2020/02/26 by George C. Alexandropoulos, Alexandropoulos, George C., Md Atiqul Islam +3 · 1 citation
Engineering · #Antenna Design and Analysis #Electromagnetic Compatibility and Measurements #FOS: Computer and information sciences #FOS: Electrical engineering #Full-Duplex Wireless Communications #Information Theory (cs.IT) #Signal Processing (eess.SP) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.2002.11837
openalex publication_date 2020/02/26 · openalex created_date 2022/07/26 · openalex updated_date 2026/07/28
Although the hardware complexity of the analog self-interference canceller in\nfull duplex Multiple Input Multiple Output (MIMO) designs does not necessarily\nscale with the number of transceiver antennas, exploiting the benefits of\nanalog cancellation in massive MIMO systems with hundreds of antenna elements\nis still quite impractical. Hybrid Analog and Digital (A/D) beamforming\narchitectures have been lately considered as a candidate technology for\nrealizing massive MIMO transceivers with very large number of antenna elements,\nbut with much fewer numbers of Radio Frequency (RF) chains. In this paper, we\npresent a novel architecture for full duplex hybrid A/D beamforming\ntransceivers including multi-tap analog cancellation with reduced number of\ntaps and simple multiplexers for efficient signal routing among the transceiver\nRF chains. Capitalizing on the proposed transceiver architecture, we present a\njoint design of analog cancellation and A/D beamforming with the objective to\nmaximize the achievable full duplex rate performance. Representative millimeter\nwave simulation results demonstrate the effectiveness of the proposed\narchitecture and algorithmic framework for enabling simultaneous uplink and\ndownlink communications with reduced complexity analog self-interference\ncancellation.\n