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Analogue radio over fiber aided MIMO design for learning assisted adaptive C-RAN downlink

Analogue radio over fiber aided MIMO design for learning assisted adaptive C-RAN downlink
Analogue radio over fiber aided MIMO design for learning assisted adaptive C-RAN downlink
Cloud/Centralised radio access network (C-RAN) architecture is recognised as a strong candidate for the next generation wireless standards, potentially reducing the total cost of ownership (TCO). Spatial modulation (SM) is a cost-effective multiple-input-multiple-output (MIMO) solution, where only a single-RF chain is required for transmission. In this context, we propose an analogue radio over fiber (A-RoF) aided MIMO techniques for a learning assisted adaptive C-RAN system, where SM combined with space-time block coding (STBC) is optically processed using optical index in the central unit (CU) of the C-RAN, which also is capable of tuning the connected remote radio heads (RRHs). Furthermore, to improve the spectral efficiency, we invoke our proposed flexible C-RAN architecture for implementing learning assisted transceiver adaptation, where the number of RRHs connected to a single user and its modulation techniques employed are controlled using the K-nearest neighbourhood (KNN) algorithm. Simulation results show that the BER performance operating with A-RoF is just marginally degraded compared to that operating without A-RoF, while benefiting from the energy- and cost-efficient C-RAN design. Moreover, we show that the learning assisted adaptation is capable of outperforming the classic threshold-based adaptation in terms of the achievable rate.
C-RAN, RoF, Machine Learning
2169-3536
21359-21371
Li, Yichuan
b050e1ec-518a-4e50-9b49-6c9b36556d0b
Katla, Satyanarayana
f3436daa-e5da-4b3c-ab4b-ad07a0cef99a
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Li, Yichuan
b050e1ec-518a-4e50-9b49-6c9b36556d0b
Katla, Satyanarayana
f3436daa-e5da-4b3c-ab4b-ad07a0cef99a
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Li, Yichuan, Katla, Satyanarayana, El-Hajjar, Mohammed and Hanzo, Lajos (2019) Analogue radio over fiber aided MIMO design for learning assisted adaptive C-RAN downlink. IEEE Access, 7, 21359-21371. (doi:10.1109/ACCESS.2019.2897922).

Record type: Article

Abstract

Cloud/Centralised radio access network (C-RAN) architecture is recognised as a strong candidate for the next generation wireless standards, potentially reducing the total cost of ownership (TCO). Spatial modulation (SM) is a cost-effective multiple-input-multiple-output (MIMO) solution, where only a single-RF chain is required for transmission. In this context, we propose an analogue radio over fiber (A-RoF) aided MIMO techniques for a learning assisted adaptive C-RAN system, where SM combined with space-time block coding (STBC) is optically processed using optical index in the central unit (CU) of the C-RAN, which also is capable of tuning the connected remote radio heads (RRHs). Furthermore, to improve the spectral efficiency, we invoke our proposed flexible C-RAN architecture for implementing learning assisted transceiver adaptation, where the number of RRHs connected to a single user and its modulation techniques employed are controlled using the K-nearest neighbourhood (KNN) algorithm. Simulation results show that the BER performance operating with A-RoF is just marginally degraded compared to that operating without A-RoF, while benefiting from the energy- and cost-efficient C-RAN design. Moreover, we show that the learning assisted adaptation is capable of outperforming the classic threshold-based adaptation in terms of the achievable rate.

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A-RoF Leanrning - Accepted Manuscript
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More information

Accepted/In Press date: 3 February 2019
e-pub ahead of print date: 6 February 2019
Keywords: C-RAN, RoF, Machine Learning

Identifiers

Local EPrints ID: 428267
URI: https://eprints.soton.ac.uk/id/eprint/428267
ISSN: 2169-3536
PURE UUID: 102df53a-037b-4bff-893e-857c85c08677
ORCID for Yichuan Li: ORCID iD orcid.org/0000-0003-2078-0983
ORCID for Satyanarayana Katla: ORCID iD orcid.org/0000-0002-5411-3962
ORCID for Mohammed El-Hajjar: ORCID iD orcid.org/0000-0002-7987-1401
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 19 Feb 2019 17:30
Last modified: 20 Jul 2019 01:27

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