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Air-to-ground NOMA systems for the “Internet-Above-the-Clouds”

Air-to-ground NOMA systems for the “Internet-Above-the-Clouds”
Air-to-ground NOMA systems for the “Internet-Above-the-Clouds”
The provision of high-speed Internet access in aircraft is mainly supported by satellite links at the time of writing, aided by links between the aircraft and the ground stations. It is anticipated that Air-To-Ground (A2G) communications between en-route aircraft and the ground stations will have a major role in providing the required Quality of Service, while complying with the low latency requirements of next generation communications. Non-Orthogonal Multiple Access (NOMA) systems will increase the system throughput by allowing multiple aircraft to simultaneously communicate with the ground station, while requiring fewer resource slots. Due to the limited number of orthogonal resources and the high number of aircraft, interference is expected to be present. In this contribution, we employ beamforming based on the Angle of Arrival (AoA) of the signals and antenna arrays having multiple antenna elements, as well as a novel interference-exploiting Sphere Decoder (iSD), which detects the signals of the supported users, while beneficially exploiting those of the interfering users. We show that an improved performance may be achieved in both Hard-Input Hard-Output (HIHO) scenarios, as well as in iterative Soft-Input Soft-Output (SISO) scenarios, when compared to the conventional Sphere Decoder, the Maximum Likelihood (ML) detector and the Maximum A posteriori Probability (MAP) detector. We also characterize the complexity of the proposed receiver and evaluate its performance with the aid of BER simulations and EXtrinsic Information Transfer (EXIT) charts.
2169-3536
Botsinis, Panagiotis
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Alanis, Dimitrios
8ae8ead6-3974-4886-8e17-1b4bff1d94e0
Xu, Chao
5710a067-6320-4f5a-8689-7881f6c46252
Babar, Zunaira
23ede793-1796-449d-b5aa-93a297e5677a
Chandra, Daryus
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Ng, Soon Xin
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
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Botsinis, Panagiotis
d7927fb0-95ca-4969-9f8c-1c0455524a1f
Alanis, Dimitrios
8ae8ead6-3974-4886-8e17-1b4bff1d94e0
Xu, Chao
5710a067-6320-4f5a-8689-7881f6c46252
Babar, Zunaira
23ede793-1796-449d-b5aa-93a297e5677a
Chandra, Daryus
a2f091a8-9772-4633-8e3b-d3220b10a2ec
Ng, Soon Xin
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Botsinis, Panagiotis, Alanis, Dimitrios, Xu, Chao, Babar, Zunaira, Chandra, Daryus, Ng, Soon Xin and Hanzo, Lajos (2018) Air-to-ground NOMA systems for the “Internet-Above-the-Clouds”. IEEE Access. (doi:10.1109/ACCESS.2018.2867093).

Record type: Article

Abstract

The provision of high-speed Internet access in aircraft is mainly supported by satellite links at the time of writing, aided by links between the aircraft and the ground stations. It is anticipated that Air-To-Ground (A2G) communications between en-route aircraft and the ground stations will have a major role in providing the required Quality of Service, while complying with the low latency requirements of next generation communications. Non-Orthogonal Multiple Access (NOMA) systems will increase the system throughput by allowing multiple aircraft to simultaneously communicate with the ground station, while requiring fewer resource slots. Due to the limited number of orthogonal resources and the high number of aircraft, interference is expected to be present. In this contribution, we employ beamforming based on the Angle of Arrival (AoA) of the signals and antenna arrays having multiple antenna elements, as well as a novel interference-exploiting Sphere Decoder (iSD), which detects the signals of the supported users, while beneficially exploiting those of the interfering users. We show that an improved performance may be achieved in both Hard-Input Hard-Output (HIHO) scenarios, as well as in iterative Soft-Input Soft-Output (SISO) scenarios, when compared to the conventional Sphere Decoder, the Maximum Likelihood (ML) detector and the Maximum A posteriori Probability (MAP) detector. We also characterize the complexity of the proposed receiver and evaluate its performance with the aid of BER simulations and EXtrinsic Information Transfer (EXIT) charts.

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Air-To-Ground NOMA Systems for the Internet-Above-the-Clouds - Accepted Manuscript
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Accepted/In Press date: 21 August 2018
e-pub ahead of print date: 24 August 2018

Identifiers

Local EPrints ID: 423230
URI: http://eprints.soton.ac.uk/id/eprint/423230
ISSN: 2169-3536
PURE UUID: 21bb6257-461c-410e-8f84-f307dfe7952d
ORCID for Dimitrios Alanis: ORCID iD orcid.org/0000-0002-6654-1702
ORCID for Chao Xu: ORCID iD orcid.org/0000-0002-8423-0342
ORCID for Zunaira Babar: ORCID iD orcid.org/0000-0002-7498-4474
ORCID for Daryus Chandra: ORCID iD orcid.org/0000-0003-2406-7229
ORCID for Soon Xin Ng: ORCID iD orcid.org/0000-0002-0930-7194
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 19 Sep 2018 16:30
Last modified: 20 Jul 2019 01:26

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Contributors

Author: Panagiotis Botsinis
Author: Dimitrios Alanis ORCID iD
Author: Chao Xu ORCID iD
Author: Zunaira Babar ORCID iD
Author: Daryus Chandra ORCID iD
Author: Soon Xin Ng ORCID iD
Author: Lajos Hanzo ORCID iD

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