2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)最新文献_第5页

Internet of Things application layer protocol analysis over error and delay prone links 物联网应用层协议对易出错和延迟链路的分析

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.2014.6934573

M. Collina, M. Bartolucci, A. Vanelli-Coralli, G. Corazza

{"title":"Internet of Things application layer protocol analysis over error and delay prone links","authors":"M. Collina, M. Bartolucci, A. Vanelli-Coralli, G. Corazza","doi":"10.1109/ASMS-SPSC.2014.6934573","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934573","url":null,"abstract":"Internet of Things (IoT) application layer protocols are gaining popularity in a wide range of scenarios, where low-cost, low-power or resource constrained devices are present. The most diffused protocols are the Constrained Application Protocol (CoAP) and MQTT. In order to ensure message delivery, CoAP features a retransmission mechanism based on exponential back-off and a finite number of retransmissions, while MQTT relies on TCP. In remote areas lacking fixed terrestrial network infrastructure, the only available Internet access technology is often represented by wireless or satellite links, usually affected by losses and significant delay. At this time, there is no information about MQTT and CoAP performance over high delay links in the literature. The goal of this paper is to provide a quantitative performance analysis of the mentioned IoT protocols over various conditions of offered traffic, packet loss probability and delay. Our findings show that, with default protocol parameters, MQTT offers better performance in terms of throughput in any of the considered scenarios. As far as latency is concerned, CoAP slightly outperforms MQTT in case of low offered traffic, low loss probability and high delay. We suggest to tune CoAP parameters in order to cope with high traffic and high loss probability: the new parameters result in improved latency and throughput in those conditions.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"107 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":"122204411","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: 95

CLIFT: A Cross-Layer InFormation Tool for latency analysis based on real satellite physical traces 基于真实卫星物理轨迹的时延分析跨层信息工具

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.2014.6934542

N. Kuhn, E. Lochin, J. Lacan, O. Mehani, R. Boreli

{"title":"CLIFT: A Cross-Layer InFormation Tool for latency analysis based on real satellite physical traces","authors":"N. Kuhn, E. Lochin, J. Lacan, O. Mehani, R. Boreli","doi":"10.1109/ASMS-SPSC.2014.6934542","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934542","url":null,"abstract":"New mobile technology generations succeed in achieving high goodput, which results in diverse applications profiles exploiting various resource providers (Wifi, 4G, 5G, ...). Badly set parameters on one of the network component may severely impact on the transmission delay and reduce the quality of experience. The cross layer impact should be investigated on to assess the origin of latency. To run cross-layer (from physical layer to application layers) simulations, two approaches are possible: (1) use physical layer models that may not be exhaustive enough to drive consistent analysis or (2) use real physical traces. Driving realistic measurements by using real physical (MAC/PHY) traces inside network simulations is a complex task. We propose to cope with this problem by introducing Cross Layer InFormation Tool (CLIFT), that translates real physical events from a given trace in order to be used inside a network simulator such as ns-2. Our proposal enables to accurately perform analysis of the impact of link layer reliability schemes (obtained by the use of real physical traces) on transport layer performance and on the latency. Such approach enables a better understanding of the interactions between the layers. The main objective of CLIFT is to let us study the protocols introduced at each layer of the OSI model and study their interaction.We detail the internal mechanisms and the benefits of this software with a running example on 4G satellite communications scenarios.","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":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114986270","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

Architecture and analysis of a satellite downstream boost for xDSL networks xDSL网络卫星下行升压的结构与分析

