Pub Date : 2009-10-13DOI: 10.1109/IWSSC.2009.5286413
E. T. Michailidis, A. Kanatas
This paper proposes a design approach to construct a high rank multiple-input multiple-output (MIMO) channel matrix in line-of-sight (LoS) propagation environment, when high altitude platforms (HAPs) are involved. This approach enhances the performance of systems, which can not utilize the MIMO gain introduced by independent and identically distributed (i.i.d.) Rayleigh fading channels or require the existence of a strong LoS signal. Geometrical design recommendations are introduced, considering Ka and V frequency bands licensed for broadband communications through HAPs. In these high frequency bands, the rain has a significant effect on the quality of the link and applications, such as Fixed Wireless Access (FWA), are feasible. The results show the potential capacity gain of the optimized LoS-HAP-MIMO architecture, under clear sky and rain conditions.
{"title":"Capacity optimized line-of-sight HAP-MIMO channels for Fixed Wireless Access","authors":"E. T. Michailidis, A. Kanatas","doi":"10.1109/IWSSC.2009.5286413","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286413","url":null,"abstract":"This paper proposes a design approach to construct a high rank multiple-input multiple-output (MIMO) channel matrix in line-of-sight (LoS) propagation environment, when high altitude platforms (HAPs) are involved. This approach enhances the performance of systems, which can not utilize the MIMO gain introduced by independent and identically distributed (i.i.d.) Rayleigh fading channels or require the existence of a strong LoS signal. Geometrical design recommendations are introduced, considering Ka and V frequency bands licensed for broadband communications through HAPs. In these high frequency bands, the rain has a significant effect on the quality of the link and applications, such as Fixed Wireless Access (FWA), are feasible. The results show the potential capacity gain of the optimized LoS-HAP-MIMO architecture, under clear sky and rain conditions.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127356984","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}
Pub Date : 2009-10-13DOI: 10.1109/IWSSC.2009.5286435
A. Gotta, E. Ferro, F. Potortì
In case of video streaming services via satellite towards vehicular clients, very long blockage periods due to road infrastructures, vegetation, and so on, may lead to a complete channel outage, which may result in the loss of all packets transmitted during that period, even in the presence of interleaving and FEC techniques. But if these periods are predictable, as in the presence of known routes traced by means of a GPS navigator, it may be advisable to alert the transmitter in advance, in order to counteract the incoming outage interval. We refer to this technique as Smart Mode. In the following we will detail how Smart Mode takes advantage of FEC and interleaving techniques, in order to improve the Quality of Experience and to reduce the waste of bandwidth in satellite multimedia streaming.
{"title":"Quality of Experience in Satellite video streaming transmissions in urban vehicular environment","authors":"A. Gotta, E. Ferro, F. Potortì","doi":"10.1109/IWSSC.2009.5286435","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286435","url":null,"abstract":"In case of video streaming services via satellite towards vehicular clients, very long blockage periods due to road infrastructures, vegetation, and so on, may lead to a complete channel outage, which may result in the loss of all packets transmitted during that period, even in the presence of interleaving and FEC techniques. But if these periods are predictable, as in the presence of known routes traced by means of a GPS navigator, it may be advisable to alert the transmitter in advance, in order to counteract the incoming outage interval. We refer to this technique as Smart Mode. In the following we will detail how Smart Mode takes advantage of FEC and interleaving techniques, in order to improve the Quality of Experience and to reduce the waste of bandwidth in satellite multimedia streaming.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132763868","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}
Pub Date : 2009-10-13DOI: 10.1109/IWSSC.2009.5286311
F. Arnal, C. Baudoin, J. Fasson, B. Paillassa, E. Chaput, F. Goas, S. Ducloux, P. Gelard, E. Dubois
The emerging IP Multimedia Subsystem (IMS) framework appears as a candidate solution to achieve generalized network and service convergence. Thus, the question of how to integrate satellite systems into IMS, based on a standard solution like DVB-RCS fully makes sense. In this paper, the main requirements to support IMS in DVB-RCS networks are identified, and optimizations for this integration are discussed. Experimental results emulating our network architecture proposals are also reported.
