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Interference Management by Harnessing Multi-Domain Resources in Spectrum-Sharing Aided Satellite-Ground Integrated Networks

Xiaojin Ding, Yue Lei, Yulong Zou, Gengxin Zhang, Lajos Hanzo

TL;DR

Performance evaluations demonstrate the superiority of the proposed JMDR-IM scheme in terms of its increased throughput and reduced OP, as well as on long short-term memory based joint autoregressive moving average assisted deep Q network aided power scheduling.

Abstract

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.

Interference Management by Harnessing Multi-Domain Resources in Spectrum-Sharing Aided Satellite-Ground Integrated Networks

TL;DR

Performance evaluations demonstrate the superiority of the proposed JMDR-IM scheme in terms of its increased throughput and reduced OP, as well as on long short-term memory based joint autoregressive moving average assisted deep Q network aided power scheduling.

Abstract

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.
Paper Structure (17 sections, 31 equations, 14 figures, 3 tables)

This paper contains 17 sections, 31 equations, 14 figures, 3 tables.

Table of Contents

  1. Introduction
  2. System Model and Coverage Analysis
  3. System Model
  4. Coverage Analysis
  5. Co-Frequency Exclusion Zone
  6. Problem Formulation
  7. Jointly Utilizing Multi-Domain Resources for Interference Management
  8. Shut-Off and Switching-Based Beam Scheduling
  9. LSTM-ARMA-DQN Based Power Allocation
  10. Outage Probability Analysis for The Proposed JMDR-IM Scheme
  11. NGSO 1 Outage Probability Analysis
  12. NGSO 2 Outage Probability Analysis
  13. BS Outage Probability Analysis
  14. Simulation Results
  15. Conclusions
  16. ...and 2 more sections

Figures (14)

  • Figure 1: A spectrum-sharing SGIN, including a pair of NGSO constellations and multiple terrestrial BSs.
  • Figure 2: Co-frequency interference at a typical NGSO 1 imposed by a spectrum-sharing NGSO 2, where the number of satellites in NGSO 1 and NGSO 2 are 648 and 1584, respectively.
  • Figure 3: Intra-constellation co-frequency interference at a typical NGSO 1 and NGSO 2, wherein the FR4 multibeam and the FR7 multibeam are respectively analyzed, the number of satellites in NGSO 1 and NGSO 2 are respectively 648 and 1584, and the inter-constellation co-frequency interference is neglected.
  • Figure 4: The coverage analysis for an NGSO 1 satellite.
  • Figure 5: Co-frequency exclusion zone analysis.
  • ...and 9 more figures