Adaptive Self-Interference Cancellation for Full-Duplex Wireless\n Communication Systems

2021/04/03 by Elyes Balti, Brian L. Evans, Balti, Elyes +1
Engineering · #Full-Duplex Wireless Communications #Electromagnetic Compatibility and Measurements #Ultra-Wideband Communications Technology

paper · pdf · doi:10.48550/arxiv.2104.01504

Abstract

In this letter, we consider single-cell, single-user systems wherein uplink\nand downlink user equipment communicate with a full-duplex relay. Due to the\nnear-far problem, the self-interference (SI) can be 100-1000x the received\nsignal power. In this context, we consider the adaptive Least Mean Squares\n(LMS) algorithm to estimate the SI channel and then subtract the SI from the\ndesired received signal before the analog-to-digital converter (ADC). We\nmeasure the robustness of this technique in terms of bit error rate (BER) and\nspectral efficiency.\n

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