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.2014.6934557

C. Cicconetti, Agostino Isca, G. Agapiou, I. Papafili, E. Atteo, Maurizio Manzo, D. Syvridis, Michael Bourmpos

{"title":"Architecture and analysis of a satellite downstream boost for xDSL networks","authors":"C. Cicconetti, Agostino Isca, G. Agapiou, I. Papafili, E. Atteo, Maurizio Manzo, D. Syvridis, Michael Bourmpos","doi":"10.1109/ASMS-SPSC.2014.6934557","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934557","url":null,"abstract":"The need to provide broadband in a uniform manner to all European citizens, regardless where their home is or what is their country, is pushing for a long time the scientific community to find alternatives to terrestrial xDSL, colliding with the need to have solutions that are not too expensive in terms of infrastructure and deployment costs. The project SAT4NET, funded under the ARTES 1 program of the European Space Agency (ESA), has the goal of analyzing the technical and economic feasibility of an integrated xDSL/satellite network architecture. The key idea is to exploit the very broad coverage of satellite to provide additional bandwidth to users in a digital divide situation, only when they need it, so as to keep the commercial offer to the users competitive with respect to similar offers by pure terrestrial telecom operators in densely populated areas. In this paper the architecture of such a hybrid network is outlined, along with discussing the key design choices that were identified in the study. Furthermore, results from the performance evaluation study of the network, based on packet-level simulations, are reported to show the effectiveness of the main proposed solutions.","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":"125097921","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

Payload data transmitter evolution for scientific missions: New capabilities for L2 and beyond 科学任务的有效载荷数据发射机发展:L2及以后的新能力

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.2014.6934528

P. Concari, Pantelis-Daniel M. Arapoglou, A. Ginesi, M. Bertinelli

引用次数: 0

Game theoretical analysis of the tradeoff between QoE and QoS over satellite channels 卫星信道QoE与QoS权衡的博弈分析

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.2014.6934519

Smrati Gupta, E. Belmega, M. Vázquez-Castro

引用次数: 5

Design of FIR filters with sum of power-of-two representation using simulated annealing 用模拟退火法设计具有2次幂和表示的FIR滤波器

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.2014.6934565

R. Baudin, G. Lesthievent

引用次数: 2

GNSS-based emergency message service: Lessons learned and future prospects 基于全球导航卫星系统的紧急电文服务:经验教训和未来前景

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-10-22 DOI: 10.1109/ASMS-SPSC.2014.6934555

Daisuke Iwaizumi, Takaki Ishida, Shota Iino, N. Kohtake, P. Buist

引用次数: 8

Bipartite Index coding Protocol 二部索引编码协议

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-09-26 DOI: 10.1109/ASMS-SPSC.2014.6934545

M. Muhammad, S. Schwarz

{"title":"Bipartite Index coding Protocol","authors":"M. Muhammad, S. Schwarz","doi":"10.1109/ASMS-SPSC.2014.6934545","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2014.6934545","url":null,"abstract":"In literature, the capacity of the Broadcast Packet Erasure Channel (BPEC) with feedback was derived and protocols were proposed. Out of these protocols, only few can be put in practice, because of their limitations. Mainly, these techniques impose impractical feedback assumption, which requests the feedback to be at the end of each time-slot. In this work, a novel protocol for reliable unicast transmissions over lossy broadcast links is proposed. Our approach represents a variation on the index coding theme, with bursty feedback. A satellite scenario, with the user-downlinks modelled as BPEC, is considered. Each user is downloading a different file composed of a set of distinct packets. Resulting from the channel broadcast nature, unintended users may overhear their neighbours packets. Using the side information and a bipartite graph, to model the problem at hand, allow us to build only instantly-decodable linear combinations, which are decoded by bit-wise XOR operations. These retransmissions occur at the end of every transmission round instead of every time-slot, which is a very realistic assumption in terrestrial wireless, cellular or satellite networks. Our protocol can easily serve an arbitrary number of users. Numerical results show that using our proposed scheme, rates very close to the capacity of the BPEC with feedback can be achieved.","PeriodicalId":192172,"journal":{"name":"2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121803582","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

DVB-RCS2/S2 testbed: A distributed testbed for next-generation satellite system design and validation DVB-RCS2/S2试验台:用于下一代卫星系统设计和验证的分布式试验台

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) Pub Date : 2014-09-10 DOI: 10.1109/ASMS-SPSC.2014.6934571

Stefan Erl, Tomaso de Cola

引用次数: 4

Satellite assisted delivery of alerts: A standardization activity within ETSI 卫星协助发出警报:ETSI内的一项标准化活动

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.2014.6934554

M. Berioli, Tomaso de Cola, J. Rammer, L. Ronga, S. Jayousi, L. Franck

引用次数: 4