2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)最新文献_第4页

Gateway handover implications on transport layer performance in Terabit satellite networks 网关切换对太比特卫星网络传输层性能的影响

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-10-23 DOI: 10.1109/ASMS-SPSC.2014.6934517

G. Giambene, D. Luong, Van Anh Le, Tomaso de Cola

引用次数: 4

LTE backhauling over MEO-satellites 在meo卫星上进行LTE回传

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-10-23 DOI: 10.1109/ASMS-SPSC.2014.6934541

M. Breiling, Waqar Zia, Yago Sánchez de la Fuente, V. Mignone, D. Milanesio, Yueming Fan, M. Guta

引用次数: 10

Architecture for satellite services over cryptographically heterogeneous networks with application into smart grid 基于加密异构网络的卫星服务体系结构及其在智能电网中的应用

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-10-23 DOI: 10.1109/ASMS-SPSC.2014.6934575

V. H. Tafreshi, H. Cruickshank, Zhili Sun

{"title":"Architecture for satellite services over cryptographically heterogeneous networks with application into smart grid","authors":"V. H. Tafreshi, H. Cruickshank, Zhili Sun","doi":"10.1109/ASMS-SPSC.2014.6934575","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934575","url":null,"abstract":"The rapid growth in the demand for Future Internet services with many emerging group applications has driven the development of satellite, which is the preferred delivery mechanism due to its wide area coverage, multicasting capability and speed to deliver affordable future services. Nevertheless, security has been one of the obstacles for both satellite services as well as smart grid group applications, especially with logical/geographical/cryptographic domains spanning heterogeneous networks and regions. In this paper, adaptive security architecture is implemented to protect satellite services for smart grid group applications. The focus is on key management and policy provisioning. Leveraging Group Domain of Interpretation (GDOI) as the standard for smart grid centralized key/policy management architecture, a single Domain of Interpretation (DOI) is deployed and evaluated critically in terms of the added protocol signaling overhead on the satellite system for a fixed-network scenario. This also partially realizes the growing trend towards the use of TCP/IP technology for smart grid applications.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131374906","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

Gateway diversity for Q/V feeder links: Requirements, characteristics, and challenges Q/V馈线链路的网关分集:要求、特点和挑战

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-10-23 DOI: 10.1109/ASMS-SPSC.2014.6934563

A. Kyrgiazos, B. Evans

引用次数: 8

Reference scenarios for the deployment of emergency communications for earthquakes and mass transport accidents 针对地震和大规模交通事故部署应急通信的参考情景

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-10-23 DOI: 10.1109/ASMS-SPSC.2014.6934553

H. Cruickshank, E. Bovim, A. Donner, J. Seseña, R. Mort

{"title":"Reference scenarios for the deployment of emergency communications for earthquakes and mass transport accidents","authors":"H. Cruickshank, E. Bovim, A. Donner, J. Seseña, R. Mort","doi":"10.1109/ASMS-SPSC.2014.6934553","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934553","url":null,"abstract":"Voice-based Private Mobile Radio (PMR) networks are currently the state-of-the-art for coordination of disaster response works. The increasing availability of digital data on one hand and the advantages of IT-based command and control systems on the other, create a need for data networks between the incident area and back office command and control structures. During major incidents, commercial public networks might be damaged or overloaded, and current digital PMR networks do not support data rates beyond several kbit/s. Satellite communication can play an important role to complement existing terrestrial networks because of their inherent independence from terrestrial infrastructures, wide coverage and multicast capacity. However, in order to devise the best solution, it is important to capture and model user operating modes, communication needs as well as the topological characteristics of user deployment and motion. These findings are synthesised in what is called a “scenario”. This paper describes the current work within the ETSI STF472 in the SatEC working group on small to large scale emergency scenarios. A general overview of rescue response roles is also described together with communication network requirements and flows. Future work will focus on producing more detailed satellite network requirements and network topological models showing how entities involved and their roles are deployed during the incident response.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132149721","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

Linear precoding in multibeam satellite under licensed shared access 许可共享访问下多波束卫星的线性预编码

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-10-23 DOI: 10.1109/ASMS-SPSC.2014.6934561

