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2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop最新文献

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Resource allocation mechanisms in satellite cooperative systems 卫星合作系统中的资源配置机制
2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586922
L. Ronga, R. Suffritti, E. Del Re
{"title":"Resource allocation mechanisms in satellite cooperative systems","authors":"L. Ronga, R. Suffritti, E. Del Re","doi":"10.1109/ASMS-SPSC.2010.5586922","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2010.5586922","url":null,"abstract":"This paper reports a study concerning the assessment of cooperation effects at MAC layer in DVB-RCS systems. In particular, a modified resource allocation mechanism has been considered in order to implement a Selective Forwarding cooperation scheme within a group of sources working in a land-vehicular scenario. The achieved results are presented in terms of aggregated average throughput for different source loads. The use of cooperation can allow improving system performance depending on the number of cooperators considered and the different channel conditions which they are subject to, and increasing the number of scenarios characterized by different propagation conditions wherein the system can transmit data packets compared to the case of absence of cooperation.","PeriodicalId":221214,"journal":{"name":"2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131269948","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
On the performance of moderate-length non-binary LDPC codes for space communications 空间通信中长度非二进制LDPC码的性能研究
2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586886
L. Costantini, B. Matuz, G. Liva, E. Paolini, M. Chiani
{"title":"On the performance of moderate-length non-binary LDPC codes for space communications","authors":"L. Costantini, B. Matuz, G. Liva, E. Paolini, M. Chiani","doi":"10.1109/ASMS-SPSC.2010.5586886","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2010.5586886","url":null,"abstract":"In this paper, an overview of recent achievements in the design and decoding of non-binary low-density parity-check (LDPC) codes is provided. Non-binary constructions based on ultra-sparse matrices are compared with binary low-density parity-check codes and turbo codes from satellite communication standards, to show that larger coding gains (outperforming the binary competitors by at least 0.3 dB) can be achieved on the AWGN channel, especially in the moderate/short block regimes. Thanks to this excellent performance, non-binary LDPC codes represent an appealing solution for space communications.","PeriodicalId":221214,"journal":{"name":"2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131584744","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
Optimal linear prediction of rain attenuation using the Maseng-Bakken model 利用Maseng-Bakken模型对降雨衰减进行最优线性预测
2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586896
C. Mailhes, J. Tourneret, Z. Faraj
{"title":"Optimal linear prediction of rain attenuation using the Maseng-Bakken model","authors":"C. Mailhes, J. Tourneret, Z. Faraj","doi":"10.1109/ASMS-SPSC.2010.5586896","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2010.5586896","url":null,"abstract":"The Maseng-Bakken model has shown interesting properties to model rain attenuation for Ka and Q/V broadband satellite systems. This paper derives the optimal rain attenuation predictor based on the Maseng-Bakken model. The optimal predictor is obtained by minimizing the mean square error between the rain attenuation and its estimate. We show that this predictor reduces to a bank of filters whose parameters depend on the rain attenuation power spectral density. Simulation results allow us to appreciate the performance of the resulting rain attenuation prediction that is compared with more traditional strategies.","PeriodicalId":221214,"journal":{"name":"2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123903493","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
Performance assessment based on field measurements of Mobile Satellite Services over hybrid networks in S-Band 基于s波段混合网络移动卫星业务现场测量的性能评估
2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586869
O. Pulvirenti, D. Ortiz, A. Del Bianco, S. Sudler, R. Hoppe, M. Pannozzo
{"title":"Performance assessment based on field measurements of Mobile Satellite Services over hybrid networks in S-Band","authors":"O. Pulvirenti, D. Ortiz, A. Del Bianco, S. Sudler, R. Hoppe, M. Pannozzo","doi":"10.1109/ASMS-SPSC.2010.5586869","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2010.5586869","url":null,"abstract":"This paper summarises the results of several sessions of measurements executed in the context of the research project named “J-ORTIGIA”. The scope of the project was to validate all kinds of hybrid reception supported by the DVB-SH able to counteract fading in satellite and terrestrial environments. The results of the measurements have also contributed to the 2nd issue of the DVB-SH Implementation Guidelines.","PeriodicalId":221214,"journal":{"name":"2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121299660","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
Adding different levels of QoS to the DVB-SH standard 向DVB-SH标准添加不同级别的QoS
2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586882
Aharon Vargas, M. Breiling, W. Gerstacker, H. Stadali, E. Eberlein, A. Heuberger
{"title":"Adding different levels of QoS to the DVB-SH standard","authors":"Aharon Vargas, M. Breiling, W. Gerstacker, H. Stadali, E. Eberlein, A. Heuberger","doi":"10.1109/ASMS-SPSC.2010.5586882","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2010.5586882","url":null,"abstract":"We propose and analyze two strategies to provide different levels of quality of service (QoS) to the DVB-SH standard. An extension of the interleaving scheme is investigated to support low latency service requirements for interactive services based on short messages. The first approach is a straightforward extension of the DVB-SH interleaver scheme based on an early-uniform interleaver profile, and the second one is the introduction of a super short interleaver, referred to as molded interleaver, which is embedded inside the standard DVB-SH interleaver. An exhaustive analysis, based on laboratory measurements, shows the benefits of the molded interleaver. Finally a comparison between the modified interleaving strategy and the use of hierarchical modulation is presented.","PeriodicalId":221214,"journal":{"name":"2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126928408","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
How feasible is network coding in current satellite systems? 网络编码在当前卫星系统中的可行性如何?
