2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)最新文献_第3页

5G resilient backhaul using integrated satellite networks 使用综合卫星网络的5G弹性回程

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.2014.6934532

S. Watts, Osianoh Glenn Aliu

引用次数: 20

Performance assessment of the Smart mAritime saTellite terminal for mUltimedia seRvices and conteNts (SATURN) system 多媒体服务和内容智能海事卫星终端(SATURN)系统的性能评估

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.2014.6934535

A. Baroni, A. Michel, M. Pannozzo, D. Zamberlan, M. Andrenacci, Francesco Silvestri

引用次数: 3

Robust modem design for satellite communications in emergency scenarios 用于紧急情况下卫星通信的稳健调制解调器设计

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.2014.6934536

E. D. Re, A. Fanfani, S. Morosi, L. Ronga

引用次数: 2

An energy-efficient solution for packet-based transmissions with QoS constraints in the multibeam satellite downlink 多波束卫星下行链路中具有QoS约束的基于分组传输的节能解决方案

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.2014.6934572

R. Andreotti, F. Giannetti, M. Luise

{"title":"An energy-efficient solution for packet-based transmissions with QoS constraints in the multibeam satellite downlink","authors":"R. Andreotti, F. Giannetti, M. Luise","doi":"10.1109/ASMS-SPSC.2014.6934572","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934572","url":null,"abstract":"This paper tackles the issue of boosting the capacity of xDSL networks in the presence of geographical gaps. An effective approach for such a kind of operating scenarios consists in exploiting the downlink of either legacy broadcast or advanced multibeam satellites for the delivering of packed-based traffic. This can be done by resorting to the data link layer protocol named Generic Stream Encapsulation which enables the transport of IP traffic (or any other packet oriented protocol) over the DVB-S2 uni-directional physical layer link. The solution presented in this paper consists first in the derivation of an adaptive coding and modulation (ACM) scheme for such an IP over DVB-S2 system, aimed at maximizing the “goodput” (GP), i.e., the offered layer-3 data rate, net of encapsulation overhead. To this aim, the look-up table for ACM is numerically derived by associating to any signal-to-noise-plus-interference ratio of the satellite downlink, the pair “modulation order/coding rate” yielding the highest value of GP. Then, in case of multibeam coverage, in order to manage the co-channel interference arising from beams exploiting the same band, an adaptive power control is also proposed. The goal of the latter is to maximize the energy-efficiency of the downlink satellite transmission while guaranteeing a given quality-of-service over each link in terms of minimum-GP constraint.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"25 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":"124051987","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

A novel approach for symbol timing estimation based on the extended zero-crossing property 一种基于扩展过零特性的符号时间估计新方法

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.2014.6934524

W. Gappmair, S. Cioni, G. Corazza, O. Koudelka

{"title":"A novel approach for symbol timing estimation based on the extended zero-crossing property","authors":"W. Gappmair, S. Cioni, G. Corazza, O. Koudelka","doi":"10.1109/ASMS-SPSC.2014.6934524","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934524","url":null,"abstract":"Carrier- and data-blind recovery of the symbol timing is of paramount importance in digital receivers, i.e., detailed knowledge about carrier frequency and phase or any pilot sequences is not necessary for proper operation. In this context, feedforward algorithms are particularly useful in packet-oriented systems, where rapid and stable acquisition of the major transmission parameters is essential for subsequent processing stages. In the current paper, we propose a novel approach for blind estimation of the symbol timing, which needs just one or two samples per symbol. The new method is characterized by introducing a second filter in parallel to the receiver matched filter. Under Nyquist conditions, this filter exhibits an impulse response satisfying the extended zero-crossing property, i.e., it vanishes for all integer multiples of the symbol period, including the origin! Using this idea for a suitably designed timing estimator, it is shown that the annoying jitter floor - typical for most timing estimators and caused by pattern noise - can be avoided.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"2013 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":"125681416","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