{"title":"On DVB satellite network integration in IMS","authors":"F. Arnal, C. Baudoin, J. Fasson, B. Paillassa, E. Chaput, F. Goas, S. Ducloux, P. Gelard, E. Dubois","doi":"10.1109/IWSSC.2009.5286311","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286311","url":null,"abstract":"The emerging IP Multimedia Subsystem (IMS) framework appears as a candidate solution to achieve generalized network and service convergence. Thus, the question of how to integrate satellite systems into IMS, based on a standard solution like DVB-RCS fully makes sense. In this paper, the main requirements to support IMS in DVB-RCS networks are identified, and optimizations for this integration are discussed. Experimental results emulating our network architecture proposals are also reported.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131154450","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}
Pub Date : 2009-10-13DOI: 10.1109/IWSSC.2009.5286333
M. Ali, L. Liang, Z. Sun, H. Cruickshank
With the rapid development of the Internet, new technologies and applications are emerging. One of the important applications is voice over IP. Satellites are playing an important role to provide VoIP services with their global coverage and on-board processing ability over IP networks. Satellite network environment, generally characterized by large delay and erroneous link, is considered to be unfriendly to VoIP. The performance of VoIP is adversely influenced by these characteristics. The performance metrics of VoIP are signaling, bandwidth, delay, jitter and packet loss. Signaling plays a key role in call establishment and rest of the parameters signifies the quality of service (QoS). In this paper, the performance related issues of SIP-based VoIP over current, IPv4, and next generation, IPv6 satellites is studied. A comparative analysis is performed for different voice codecs. The experimentation is carried out on the satellite network testbed at Centre for Communication Systems Research (CCSR), University of Surrey. The results show that delay, jitter and packet loss are quite comparable for both IPv4 and IPv6 over satellites. SIP signaling performs poorly in IPv6 as compared to IPv4. IPv6 can be adapted for VoIP over satellites, but with some modifications for SIP signaling.
{"title":"SIP signaling and QoS for VoIP over IPv6 DVB-RCS satellite networks","authors":"M. Ali, L. Liang, Z. Sun, H. Cruickshank","doi":"10.1109/IWSSC.2009.5286333","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286333","url":null,"abstract":"With the rapid development of the Internet, new technologies and applications are emerging. One of the important applications is voice over IP. Satellites are playing an important role to provide VoIP services with their global coverage and on-board processing ability over IP networks. Satellite network environment, generally characterized by large delay and erroneous link, is considered to be unfriendly to VoIP. The performance of VoIP is adversely influenced by these characteristics. The performance metrics of VoIP are signaling, bandwidth, delay, jitter and packet loss. Signaling plays a key role in call establishment and rest of the parameters signifies the quality of service (QoS). In this paper, the performance related issues of SIP-based VoIP over current, IPv4, and next generation, IPv6 satellites is studied. A comparative analysis is performed for different voice codecs. The experimentation is carried out on the satellite network testbed at Centre for Communication Systems Research (CCSR), University of Surrey. The results show that delay, jitter and packet loss are quite comparable for both IPv4 and IPv6 over satellites. SIP signaling performs poorly in IPv6 as compared to IPv4. IPv6 can be adapted for VoIP over satellites, but with some modifications for SIP signaling.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132881307","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}
Pub Date : 2009-10-13DOI: 10.1109/IWSSC.2009.5286423
Y. F. Hu, P. Pillai, Matteo Beriolli
This paper presents an extension for Broadband Satellite Multimedia (BSM) to support Mobility Management (MM). To support seamless handovers, mobility related entities are proposed in the Satellite Independent Access Function (SIAF) defined over the SI-SAP interface. This enables the mapping of the mobility related primitives between the higher layer and the satellite dependant lower layers via the Satellite Dependent Access Function (SDAF). The proposed MM architecture incorporates the Media Independent Handover Services defined in the IEEE802.21 to support handover between different satellite systems. This includes definition of the Media Independent Handover Function (MIHF) which provides interworking between heterogeneous 802 networks and between 802 and other terrestrial mobile networks through the support of three services for handover, namely, Media Independent Event Services (MIES), Media Independent Command Services (MICS) and Media Independent Information Services (MIIS). A detailed description of the function architecture and a case study showing the signalling interaction between MIH and SI-SAP primitves are presented.
