A typical adaptive antenna array based on weight control (AAA-W) with M antennas can suppress M-1 interference signals. In this paper, we propose AAA based on not only weight but also antenna spacing control (AAA-WS) and investigate the basic performance of AAA-WS under the line-of-sight. At first, we show that AAA-WS with two antennas (M=2) can sufficiently suppress more than two interference signals while the desired signal is enhanced. The inherent interference suppression capability of AAA-WS can be determined by the maximum antenna spacing and this fact is exhibited by analysis and Monte Carlo simulations. In addition, we will show that AAA-WS with two antennas can outperform AAA-W with more than two antennas. It is notable that the additional gain in AAAWS compared to AAA-W can be around 18 dB.
Umebayashi Kenta, Kimoto Yoshimasa, Tölli Antti
A4 Article in conference proceedings
Place of publication:
2020 IEEE Wireless Communications and Networking Conference (WCNC)
K. Umebayashi, Y. Kimoto and A. Tölli, “Adaptive Antenna Array with weight and antenna space control,” 2020 IEEE Wireless Communications and Networking Conference (WCNC), Seoul, Korea (South), 2020, pp. 1-6, doi: 10.1109/WCNC45663.2020.9120775
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