Security requirements and solutions for integrated satellite-terrestrial Information-Centric Networks 卫星-地面综合信息中心网络的安全要求和解决方案

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.2014.6934531

N. Fotiou, Y. Thomas, V. Siris, George C. Polyzos

引用次数: 2

Interference coordination for the return link of a multibeam satellite system 多波束卫星系统返回链路的干扰协调

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.2014.6934569

Ui Yi Ng, A. Kyrgiazos, B. Evans

{"title":"Interference coordination for the return link of a multibeam satellite system","authors":"Ui Yi Ng, A. Kyrgiazos, B. Evans","doi":"10.1109/ASMS-SPSC.2014.6934569","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934569","url":null,"abstract":"Future internet demands are being increased dramatically year by year. Terrestrial systems are unable to satisfy these demands in all geographical areas and thus broadband access by satellite is a key service provision platform. Considering the traffic demands, the raw capacity should approach a Terabit/s by 2020 to meet these demands. The satellite communications network will be a star-based topology, where User Terminals (UT) from multiple beams communicate via central Gateway Earth Stations (GES). The return link from UT to satellite will use DVB-RCS2 Multi-Frequency Time Division Multiple Access (MF-TDMA) transmission scheme in Ka band (30GHz), while the return feeder link from satellite to GES in Q band (40 GHz). Due to generation of large number of narrow user beams, the interference starts becoming a limiting factor in the system's dimensioning. Herein, interference coordination schemes, borrowed from terrestrial cellular systems, are examined in terms of applicability and C/I performance. In addition, an algorithm for dynamic interference coordination is proposed to schedule the transmissions of the users in time-frequency domain of the return link, aiming to improve the C/I. The performance of these schemes and the proposed algorithm is assessed over a 302 user beams satellite system with practical antenna radiation patterns.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"9 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":"127867478","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

Comparison of channel codes in presence of pulsed jammers in TT&C links 测控链路中存在脉冲干扰时信道码的比较

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.2014.6934540

P. Martinelli, E. Cianca, L. Simone

引用次数: 7

On the impact of coverage range on AIS message reception at flying platforms 覆盖范围对飞行平台接收AIS电文的影响

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.2014.6934534

Federico Clazzer, A. Munari, S. Plass, Birgit Suhr

{"title":"On the impact of coverage range on AIS message reception at flying platforms","authors":"Federico Clazzer, A. Munari, S. Plass, Birgit Suhr","doi":"10.1109/ASMS-SPSC.2014.6934534","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934534","url":null,"abstract":"In the recent past, an increasing interest has been devoted to the possibility of receiving Automatic Identification System (AIS) messages via Low Earth Orbit (LEO) satellites. While the principle has been demonstrated to be a viable option for monitoring vessel traffic over oceans and vaste land areas, the achievable performance from a communications viewpoint is far from optimal. Recently, it was shown how AIS traffic seen at a satellite can be very accurately modeled resorting to simple random access schemes. Leveraging this result, in this work we propose a simple yet flexible analytical framework capable of predicting channel load and overall reception performance taking into account the spatial distribution of vessels as well as their traffic generation pattern. Feeding the model with ship speed and location data derived from experimental settings, we discuss the achievable efficiency for a typical LEO-satellite detecting AIS packets. Moreover, the impact of the receiver footprint on ground on the overall decoding performance is investigated, deriving some interesting insights on the benefits that could stem resorting to narrower-beam systems. In this direction, we discuss two cases: the usage of a LEO satellite with a directional antenna soon to be launched for AIS monitoring, and the possibility of using airliner for receiving vessel-generated traffic.","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":"115573947","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: 12

The European Data Relay System, high speed laser based data links 欧洲数据中继系统，基于高速激光的数据链路

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.2014.6934556

F. Heine, Gerd Muhlnikel, H. Zech, S. Philipp-May, R. Meyer

引用次数: 42