University of Waterloo
200 University Ave W, Waterloo, ON
N2L 3G1
Phone: (519) 888-4567
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Kimberley Brynn King
Digitally-Assisted RF-Analog Self-Interference Cancellation For Wideband Full-Duplex Radios
Slim Boumaiza
This thesis presents a new approach to cancel Self-Interference in full-duplex radios. By augmenting minimum complexity RF-analog interference cancellation hardware that uses a radio frequency (RF) vector multiplier with the flexibility and effectiveness of a digital rational function finite impulse response filter, the proposed approach allowed for excellent cancellation performance over a wide modulation bandwidth. The parameters of the proposed rational function finite impulse response filter are identified using a deterministic and single iteration algorithm. This algorithm is devised by exploiting a simplified baseband equivalent behaviour model of the front-end of the full-duplex radio. The hardware proof-of-concept prototype, built using off-the-shelf RF-analog circuits, demonstrated a self-interference cancellation of minimum 50~dB, and 40~dB for various digitally modulated test signals with modulation bandwidths of 20~MHz and 40-120~MHz respectively.
University of Waterloo
200 University Ave W, Waterloo, ON
N2L 3G1
Phone: (519) 888-4567
Staff and Faculty Directory
Contact the Department of Electrical and Computer Engineering
The University of Waterloo acknowledges that much of our work takes place on the traditional territory of the Neutral, Anishinaabeg and Haudenosaunee peoples. Our main campus is situated on the Haldimand Tract, the land granted to the Six Nations that includes six miles on each side of the Grand River. Our active work toward reconciliation takes place across our campuses through research, learning, teaching, and community building, and is centralized within our Indigenous Initiatives Office.