Interference Management by Harnessing Multi-Domain Resources in Spectrum-Sharing Aided Satellite-Ground Integrated Networks
CoRR(2023)
摘要
A spectrum-sharing satellite-ground integrated network is conceived,
consisting of a pair of non-geostationary orbit (NGSO) constellations and
multiple terrestrial base stations, which impose the co-frequency interference
(CFI) on each other. The CFI may increase upon increasing the number of
satellites. To manage the potentially severe interference, we propose to rely
on joint multi-domain resource aided interference management (JMDR-IM).
Specifically, the coverage overlap of the constellations considered is
analyzed. Then, multi-domain resources - including both the beam-domain and
power-domain - are jointly utilized for managing the CFI in an overlapping
coverage region. This joint resource utilization is performed by relying on our
specifically designed beam-shut-off and switching based beam scheduling, as
well as on long short-term memory based joint autoregressive moving average
assisted deep Q network aided power scheduling. Moreover, the outage
probability (OP) of the proposed JMDR-IM scheme is derived, and the asymptotic
analysis of the OP is also provided. Our performance evaluations demonstrate
the superiority of the proposed JMDR-IM scheme in terms of its increased
throughput and reduced OP.
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关键词
Multi-domain resources allocation,non-geostationary orbit constellation,outage probability,spectrum sharing,space-ground integrated network
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