Paper Info
Title
Simultaneous Downlink Data Transmission And Uplink Channel Estimation With Reduced Complexity Full Duplex Mimo Radios
Abstract
In this paper, we study Full Duplex (FD) Multiple Input Multiple-Output (MIMO) radios for simultaneous data communication and control information exchange. Capitalizing on a recently proposed FD MIMO architecture combining digital transmit and receive beamforming with reduced complexity multi-tap analog Self-Interference (SI) cancellation, we propose a novel transmission scheme exploiting channel reciprocity for joint downlink beamformed information data communication and uplink channel estimation through training data transmission. We adopt a general model for pilot-assisted channel estimation and present a unified optimization framework for all involved FD MIMO design parameters. Our representative Monte Carlo simulation results for an example algorithmic solution for the beamformers as well as for the analog and digital SI cancellation demonstrate that the proposed FD-based joint communication and control scheme provides 1.4x the downlink rate of its half duplex counterpart. This performance improvement is achieved with 50% reduction in the hardware complexity for the analog canceller than conventional FD MIMO architectures with fully connected analog cancellation.
Year
DOI
Venue
2020
10.1109/ICCWorkshops49005.2020.9145344
2020 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS WORKSHOPS (ICC WORKSHOPS)
Keywords
DocType
ISSN
Full duplex, MIMO, joint communication and control, channel estimation, optimization, hardware complexity
Conference
2164-7038
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Islam Md Atiqul100.34
George C. Alexandropoulos275945.84
Besma Smida37719.63