006.256042
M. Angeles, V. Castro
{"title":"QoS Support on DVB-S2/RCS: IP-friendly Cross-Layer Approaches","authors":"M. Angeles, V. Castro","doi":"10.1109/IWSSC.2006.256042","DOIUrl":"https://doi.org/10.1109/IWSSC.2006.256042","url":null,"abstract":"This tutorial focuses on the design of an interactive multibeam broadband satellite (MBS) system with QoS support. A DVB-S2/RCS transparent architecture and fixed terminals using adaptive physical layer will be considered. DVB-S2 transmission power and symbol rate are assumed to be constant, and hence ACM (adaptive coding and modulation) yields a bit rate that is time and space dependant according to the channel conditions. DVB-RCS transmission power is assumed to be constant and DRA (dynamic rate adaptation) along with AC (adaptive coding) yield both bit and symbol rate time and space dependant. During the tutorial, a number of cross-layer mechanisms will be introduced whereby the physical, the medium access control (MAC) and the IP layers share knowledge of the channel dynamics in presence of ACM. The cross-layer design approach allows further improvements on packet data admission, scheduling and policing to maximize both capacity and user satisfaction while meeting QoS constraints","PeriodicalId":335831,"journal":{"name":"2006 International Workshop on Satellite and Space Communications","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116632095","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
Polarization Diversity Tripole Adaptive Array with Minimum Bit Error Rate Approach 最小误码率极化分集三极自适应阵列方法
2006 International Workshop on Satellite and Space Communications Pub Date : 2006-12-11 DOI: 10.1109/IWSSC.2006.256008
Y. Ravinder, V. Pandharipande
{"title":"Polarization Diversity Tripole Adaptive Array with Minimum Bit Error Rate Approach","authors":"Y. Ravinder, V. Pandharipande","doi":"10.1109/IWSSC.2006.256008","DOIUrl":"https://doi.org/10.1109/IWSSC.2006.256008","url":null,"abstract":"A polarization diversity adaptive antenna array using a tripole array is presented in this paper. Tripole array constitutes three mutually perpendicular dipoles all with their centers at the same location. This antenna adapts to desired user polarization as well as angle of arrival. It minimizes bit error rate (BER) better through polarization diversity when desired user and other interfering users arrive from the same direction or are very close to the desired user direction but with different polarizations. Simulation results show that the array, with minimum bit error rate approach, provides significant performance gain in terms of smaller BER over standard minimum mean square error (MMSE) approach. This array can be used for polarization diversity along with spatial diversity","PeriodicalId":335831,"journal":{"name":"2006 International Workshop on Satellite and Space Communications","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128036928","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
Frequency-Hopping Techniques for Secure Satellite TT&C: System Analysis & Trade-Offs 安全卫星测控的跳频技术:系统分析与权衡
2006 International Workshop on Satellite and Space Communications Pub Date : 2006-12-11 DOI: 10.1109/IWSSC.2006.255980
L. Simone, N. Salerno, M. Maffei
{"title":"Frequency-Hopping Techniques for Secure Satellite TT&C: System Analysis & Trade-Offs","authors":"L. Simone, N. Salerno, M. Maffei","doi":"10.1109/IWSSC.2006.255980","DOIUrl":"https://doi.org/10.1109/IWSSC.2006.255980","url":null,"abstract":"Near future on-board telemetry, tracking and command (TT&C) equipment for secure communications will likely adopt frequency hopping (FH) instead of direct sequence (DS) spread spectrum (SS) techniques. As far as TT&C systems will have to cope with jammer-to-signal power ratios higher than 50 dB, classical DS approaches must be abandoned in favour of more robust FH solutions. In the following paper we present an overview of synchronization, channel coding and modulation issues for next generation anti-jamming TT&C transponder under study and design at Alcatel Alenia Space-Italy (AAS-I)","PeriodicalId":335831,"journal":{"name":"2006 International Workshop on Satellite and Space Communications","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130378608","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
Broadband systems based on DVB-S2 and mobile DVB-RCS, and their future applications to broadband mobiles 基于DVB-S2和移动DVB-RCS的宽带系统及其在宽带手机上的应用前景
2006 International Workshop on Satellite and Space Communications Pub Date : 2006-12-11 DOI: 10.1109/IWSSC.2006.256000
H.-J. Lee, P. Kim, T. Kim, D. Oh
{"title":"Broadband systems based on DVB-S2 and mobile DVB-RCS, and their future applications to broadband mobiles","authors":"H.-J. Lee, P. Kim, T. Kim, D. Oh","doi":"10.1109/IWSSC.2006.256000","DOIUrl":"https://doi.org/10.1109/IWSSC.2006.256000","url":null,"abstract":"In this paper, the design and implementation of broadband adaptive satellite communications and broadcasting convergence technology (BcSAT) system and a mobile broadband interactive satellite access technology (MoBISAT) system, are presented. The BcSAT system aims at providing the next generation satellite broadcasting service through Ka-band based on DVB-S2 standard. And, the MoBISAT system, which is a mobile broadband satellite access system, provides Ku-band satellite TV and Ka-band high speed internet based on DVB-S/DVB-RCS standards to the passengers and crews for land, maritime and aeronautical vehicles. Therefore, this paper addresses the main design features and implementation for the BcSAT and MoBISAT system, respectively","PeriodicalId":335831,"journal":{"name":"2006 International Workshop on Satellite and Space Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129231292","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
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