Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Should We Worry About Interference in Emerging Dense NGSO Satellite
  Constellations?   Many satellite operators are planning to deploy NGSO systems for broadband
communication services in the Ku-, Ka-, and V-band, where some of them have
already launched. Consequently, new challenges are expected for inter-system
satellite coexistence due to the increased interference level and the
complexity of the interactions resulting from the heterogeneity of the
constellations. This is especially relevant for the Ku-band, where the NGSO
systems are most diverse and existing GSO systems, which often support critical
services, must be protected from interference. It is thus imperative to
evaluate the impact of mutual inter-system interference, the efficiency of the
basic interference mitigation techniques, and whether regulatory intervention
is needed for the new systems. We conduct an extensive study of inter-satellite
coexistence in the Ku-band, where we consider all recently proposed NGSO and
some selected GSO systems. Our throughput degradation results suggest that
existing spectrum regulation may be insufficient to ensure GSO protection from
NGSO interference, especially due to the high transmit power of the LEO Kepler
satellites. This also results in strong interference towards other NGSO
systems, where traditional interference mitigation techniques like look-aside
may perform poorly. Specifically, look-aside can be beneficial for large
constellations, but detrimental for small constellations. Furthermore, we
confirm that band-splitting among satellite operators significantly degrades
throughput, also for the Ku-band. Our results overall show that the complexity
of the inter-satellite interactions for new NGSO systems is too high to be
managed via simple interference mitigation techniques. This means that more
sophisticated engineering solutions, and potentially even more strict
regulatory requirements, will be needed to ensure coexistence in emerging,
dense NGSO deployments.

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The categories of this paper are: funct-an
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The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
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The categories of this paper are: q-alg
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The categories of this paper are: stat
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The categories of this paper are: bayes-an
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The categories of this paper are: comp-gas
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The categories of this paper are: supr-con
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The categories of this paper are: plasm-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-th