Title: An adaptive algorithm for performance enhancement of long-haul MMW/RoF system for next generation mobile communications

Authors: Nguyen Van Tuan; Nguyen Van Dien; Nguyen Dong Nhat; Tran The Son; Duy-Tuan Dao; Nguyen Khanh Toan; Nguyen Tan Hung

Addresses: The University of Danang – University of Science and Technology, Vietnam ' The University of Danang – Advanced Institute of Science and Technology, Vietnam; The University of Danang – University of Science and Technology, Vietnam; Industrial University of Ho Chi Minh City, Vietnam ' Czech Technical University in Prague, Czech Republic ' Vietnam-Korea University of Information and Communication Technology, Vietnam ' The University of Danang – University of Science and Technology, Vietnam ' The University of Danang – University of Science and Technology, Vietnam ' The University of Danang – Advanced Institute of Science and Technology, Vietnam; The University of Danang – University of Science and Technology, Vietnam

Abstract: Radio over fibre (RoF) and millimetre wave (MMW) are regarded as the most promising solutions to provide high-capacity, long-distance data transport between base stations and core network in the future heterogeneous radio access networks that support both cloud and edge computing paradigms. In this paper, we propose an adaptive algorithm to optimise and determine a set of important link parameters for a MMW/RoF integrated system based on 10 Gb/s QPSK modulation format and heterodyne coherent detection. We develop analytical models of main components and derive a closed-form expression of system performance such as Q, SNR and BER. The adaptive algorithm is successfully applied to determine important link parameters including laser power, local oscillator power, optical amplifier location and gains so that the overall performance could be enhanced at an acceptable level corresponding to the varied propagation length from 200 km to 300 km. BERs of well below the 10^-9.

Keywords: radio access networks; RANs; radio over fibre; RoF; millimetre wave; MMW; advanced modulation formats.

DOI: 10.1504/IJAHUC.2022.124557

International Journal of Ad Hoc and Ubiquitous Computing, 2022 Vol.40 No.4, pp.267 - 276

Received: 08 Apr 2021
Accepted: 15 Aug 2021
Published online: 28 Jul 2022 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article