M. Vázquez, A. Pérez-Neira, M. Lagunas

{"title":"Linear precoding in multibeam satellite under licensed shared access","authors":"M. Vázquez, A. Pérez-Neira, M. Lagunas","doi":"10.1109/ASMS-SPSC.2014.6934561","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934561","url":null,"abstract":"Due to the scarcity of the spectrum, there is a current tendency to offer novel shared access licenses in order to increase the overall spectral efficiency. Under this context, license shared access (LSA) has appeared as an alternative to the exclusive license and license-exempt mechanisms, which so far have dominated the wireless communications. LSA provides shared access to a given set of users under certain conditions which must be optimized in order to foster the shared use of the spectrum, while maintaining certain restrictions on the generated interference. In this paper we consider a LSA system where both satellite and terrestrial wireless service providers share a given frequency band. Basically, the constraints in the LSA scenario reduce to the control of the received signal power within the coverage area. We focus on the precoding scheme in multi-beam satellite systems restricting the received power of the satellite user terminals to be under certain threshold. The objective is that the terrestrial wireless service provider observes the satellite signal power strength under a certain value, providing a peaceful coexistence between both services. Two traditional linear precoding techniques are properly modified in order to satisfy the receiver power constraints. The optimum precoder results to be zero forcing (ZF), in terms of maximum achievable sum-rate, nevertheless the so-called minimum mean square error (MMSE) exhibits better power efficiency than the ZF, in terms of bps/Hz unit power used at the transmitter.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127003072","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

A study on TCP error recovery interaction with Random Access satellite schemes TCP错误恢复与卫星随机接入方案的交互研究

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-10-23 DOI: 10.1109/ASMS-SPSC.2014.6934574

Manlio Bacco, A. Gotta, C. Roseti, F. Zampognaro

{"title":"A study on TCP error recovery interaction with Random Access satellite schemes","authors":"Manlio Bacco, A. Gotta, C. Roseti, F. Zampognaro","doi":"10.1109/ASMS-SPSC.2014.6934574","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934574","url":null,"abstract":"Random Access (RA) techniques have been included in the novel DVB-RCS2 standard due to an expected efficiency in addressing SCADA and M2M traffic. Such traffic relies on intermittent sources sending short messages on a periodic time scale. Efficiency is usually assessed in terms of layer-2 packet loss rate without taking into account indirect effects on upper layer protocols. In particular, TCP assumes packet losses as a congestion indication triggering actions aimed to reduce actual transmission rate. As a consequence, TCP over RA can be impaired by some cross-effects, which deteriorate the performance as experienced by the applications, in terms of Round Trip Time (RTT) and overall throughput. The scope of this paper is to analyze such dynamics, by applying a top-down approach, which includes TCP parameters tuning in the scenario configuration. To this aim, an NS2 module has been developed to simulate different flavors of random access techniques for GEO satellite channels integrated with sensor data sources, which produce intermittent messages and send them over TCP connections. Achieved results provide a first set of considerations on the best protocol stack configuration according to TCP traffic load.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115342121","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: 19

Advanced array signal processing algorithms for DoA estimation of satellites and launchers 卫星和发射器方位估计的先进阵列信号处理算法

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-10-23 DOI: 10.1109/ASMS-SPSC.2014.6934527

Alberto Antón, Isabel Garcia-Rojo, Alejandro Girón, Eva Morales

引用次数: 2

Dust & sand (DUSA) storms impact on LEO satellite microwave radio links 沙尘(DUSA)风暴对LEO卫星微波无线电链路的影响

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-10-23 DOI: 10.1109/ASMS-SPSC.2014.6934580

K. Harb, Said Abdillah, S. Abdul-Jauwad

{"title":"Dust & sand (DUSA) storms impact on LEO satellite microwave radio links","authors":"K. Harb, Said Abdillah, S. Abdul-Jauwad","doi":"10.1109/ASMS-SPSC.2014.6934580","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934580","url":null,"abstract":"Satellite telecommunications today present one of the most remarkable opportunities as they enable us to communicate and virtually reach any corner of the world. Great discoveries and developments in this field have enabled us to improve our quality of life. But even as we benefit from this progress, many challenges are encountered as satellite service providers uphold certain quality of service (QoS) levels. Meteorological impairments will always confront the satellite telecommunication links. Arid and semi-arid regions are particularly prone to dust and sand (DUSA) storms posing a looming threat to microwave radio systems reliability. A novel approach to model the dust storms in a three dimensional space has been presented and elaborated here leading to a more efficient attenuation computation and ultimately resulting in perfection of link budget design. A real downlink improvement for a LEO satellite will be re-designed by considering the dust attenuation parameter. An interesting finding is then confirmed that after including the dust attenuation parameter the link margin is found to be in healthy acceptable range and cost effective too. In order to have an efficient communication system and better quality of service (QoS), designers need to consider all the parameters that can impact communication link.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116086217","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

Business interoperability framework for integrated terrestrial-satellite network 地面卫星综合网络业务互操作性框架

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-10-23 DOI: 10.1109/ASMS-SPSC.2014.6934530

Osianoh Glenn Aliu, S. Watts, Adam Kapvotivs

引用次数: 0