5G enabled energy efficient full duplex asymmetrical fiber-wireless (FiWi) system incorporating resource adaptation on demand (RAoD) approach

Nitin Kali Raman () and Himanshi Saini
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Nitin Kali Raman: Deenbandhu Chhotu Ram University of Science and Technology
Himanshi Saini: Deenbandhu Chhotu Ram University of Science and Technology

Telecommunication Systems: Modelling, Analysis, Design and Management, 2025, vol. 88, issue 1, No 19, 14 pages

Abstract: Abstract Information and Communication Technology (ICT) systems such as passive optical networks (PON) are among the predominant causes of greenhouse gas emission (GHG) manifested by climate change and also pose economic issues due to high energy consumption. In modern PON systems, fiber-wireless (FiWi) networks have embarked on exhaustive incorporation due to leveraging the advantages of wired and wireless architectures. A2Q1 The 5G enabled FiWi networks have some critical limitations such as lower energy efficiency, high-cost of bidirectional FiWi networks, complete network failure for any faulty optical line terminal (OLT), weather dependent performance of free space optical communication (FSOC), low data rates and restricted reach. In this work, an asymmetrical dual rate such as 12 G/2 G and dual channel supported i.e. distribution fiber (DF) and FSO enabled 24 GHz radio frequency signal (RFS) based 5G FiWi system is presented by integrating resource allocation on demand (RAoD) technique for energy efficiency. Moreover, the cost expenditure (CAPEX) is curtailed with four-wave mixing (FWM) generated upstream frequencies. Results revealed that the presented system is 400% more reliable, ≥ 36% more energy efficient using 61 km feeder fiber (FF) and DF, and 33% better energy saver for 61 km FF + FSO link under clear sky. Further, downstream performances and upstream data transmission are also performed and evaluated in terms of bit error rate (BER). It is discerned that the presented system can cover 61 km downstream and 41 km upstream at 50 Gbps and 24 Gbps full capacity respectively.

Keywords: 5G; RAoD; FiWi; FWM; FSO (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s11235-024-01244-0

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