University of Oulu

Saud MS, Ahmed I, Kumpuniemi T, Katz M. Reconfigurable optical‐radio wireless networks: Meeting the most stringent requirements of future communication systems. Trans Emerging Tel Tech. 2019;30:e3562. https://doi.org/10.1002/ett.3562

Reconfigurable optical‐radio wireless networks : meeting the most stringent requirements of future communication systems

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Author: Saud, Muhammad Saad1; Ahmed, Iqrar1; Kumpuniemi, Timo1;
Organizations: 1Centre for Wireless Communications, University of Oulu, Oulu, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe201902195412
Language: English
Published: John Wiley & Sons, 2019
Publish Date: 2020-01-31
Description:

Abstract

In this paper, we propose a reconfigurable optical‐radio wireless network characterized by high flexibility and performance. The hybrid network can be dynamically configured, adapting itself to the changing requirements of users or operating environments, dynamics of the transmission medium, and availability of resources. First, the basic concept, system architecture, and key operating modes are introduced. Possible operating scenarios and their relationship to the operating modes are discussed. Then, a practical implementation of the hybrid network is introduced, describing the network components, architecture, modulation scheme, and implementation technologies. Implementation was carried out using mostly off‐the‐shelf components and universal software radio peripheral blocks. Particular attention has been put in implementing a fast handover mechanism between modes, an essential requirement for seamless network reconfiguration. Network performance is evaluated and different switching approaches are compared. The paper demonstrates practically the proposed concept based on dynamic system reconfiguration. For the implementation, a mode switching algorithm was developed making decisions based on the quality of the wireless channels. The system was tested with live video packets transmitted through the network. System performance was assessed through data throughput and packet loss measured for different modulation parameters. The proposed concept, essentially a software‐defined hybrid network, is flexible and makes efficient use of radio resources. Moreover, the network has the potential to achieve high performance. All these characteristics make reconfigurable optical‐radio networks an attractive candidate for fifth generation and beyond.

The text includes a few mistakes, e.g. one erroneous figure (9). Please see the version of record at https://doi.org/10.1002/ett.3562.

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Series: Transactions on emerging telecommunications technologies
ISSN: 2161-5748
ISSN-E: 2161-3915
ISSN-L: 2161-5748
Volume: 30
Issue: 2
DOI: 10.1002/ett.3562
OADOI: https://oadoi.org/10.1002/ett.3562
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Subjects:
Funding: Authors would like to thank the Academy of Finland's support in the project HERONET, where this research work was mainly carried out. In addition, the support from the Academy of Finland 6Genesis Flagship Project was warmly acknowledged.
Copyright information: © 2019 John Wiley & Sons, Ltd. This is the peer reviewed version of the following article: Saud MS, Ahmed I, Kumpuniemi T, Katz M. Reconfigurable optical‐radio wireless networks: Meeting the most stringent requirements of future communication systems. Trans Emerging Tel Tech. 2019;30:e3562. https://doi.org/10.1002/ett.3562, which has been published in final form at https://doi.org/10.1002/ett.3562. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.