Wake-Up Receiver with Equal-Gain Antenna Diversity†
AbstractSmall scale fading signals resulting from multipath propagation can cause signal strength variations in the range of several dB. Resulting from the fluctuating signal strengths, the wake-up packet reception rate can decrease significantly. Using antenna diversity can greatly mitigate these effects. This article presents a novel wireless sensor node with wake-up receiver that uses an equal-gain diversity method with two antennas in the wake-up path. Summation of the two diversity branch signals is done after the passive demodulation of the incoming signals. As a result, the wireless sensor node requires almost no additional active parts that would increase power consumption. Furthermore, we demonstrate experimentally the improved wake-up robustness and reliability achieved by this diversity technique in a multipath environment. View Full-Text
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Kumberg, T.; Tannhaeuser, R.; Reindl, L.M. Wake-Up Receiver with Equal-Gain Antenna Diversity. Sensors 2017, 17, 1961.
Kumberg T, Tannhaeuser R, Reindl LM. Wake-Up Receiver with Equal-Gain Antenna Diversity. Sensors. 2017; 17(9):1961.Chicago/Turabian Style
Kumberg, Timo; Tannhaeuser, Robert; Reindl, Leonhard M. 2017. "Wake-Up Receiver with Equal-Gain Antenna Diversity." Sensors 17, no. 9: 1961.