MBER Transmit Precoding for the Rank-Deficient MIMO-Aided Internet of Things

K. Satyanarayana, Mohammed El-Hajjar, Ping-Heng Kuo, Alain Mourad, Lajos Hanzo
2018 2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)  
The Internet of Things (IoT) will support a massive number of devices, which will be connected to the wireless network. In the wireless IoT, the base station serves a wide variety of devices in the same time-frequency resource, where it is expected that the number of devices will be greater than the number of base station antennas. This results in a rank-deficient system. In this paper, we propose a minimum bit error ratio (MBER) precoder for rank-deficient MIMO systems in the context of the
more » ... e context of the IoT, where the IoT devices are generally stationary. We invoke the particle swarm optimization (PSO) algorithm for solving the non-linearly constrained MBER problem and we show that the PSO assisted MBER precoder outperforms the conventional zero forcing and linear minimum mean squared error (LMMSE) precoders, which produce an error floor in these challenging rankdeficient scenarios.
doi:10.1109/pimrc.2018.8580898 dblp:conf/pimrc/SatyanarayanaEK18 fatcat:p3zh4skstzavbea4x4defpqkfu