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Enabling connectivity for tactical networks in mountainous areas by aerial relays

Author

Listed:
  • Salman M. Al-Shehri

    (Swansea University)

  • Pavel Loskot

    (Swansea University)

  • Michael J. Hirsch

    (ISEA TEK LLC)

Abstract

A general modeling framework for realistic performance evaluations of tactical mobile ad-hoc networks deployed in mountainous areas is presented. The framework is easily extensible, and can be eventually automated. It can be also used to generate data for other network simulators. The framework utilizes the freely downloadable high resolution 3D terrain data to define time dependent trajectories of network nodes. The node speeds and directions are linked to the terrain profile which extends the previously proposed mobility models. The path-loss analysis along the node trajectories revealed the need for aerial relays to enable full network connectivity at all times. The network consisting of 5 cluster heads and a single stationary relay is considered as a case study. The relay location and its antenna height are optimized to achieve the line-of-sight connectivity over the whole mission duration. The antenna radiation pattern at the relay is incorporated in the analysis. The resulting star network topology is used by the cluster heads to broadcast their packets to all other cluster heads. Several relaying schemes including the amplify-and-forward and the decode-and-forward relaying are studied together with the go-back-N retransmissions to achieve the reliable data transfer.

Suggested Citation

  • Salman M. Al-Shehri & Pavel Loskot & Michael J. Hirsch, 2019. "Enabling connectivity for tactical networks in mountainous areas by aerial relays," Telecommunication Systems: Modelling, Analysis, Design and Management, Springer, vol. 71(4), pages 561-575, August.
    • Handle: RePEc:spr:telsys:v:71:y:2019:i:4:d:10.1007_s11235-018-0532-3
    DOI: 10.1007/s11235-018-0532-3
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