A technical comparison of three low earth orbit satellite constellation systems to provide global broadband

Portillo, Iñigo del; Cameron, Bruce; Crawley, Edward F.

doi:10.1016/j.actaastro.2019.03.040

Cited by 552 publications

(294 citation statements)

References 20 publications

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“…The LEO satellite system is becoming the global communication service provider's counterpart to local terrestrial paging, cellular, and fiber networks. Telesat, OneWeb, SpaceX [32,33], and Amazon [34] have initiated LEO satellites to establish low cost, affordable, and sustainable global communications.…”

Section: Wireless and Satellite Communicationsmentioning

confidence: 99%

Affordable Broadband with Software Defined IPv6 Network for Developing Rural Communities

Dawadi

Rawat

Joshi

et al. 2019

ASI

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The software defined networking (SDN) paradigm with enhanced features of IPv6 offers flexible network management and better network visibility for enhancing overall network performance, network manageability, and security. Thus, along with the IPv6 network deployment worldwide, SDN migration has emerged worldwide, but network service providers suffer from different issues when migrating their existing legacy network into operable SDN and IPv6 enabled networks. In this paper, we investigate the affordability of broadband network services for the rural communities in the context of information and communication technology (ICT) infrastructure deployment throughout Nepal. During the phase of network transformation, it will be more challenging for the service providers of Nepal to have a proper choice of technologies to expand the network while considering the proper policy formulation, affordability, need of skilled human resources, deployment cost, and many other aspects. We also present the service provider affordability via energy optimization in software defined IPv6 network (SoDIP6) implementation that contributes to a reduction in organizational operational expenditure (OpEX). We perform an experimental analysis over an SoDIP6 network testbed and present a comparison of the annual energy and OpEX savings for network service providers. Our empirical analysis shows that an energy saving of 31.50% on switches and 55.44% on links can be achieved with an SoDIP6 network compared to a network with legacy devices and network management. Optimization on service provider network operational cost leads to sustainability and affordable services to both customers and service providers

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Section: Wireless and Satellite Communicationsmentioning

confidence: 99%

Affordable Broadband with Software Defined IPv6 Network for Developing Rural Communities

Dawadi

Rawat

Joshi

et al. 2019

ASI

View full text Add to dashboard Cite

show abstract

“…Of the mix of access technologies in 6G, satellite communications will play a pivotal role due to their wide coverage. Notably, the new generations of low earth orbit (LEO) satellites are gaining a high-visibility in both industry and academia because they guarantee higher capacities (almost 1 Tbps [14,15]) and lower delays (20-50 milliseconds [15]). In industry, different mega-constellations of LEOs are being manufactured and partially launched into space lately.…”

Section: Introductionmentioning

confidence: 99%

Latency-Aware Offloading in Integrated Satellite Terrestrial Networks

Abderrahim¹,

Amin²,

Alouini³

et al. 2020

Preprint

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Next-generation communication networks are expected to integrate newly-used technologies in a smart way to ensure continuous connectivity in rural areas and to alleviate the traffic load in dense regions. The prospective access network in 6G should hinge on satellite systems to take advantage of their wide coverage and high capacity. However, adopting satellites in 6G could be hindered because of the {additional latency introduced}, which is not tolerable by all traffic types. Therefore, we propose a traffic offloading scheme that integrates both the satellite and terrestrial networks to smartly allocate the traffic between them while satisfying different traffic requirements. Specifically, the proposed scheme offloads the Ultra-Reliable Low Latency Communication (URLLC) traffic to the terrestrial backhaul to satisfy its stringent latency requirement. However, it offloads the enhanced Mobile Broadband (eMBB) traffic to the satellite since eMBB needs high data rates but is not always sensitive to delay. Our scheme is shown to reduce the transmission delay of URLLC packets, decrease the number of dropped eMBB packets, and hence improve the network's availability. Our findings highlight that the inter-working between satellite and terrestrial networks is crucial to mitigate the expected high load on the limited terrestrial capacity.<br>

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“…coverage. Notably, the new generations of low earth orbit (LEO) satellites are gaining a high-visibility in both industry and academia because they guarantee higher capacities (almost 1 Tbps [14,15]) and lower delays (20-50 milliseconds [15]). In industry, different mega-constellations of LEOs are being manufactured and partially launched into space lately.…”

mentioning

confidence: 99%

“…In industry, different mega-constellations of LEOs are being manufactured and partially launched into space lately. For example, the aerospace manufacturer SpaceX has an ambitious project to cover the Earth with around 12000 LEO satellites [15]. SpaceX is racing against Amazon and OneWeb, which plan to launch 3236 satellites (Project Kuiper) and 650 satellites, respectively [15,18].…”

mentioning

confidence: 99%

“…For example, the aerospace manufacturer SpaceX has an ambitious project to cover the Earth with around 12000 LEO satellites [15]. SpaceX is racing against Amazon and OneWeb, which plan to launch 3236 satellites (Project Kuiper) and 650 satellites, respectively [15,18]. They all aim to widen the terrestrial network's connectivity and, more crucially to extend its limited capacity [4].…”

mentioning

confidence: 99%

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Latency-Aware Offloading in Integrated Satellite Terrestrial Networks

Abderrahim¹,

Amin²,

Alouini³

et al. 2020

Preprint

View full text Add to dashboard Cite

Next-generation communication networks are expected to integrate newly-used technologies in a smart way to ensure continuous connectivity in rural areas and to alleviate the traffic load in dense regions. The prospective access network in 6G should hinge on satellite systems to take advantage of their wide coverage and high capacity. However, adopting satellites in 6G could be hindered because of the additional latency introduced, which is not tolerable by all traffic types. Therefore, we propose a traffic offloading scheme that integrates both the satellite and terrestrial networks to smartly allocate the traffic between them while satisfying different traffic requirements. Specifically, the proposed scheme offloads the Ultra-Reliable Low Latency Communication (URLLC) traffic to the terrestrial backhaul to satisfy its stringent latency requirement. However, it offloads the enhanced Mobile Broadband (eMBB) traffic to the satellite since eMBB needs high data rates but is not always sensitive to delay. Our scheme is shown to reduce the transmission delay of URLLC packets, decrease the number of dropped eMBB packets, and hence improve the network's availability. Our findings highlight that the inter-working between satellite and terrestrial networks is crucial to mitigate the expected high load on the limited terrestrial capacity.

show abstract

A technical comparison of three low earth orbit satellite constellation systems to provide global broadband

Cited by 552 publications

References 20 publications

Affordable Broadband with Software Defined IPv6 Network for Developing Rural Communities

Affordable Broadband with Software Defined IPv6 Network for Developing Rural Communities

Latency-Aware Offloading in Integrated Satellite Terrestrial Networks

Latency-Aware Offloading in Integrated Satellite Terrestrial Networks

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