{"title":"Mobility extension for Broadband Satellite Multimedia","authors":"Y. F. Hu, P. Pillai, Matteo Beriolli","doi":"10.1109/IWSSC.2009.5286423","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286423","url":null,"abstract":"This paper presents an extension for Broadband Satellite Multimedia (BSM) to support Mobility Management (MM). To support seamless handovers, mobility related entities are proposed in the Satellite Independent Access Function (SIAF) defined over the SI-SAP interface. This enables the mapping of the mobility related primitives between the higher layer and the satellite dependant lower layers via the Satellite Dependent Access Function (SDAF). The proposed MM architecture incorporates the Media Independent Handover Services defined in the IEEE802.21 to support handover between different satellite systems. This includes definition of the Media Independent Handover Function (MIHF) which provides interworking between heterogeneous 802 networks and between 802 and other terrestrial mobile networks through the support of three services for handover, namely, Media Independent Event Services (MIES), Media Independent Command Services (MICS) and Media Independent Information Services (MIIS). A detailed description of the function architecture and a case study showing the signalling interaction between MIH and SI-SAP primitves are presented.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"1028 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134286934","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}
Pub Date : 2009-10-13DOI: 10.1109/IWSSC.2009.5286428
E. Fazli, Angels Via, M. Werner
This paper presents the development of a laboratory demonstrator within NEWSKY, a project co-funded by the European Commission within its 6th Research Framework Programme (FP6). The test-bed is used to demonstrate the feasibility of host and network mobility, using Mobile IPv6 (MIPv6) and Network Mobility (NEMO) protocol stack for future Air Traffic Management (ATM) networks. Representative results as an outcome of extensive network performance measurements using real satellite and emulated terrestrial links are presented at the end of the paper.
{"title":"Laboratory test-bed development for IPv6 network mobility demonstration in aeronautical communications network","authors":"E. Fazli, Angels Via, M. Werner","doi":"10.1109/IWSSC.2009.5286428","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286428","url":null,"abstract":"This paper presents the development of a laboratory demonstrator within NEWSKY, a project co-funded by the European Commission within its 6th Research Framework Programme (FP6). The test-bed is used to demonstrate the feasibility of host and network mobility, using Mobile IPv6 (MIPv6) and Network Mobility (NEMO) protocol stack for future Air Traffic Management (ATM) networks. Representative results as an outcome of extensive network performance measurements using real satellite and emulated terrestrial links are presented at the end of the paper.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123991103","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}
Pub Date : 2009-10-13DOI: 10.1109/IWSSC.2009.5286404
P. Pillai, Yim-Fun Hu
IP multicast can be used for one-to-many or many-to-many communications providing efficient resource consumption. When providing IP services to passengers on a plane via a satellite, IP multicasting techniques can be very useful in saving resources over the satellite. A novel framework (MSECAAA) presented in [1], combines the IETF multicast security architecture with efficient AAA techniques enabling the network provider to directly control access to multicast sessions and account the usage of the multicast services. This paper first describes in detail the network architecture and the system design for providing multicast services to aeronautical passengers and then describes how the MSEC-AAA may be extended and used to provide efficient IP multicast services to aeronautical passengers. The paper also describes the post-paid and pre-paid accounting mechanism that may be used by the Aircraft Network Provider to account the multicast usage.
