2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)最新文献_第6页

On acquisition and tracking methods for SC-FDMA over satellite 卫星上SC-FDMA的捕获与跟踪方法研究

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-09-08 DOI: 10.1109/ASMS-SPSC.2014.6934567

D. Benfatto, N. Privitera, R. Suffritti, A. Awoseyila, B. Evans, S. Dimitrov

引用次数: 5

A greedy approach combined with graph coloring for non-uniform beam layouts under antenna constraints in multibeam satellite systems 多波束卫星系统天线约束下非均匀波束布局的贪心与图着色方法

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-09-01 DOI: 10.1109/ASMS-SPSC.2014.6934570

Jean-Thomas Camino, S. Mourgues, C. Artigues, L. Houssin

{"title":"A greedy approach combined with graph coloring for non-uniform beam layouts under antenna constraints in multibeam satellite systems","authors":"Jean-Thomas Camino, S. Mourgues, C. Artigues, L. Houssin","doi":"10.1109/ASMS-SPSC.2014.6934570","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934570","url":null,"abstract":"Because of the ever-increasing traffic and quality demands for both internet and television, satellite systems must aim at designs that use the satellite resources in the most efficient way possible. In the case of multibeam satellite systems, this is achieved by making optimal use of the plurality of beams in terms of frequency reuse, power allocation, and quality of the layout. That last point is the one addressed in this paper, the optimisation of the beam layout being a complex but crucial task for the resulting telecommunication system since it directly affects its performances and cost. In the case of broadband systems, the key data is the repartition of the traffic demand over the zone to be covered which is never rigorously uniform. Though, it is common for satellite system design tools to rely on this fairly unrealistic assumption to provide regular coverage which is therefore often suboptimal : inappropriate beamwidths, over-provisioned or unsatisfied user stations, unprofitable beams. Nonetheless, one strong advantage of the regular scheme is that it is known to be compatible with the single feed per beam antenna constraint of minimum angular distance for all the couples of beams coming from the same reflector. The aim of this paper is to present a randomized multi-start heuristic to build a non-uniform layout, driven by the different telecommunication mission criteria and by the aforementioned antenna constraint that is dealt with by a graph recoloring procedure via local search and simulated annealing.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126628577","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: 18

Novel spread spectrum approach to multi-port amplifier calibration 多端口放大器扩频校准的新方法

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-09-01 DOI: 10.1109/ASMS-SPSC.2014.6934566

A. Pera, Ian Morris, G. Thomas, P. James, Nigel Wheatley, P. Jung

引用次数: 1

Satellite's role in the penetration of broadband connectivity within the European Union 卫星在欧盟内部宽带连接渗透中的作用

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-09-01 DOI: 10.1109/ASMS-SPSC.2014.6934560

S. Agnelli, P. Feltz, P. Griffiths, D. Roth

引用次数: 9

Balancing closed and open loop CSI in mobile satellite link adaptation 移动卫星链路自适应中开闭环CSI的平衡

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-09-01 DOI: 10.1109/ASMS-SPSC.2014.6934548

Alberto Rico-Alvariño, Jesús Arnau, C. Mosquera

引用次数: 6

Analysis and modeling of the cloud impairments of satellite-to-land mobile channel at Ku and Ka bands Ku和Ka波段星地移动信道云损伤分析与建模

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-09-01 DOI: 10.1109/ASMS-SPSC.2014.6934579

A. Al-Saegh, A. Sali, A. Ismail, J. S. Mandeep

{"title":"Analysis and modeling of the cloud impairments of satellite-to-land mobile channel at Ku and Ka bands","authors":"A. Al-Saegh, A. Sali, A. Ismail, J. S. Mandeep","doi":"10.1109/ASMS-SPSC.2014.6934579","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934579","url":null,"abstract":"Cloud impairments have significant effect on signal propagated in the satellite to land stationary terminals channel at frequencies above 10 GHz. With the recent satellite to land mobile terminals network technologies and services that use these frequencies, there is a lack of channel impairments modeling and analysis for such type of link. This study presents a reliable channel model of satellite-to-land mobile terminals that consider dynamic cloudy weather impairments. The cloud's dynamic parameters and their effect on the Rician factor are modeled. The model involves modules that design multipath signals, direct clear line-of-sight (LOS) normalized signals, and cloud impairments. Results show that a considerable change occurs in the performance of the signal propagated through the cloud. The change appears as deviations in the fade depth and the variance of the propagated signal in the link between the satellite and the land mobile terminals. The channel model is a realistic approach to the link characteristics, which satellite systems designers should consider when designing high data rate satellite systems.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114604910","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

Review of terabit/s satellite, the next generation of HTS systems 太比特/秒卫星，下一代高温超导系统的回顾

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-09-01 DOI: 10.1109/ASMS-SPSC.2014.6934562

P. Inigo, O. Vidal, B. Roy, E. Alberty, N. Metzger, D. Galinier, Javad Anzalchi, G. Huggins, S. Stirland

引用次数: 22

Interference statistical distribution for cognitive satellite communication systems operating above 10GHz 10GHz以上认知卫星通信系统的干扰统计分布

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-09-01 DOI: 10.1109/ASMS-SPSC.2014.6934552

C. Kourogiorgas, A. Panagopoulos

引用次数: 4

Frame based precoding in satellite communications: A multicast approach 卫星通信中基于帧的预编码:一种多播方法

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-06-26 DOI: 10.1109/ASMS-SPSC.2014.6934558

Dimitrios Christopoulos, S. Chatzinotas, B. Ottersten

{"title":"Frame based precoding in satellite communications: A multicast approach","authors":"Dimitrios Christopoulos, S. Chatzinotas, B. Ottersten","doi":"10.1109/ASMS-SPSC.2014.6934558","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934558","url":null,"abstract":"In the present work, a multibeam satellite that employs aggressive frequency reuse towards increasing the offered throughput is considered. Focusing on the forward link, the goal is to employ multi-antenna signal processing techniques, namely linear precoding, to manage the inter-beam interferences. In this context, fundamental practical limitations, namely the rigid framing structure of satellite communication standards and the on-board per-antenna power constraints, are herein considered. Therefore, the concept of optimal frame based precoding under per-antenna constraints, is discussed. This consists in precoding the transmit signals without changing the underlying framing structure of the communication standard. In the present work, the connection of the frame based precoding problem with the generic signal processing problem of conveying independent sets of common data to distinct groups of users is established. This model is known as physical layer multicasting to multiple co-channel groups. Building on recent results, the weighted fair per-antenna power constrained multigroup multicast precoders are employed for frame based precoding. The throughput performance of these solutions is compared to multicast aware heuristic precoding methods over a realistic multibeam satellite scenario. Consequently, the gains of the proposed approach are quantified via extensive numerical results.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116731420","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

Improved channel estimation for interference cancellation in random access methods for satellite communications 卫星通信随机接入方法中干扰消除的改进信道估计

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-03-27 DOI: 10.1109/ASMS-SPSC.2014.6934526

K. Zidane, J. Lacan, M. Boucheret, C. Poulliat

引用次数: 10