Channel-bonding CMOS transceiver for 100 Gbps wireless point-to-point links

José Luis Gonzalez-Jimenez,Cédric Dehos,Dominique Noguet,Yves Durand,Rafaelle D’Errico,Antonio De Domenico,Valentin Savin,Alexandre Siligaris,Nicolas Cassiau,Antonio Clemente

doi:10.1186/s13638-020-01741-1

Abstract

5G systems and networks are expected to provide unprecedented data-rate to final users and services, in combination with increased coverage and density. The traffic generated at the edges of the network should be hauled through high capacity data-conveyors. Extremely high data-rate links able to provide optical-fiber like performance in the order of 100 Gbps are required to reduce the cost and increase the flexibility of the network infrastructure deployment. This paper presents a full transceiver architecture based on a channel-bonding radio-frequency front-end operating at millimeter-wave frequencies and digital baseband processing units able to provide such data-rates with a feasible implementation in low-cost CMOS technologies. The baseband section of the receiver includes digital compensation algorithms that allow to cope with some of the radio front-end impairments. The main functionalities of the proposed transceiver architecture are validated in hardware.

Highlights

Several millimeter wave frequency bands located from 24 GHz up to 40 GHz, depending on the country, are currently under consideration according to 3GPP Release 15 on 5th generation (5G)-NR standard, to provide enhanced mobile broadband access services, and for backhaul and fronthaul point-to-point links and for internet to the home deployment
The simulation methodology is as follows: the full transceiver software is run on a PC and the non-idealities parameters are varied in order to investigate their impact on the link-level performance
The highest frequency section of the radio is implemented on a laboratory bench using commercial equipment and the same tests of link-level performance are repeated with a combination of software running the digital signal processing sections of the transceiver and actual equipment implementing the radio section and the propagation channel

Summary

Introduction

Several millimeter wave (mmW) frequency bands located from 24 GHz up to 40 GHz, depending on the country, are currently under consideration according to 3GPP Release 15 on 5G-NR standard, to provide enhanced mobile broadband (eMBB) access services, and for backhaul and fronthaul point-to-point links and for internet to the home deployment.

Results

Conclusion