{"title":"AAA framework for aeronautical passenger multicast communication","authors":"P. Pillai, Yim-Fun Hu","doi":"10.1109/IWSSC.2009.5286404","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286404","url":null,"abstract":"IP multicast can be used for one-to-many or many-to-many communications providing efficient resource consumption. When providing IP services to passengers on a plane via a satellite, IP multicasting techniques can be very useful in saving resources over the satellite. A novel framework (MSECAAA) presented in [1], combines the IETF multicast security architecture with efficient AAA techniques enabling the network provider to directly control access to multicast sessions and account the usage of the multicast services. This paper first describes in detail the network architecture and the system design for providing multicast services to aeronautical passengers and then describes how the MSEC-AAA may be extended and used to provide efficient IP multicast services to aeronautical passengers. The paper also describes the post-paid and pre-paid accounting mechanism that may be used by the Aircraft Network Provider to account the multicast usage.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129155059","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}
Pub Date : 2009-10-13DOI: 10.1109/IWSSC.2009.5286409
A. Vanelli-Coralli, G. Corazza, M. Luglio, S. Cioni
The ISICOM concept has been defined in the framework of the ISI Technology Platform as a mean to provide the necessary communication infrastructure in support to the achievement of the European Space Policy goals. In this paper, we introduce the ISICOM Architecture: starting from the ISICOM devised missions, we describe the founding architecture concepts that shall be taken into consideration in the design of the ISICOM architecture in order to meet the challenging requirements set forth by the ISICOM missions.
{"title":"The ISICOM Architecture","authors":"A. Vanelli-Coralli, G. Corazza, M. Luglio, S. Cioni","doi":"10.1109/IWSSC.2009.5286409","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286409","url":null,"abstract":"The ISICOM concept has been defined in the framework of the ISI Technology Platform as a mean to provide the necessary communication infrastructure in support to the achievement of the European Space Policy goals. In this paper, we introduce the ISICOM Architecture: starting from the ISICOM devised missions, we describe the founding architecture concepts that shall be taken into consideration in the design of the ISICOM architecture in order to meet the challenging requirements set forth by the ISICOM missions.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116098271","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}
Pub Date : 2009-10-13DOI: 10.1109/IWSSC.2009.5286416
R. Garello, Noureddine Boujnah, Yifan Jia
In this paper, we present a new iterative algorithm for designing binary sequences with good properties in terms of aperiodic autocorrelation function. The algorithm has a low complexity, growing linearly with the sequence length, and allows improvements with respect to best known sequences, especially for large lengths. First, we show its application to the design of long markers for frame synchronization. In particular, new markers with length 128 and 192 bits are generated and evaluated, showing consistent improvements with respect to current markers used by CCSDS Recommendation for turbo code synchronization at very low SNR. Then, the proposed technique is applied to the design of binary arrays with small values of peak side lobes, as required by various communication and signal processing applications, including radar.
{"title":"Design of binary sequences and matrices for space applications","authors":"R. Garello, Noureddine Boujnah, Yifan Jia","doi":"10.1109/IWSSC.2009.5286416","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286416","url":null,"abstract":"In this paper, we present a new iterative algorithm for designing binary sequences with good properties in terms of aperiodic autocorrelation function. The algorithm has a low complexity, growing linearly with the sequence length, and allows improvements with respect to best known sequences, especially for large lengths. First, we show its application to the design of long markers for frame synchronization. In particular, new markers with length 128 and 192 bits are generated and evaluated, showing consistent improvements with respect to current markers used by CCSDS Recommendation for turbo code synchronization at very low SNR. Then, the proposed technique is applied to the design of binary arrays with small values of peak side lobes, as required by various communication and signal processing applications, including radar.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116318789","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}
Pub Date : 2009-10-13DOI: 10.1109/IWSSC.2009.5286387
C. Capsoni, M. d'Amico, R. Nebuloni
Site and time diversity are countermeasures used in satellite links to mitigate outage due to rain attenuation; in this paper these techniques will be compared through radar simulation, and the close mutual relationship highlighted.
{"title":"Time and site diversity gain: A close relationship","authors":"C. Capsoni, M. d'Amico, R. Nebuloni","doi":"10.1109/IWSSC.2009.5286387","DOIUrl":"https://doi.org/10.1109/IWSSC.2009.5286387","url":null,"abstract":"Site and time diversity are countermeasures used in satellite links to mitigate outage due to rain attenuation; in this paper these techniques will be compared through radar simulation, and the close mutual relationship highlighted.","PeriodicalId":137431,"journal":{"name":"2009 International Workshop on Satellite and Space Communications","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115791805","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}
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