2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586880
F. Vieira, S. Shintre, J. Barros
{"title":"How feasible is network coding in current satellite systems?","authors":"F. Vieira, S. Shintre, J. Barros","doi":"10.1109/ASMS-SPSC.2010.5586880","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2010.5586880","url":null,"abstract":"The benefits of network coding in terms of throughput, security and robustness are well understood for a large class of networks, such as wireless mesh networks and peer-to-peer systems. We ask if similar performance enhancements can be attained in satellite based communications. Our feasibility study focuses on GEO satellite communication systems including regenerative payloads and multi spot-beam satellites. In addition, we consider LEO satellite constellations with multi-path scenarios. Our analysis reveals that several network coding techniques are worthy of consideration for new generation satellite systems with highly dynamic and unpredictable behavior.","PeriodicalId":221214,"journal":{"name":"2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126569990","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: 35
Improved GNSS positioning exploiting a vehicular P2P infrastructure 利用车载P2P基础设施改进GNSS定位
2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586924
M. Rao, L. Presti, J. Samson
{"title":"Improved GNSS positioning exploiting a vehicular P2P infrastructure","authors":"M. Rao, L. Presti, J. Samson","doi":"10.1109/ASMS-SPSC.2010.5586924","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2010.5586924","url":null,"abstract":"This paper considers the possibility to exploit external altitude measurements to improve the performance of a Kalman based GNSS receiver. The altitude measurements are provided by means of a peer to peer network, that is supposed to be based on the evolution of the 802.11 standard for the vehicular environment, namely the WAVE (802.11p). The performance of such a system are investigated for different characteristics of the aiding measurement and for a different number and disposals of the aiding peers. The aiding measurement is obtained starting from the altitude measurements that the other peers in the network send to the aided user. The experiments highlight the need for a parameter that points out the effectiveness and the consistency of the computed aiding measurement, taking into account many parameters such as the number of peers, their distribution in the user cluster and the number of satellites available for the solution computation. To this purpose, a reliability index is defined and the performance of a system that relies on this index are shown.","PeriodicalId":221214,"journal":{"name":"2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116517308","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
A comparison of different physical layer network coding techniques for the satellite environment 卫星环境下不同物理层网络编码技术的比较
2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586915
F. Rossetto
{"title":"A comparison of different physical layer network coding techniques for the satellite environment","authors":"F. Rossetto","doi":"10.1109/ASMS-SPSC.2010.5586915","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2010.5586915","url":null,"abstract":"The increased interest around the concept of \"physical layer network coding\" has generated a whole range of different technical solutions to implement it, which tradeoff complexity at the different elements of the network. While the effectiveness of this concept has been safely established for the two way relay channel, far less investigation has touched more sophisticated topologies, neither terrestrial nor satellite. Hence the scalability of such concepts has not yet been duly analyzed. We provide in this paper a first evaluation of this important idea in the satellite environment. Results show that the amplify-and-forward paradigm would scale rather badly and thus some computational capability at the relay (i.e., the satellite or the controlling gateway) are necessary.","PeriodicalId":221214,"journal":{"name":"2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134604376","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
Modulation classifier for signals used in satellite communications 用于卫星通信的信号调制分类器
2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586892
M. Flohberger, W. Gappmair, O. Koudelka
{"title":"Modulation classifier for signals used in satellite communications","authors":"M. Flohberger, W. Gappmair, O. Koudelka","doi":"10.1109/ASMS-SPSC.2010.5586892","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2010.5586892","url":null,"abstract":"For the design of intelligent receivers, the classification of modulation schemes becomes an increasingly important task. Interestingly, the numerous papers on this subject neglect algorithms for the classification of APSK signals, although these are recommended in the DVB-S2 standard. Therefore, a feature-based method for classification of modulation schemes typically used in satellite communications, i.e. PSK, QAM and APSK, is proposed. As features, fourth- and sixth-order cumulants of the input samples are employed in this context. The performance of the moderately complex algorithm is verified by several simulation scenarios.","PeriodicalId":221214,"journal":{"name":"2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130852050","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
Optimizing cross layer coding redundancy in slow fading channels 慢衰落信道中跨层编码冗余优化
2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586876
M. Papaleo, V. Petrini, R. Firrincieli, A. Vanelli-Coralli, G. Corazza
{"title":"Optimizing cross layer coding redundancy in slow fading channels","authors":"M. Papaleo, V. Petrini, R. Firrincieli, A. Vanelli-Coralli, G. Corazza","doi":"10.1109/ASMS-SPSC.2010.5586876","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2010.5586876","url":null,"abstract":"We analyze a wireless communication system in which channel coding is applied to both physical and upper layer. In this scenario, we study the splitting of redundancy between the coding schemes applied to the two layers. Considering a frequency-flat, slowly varying fading channel, we derive the optimum splitting value for a given signalling format. The theoretical analysis is validated by means of numerical simulation.","PeriodicalId":221214,"journal":{"name":"2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133061715","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
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