Full-Duplex Transceiver System Calculations: Analysis of ADC and Linearity Challenges

By Dani Korpi, Taneli Riihonen, Ville Syrjälä, Lauri Anttila, Mikko Valkama, Risto Wichman. IEEE Transactions on Wireless Communications, 2014

301 citations recorded by the source corpus.

Despite the intensive recent research on wireless single-channel full-duplex communications, relatively little is known about the transceiver chain nonidealities of full-duplex devices. In this paper, the effect of nonlinear distortion occurring in the transmitter power amplifier (PA) and the receiver chain is analyzed, beside the dynamic range requirements of analog-to-digital converters (ADCs). This is done with detailed system calculations, which combine the properties of the individual electronics components to jointly model the complete transceiver chain, including self-interference cancellation. They also quantify the decrease in the dynamic range for the signal of interest caused by self-interference at the analog-to-digital interface. Using these system calculations, we provide comprehensive numerical results for typical transceiver parameters. The analytical results are also confirmed with full waveform simulations. We observe that the nonlinear distortion produced by the transmitter PA is a significant issue in a full-duplex transceiver and, when using cheaper and less linear components, also the receiver chain nonlinearities become considerable. It is also shown that, with digitally intensive self-interference cancellation, the quantization noise of the ADCs is another significant problem.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/a16cdcdc98c81c6b95ffc4ef7f0cd0f3d2f9ad5d

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In Electrical and Electronic Engineering

Citations in the corpus

Widely Linear Digital Self-Interference Cancellation in Direct-Conversion Full-Duplex Transceiver (2014, background): “The nonlinearity effects of the receiver chain amplifiers are not taken into account in this paper, as they are insignificant in comparison to the other distortion components under typical circumstances [29].”
A Survey of In-Band Full-Duplex Transmission: From the Perspective of PHY and MAC Layers (2015, background): “11Due to the large power of the SI, the non-linearities of LNA degrade the performance of the self-IC [50].”
Dual-Polarized, Differential Fed Microstrip Patch Antennas With Very High Interport Isolation for Full-Duplex Communication (2017, background): “For instance, the received noise power (PN ) for receiver with 50 MHz bandwidth (BW) and 17 dB noise figure can be determined as [2]”
In-Band Full-Duplex Wireless: Challenges and Opportunities (2013, background): “mentally demonstrated successful bidirectional IBFD designs, a different body of recent work [6], [88]–[93] has focused on characterizing the bottlenecks of practical IBFD architectures”