StarPerf: Characterizing Network Performance for Emerging Mega-Constellations

Lai, Zeqi; Li, Hewu; Li, Jihao

doi:10.1109/icnp49622.2020.9259357

Cited by 47 publications

(16 citation statements)

References 29 publications

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“…Experimental setup: With our limited capability of launching massive satellites to space, we conduct a hardware-in-theloop, trace-driven emulation to approximate the real spaceground networks. We use StarPerf [42] to approximate the mega-constellations based on F-Rosette's setup in §3.2 and real TLE orbit information of Starlink [1], Kuiper [2], and Telesat [3] from Space-Track [43]. The emulator will generate : F-Rosette's inter-satellite link delay in free space under J4 orbit propagation model [44,45].…”

Section: Discussionmentioning

confidence: 99%

Fractal Rosette: A Stable Space-Ground Network Structure in Mega-Constellation

Li¹,

Li²,

Liu³

et al. 2021

Preprint

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We present F-Rosette, a stable space-ground network structure for low-earth orbit (LEO) satellite mega-constellations at scale. Due to the dynamic many-to-many space-ground mapping in high mobility, existing LEO mega-constellations with IP protocol stack suffer from frequent user IP address changes (every 133-510s per user) and network routing reconvergence (thus ≤20% network usability). To provably stabilize the space-ground network under high dynamics, F-Rosette aligns the network design in the cyberspace with the mega-constellations in the physical world. It devises a recursively stable network structure over the Rosette constellation, decouples the hierarchical network addresses from mobility for stability, and aligns the geographical routing on the ground with the topological routing in space for efficiency and high usability. Our hardware-in-the-loop, trace-driven emulations validate F-Rosette's stability, near-optimal routing (≤1.4% additional delays), and affordable overhead (<1% CPU, <2MB memory) for resource-constrained satellites.

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Section: Discussionmentioning

confidence: 99%

Fractal Rosette: A Stable Space-Ground Network Structure in Mega-Constellation

Li¹,

Li²,

Liu³

et al. 2021

Preprint

Self Cite

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“…Low earth orbit satellite networks (LEO networks for short) have been recognized as a promising solution to realizing satellite Internet. Compared with geostationary earth orbit (GEO) and medium earth orbit (MEO) satellites, LEO satellites have a much less distance to terrestrial users, resulting in a latency similar to or even smaller than that in terrestrial Internet [1]. LEO satellites can also achieve a greater link capacity and less signal attenuation.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the many benefits brought by LEO networks, projects have been launched recently to construct satellite Internet by using interconnecting LEO satellites, including Starlink 1 , OneWeb 2 , etc. Meanwhile, an increasing trend of research interest has been shown in related areas, such as mega-constellations [1] and space-air-terrestrial integrated networks [2].…”

Section: Introductionmentioning

confidence: 99%

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ASER: Scalable Distributed Routing Protocol for LEO Satellite Networks

Zhang

Yang

et al. 2021

2021 IEEE 46th Conference on Local Computer Networks (LCN)

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Low earth orbit (LEO) satellite networks are promising at constructing the satellite Internet. Dynamics of a large-scale LEO network topology induces critical problems on routing efficiency and scalability. Existing approaches either suffer from such routing problems, or have limited resilience against unpredictable link/node failures. We propose Area-based SatellitE Routing (ASER), a fully distributed routing protocol for LEO networks with high efficiency and scalability. ASER uses a hierarchical routing mechanism, which groups satellites into areas, in such a way that the inter-area routing never changes due to handovers of inter-satellite links. Routing can be quickly reconstructed with little overhead when either regular or unpredictable topology changes occur. We develop ASER based on OSPF, and propose an efficient algorithm to construct the forwarding table, enabling standard packet forwarding. Simulations validate that ASER can reduce the convergence time by more than 50%, and reduce computation and control overhead by orders of magnitude.3 Parameter θ in Fig. 1 and Fig. 2 means the half apex angle of the cone which is the reachable range of a satellite antenna.

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“…This paper determines this distance. Toward this regard, [8]- [10] have compared the latency of multiple satellite links regarding optical fiber when it is desired to connect several cities. The results show that it is possible to obtain a routing algorithm that minimizes the latency compared to a direct connection using optical fiber.…”

mentioning

confidence: 99%

Optical Communications Through Low Orbit Satellites

Montero¹,

Feliu²,

Bas

2021

2021 Global Congress on Electrical Engineering (GC-ElecEng)

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Current societal needs demand for global high-speed networks. Toward this regard, 3GPP has included in its release 17 Non-Terrestrial Networks (NTN). In order to meet the strict requirements of 6G networks, Very Low Earth Orbit (VLEO) and Low Earth Orbit (LEO) satellites will play a key role. Optical fibers can also be used for transmitting data at high speeds. Unfortunately, the refraction index of the optical fibers and the satellite altitude penalize them. So, this paper determines the transmission distance for which it is better to use optical fiber or satellite links. For a fair comparison in terms of bandwidth, it has been assumed that the LEO/VLEO satellites should be optical too. After that an algorithm has been developed to determine the best suitable regions for locating the ground station of an optical satellite. Specifically, it computes the degree of cloudiness of a certain geographic region. Given that the determination of such regions demands a large computational burden, it has been parallelized using OpenMP libraries for Python. The Iberian Peninsula, which images were taken by the METEOSAT satellite from EUMETSAT, has been considered as a paradigmatic case of study.

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StarPerf: Characterizing Network Performance for Emerging Mega-Constellations

Cited by 47 publications

References 29 publications

Fractal Rosette: A Stable Space-Ground Network Structure in Mega-Constellation

Fractal Rosette: A Stable Space-Ground Network Structure in Mega-Constellation

ASER: Scalable Distributed Routing Protocol for LEO Satellite Networks

Optical Communications Through Low Orbit Satellites

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