Large load-controlled multiple-active multiple-passive antenna arrays: Transmit beamforming and multi-user precoding. Ntougias, K., Ntaikos, D., Gizas, B., Papageorgiou, G. K., & Papadias, C. B. In 2017 25th European Signal Processing Conference (EUSIPCO), pages 1224-1228, Aug, 2017.
Large load-controlled multiple-active multiple-passive antenna arrays: Transmit beamforming and multi-user precoding [pdf]Paper  doi  abstract   bibtex   
In this work, we present the design of a novel large load-controlled multiple-active multiple-passive (LC-MAMP) antenna array that operates at 19.25 GHz. In addition, we describe a method that enables us to perform robust, low-complexity, arbitrary channel-dependent precoding with such arrays as well as a communication protocol that limits the computational complexity associated with beam tracking and dynamic load computation in static or low-mobility scenarios, such as indoor wireless access or wireless terrestrial backhaul use cases. Finally, we study the application of various user- and symbol-level precoding schemes in coordinated multiple-input multiple-output setups equipped with LC-MAMP arrays and we evaluate their performance through numerical simulations using a realistic channel model. The simulation results show that LC-MAMPs outperform equivalent digital antenna arrays.
@InProceedings{8081504,
  author = {K. Ntougias and D. Ntaikos and B. Gizas and G. K. Papageorgiou and C. B. Papadias},
  booktitle = {2017 25th European Signal Processing Conference (EUSIPCO)},
  title = {Large load-controlled multiple-active multiple-passive antenna arrays: Transmit beamforming and multi-user precoding},
  year = {2017},
  pages = {1224-1228},
  abstract = {In this work, we present the design of a novel large load-controlled multiple-active multiple-passive (LC-MAMP) antenna array that operates at 19.25 GHz. In addition, we describe a method that enables us to perform robust, low-complexity, arbitrary channel-dependent precoding with such arrays as well as a communication protocol that limits the computational complexity associated with beam tracking and dynamic load computation in static or low-mobility scenarios, such as indoor wireless access or wireless terrestrial backhaul use cases. Finally, we study the application of various user- and symbol-level precoding schemes in coordinated multiple-input multiple-output setups equipped with LC-MAMP arrays and we evaluate their performance through numerical simulations using a realistic channel model. The simulation results show that LC-MAMPs outperform equivalent digital antenna arrays.},
  keywords = {antenna arrays;array signal processing;channel coding;computational complexity;indoor radio;microwave antennas;MIMO communication;mobile antennas;mobility management (mobile radio);precoding;protocols;wireless channels;arbitrary channel-dependent precoding;computational complexity;dynamic load computation;low-mobility scenarios;indoor wireless access;wireless terrestrial backhaul use cases;symbol-level precoding schemes;LC-MAMP arrays;equivalent digital antenna arrays;load-controlled multiple-active multiple-passive antenna arrays;communication protocol;user-level precoding schemes;channel model;frequency 19.25 GHz;Antenna arrays;Precoding;Interference;Loaded antennas;Wireless communication;Signal to noise ratio;Transmitting antennas;Load-controlled multiple-active multiple-passive arrays (LC-MAMP);coordinated multi-cell multiple-input multiple-output (Co-MC-MIMO);constructive-interference zero-forcing beamforming (CI-ZFBF);centimetre-wave (cm-wave) access;terrestrial backhaul},
  doi = {10.23919/EUSIPCO.2017.8081504},
  issn = {2076-1465},
  month = {Aug},
  url = {https://www.eurasip.org/proceedings/eusipco/eusipco2017/papers/1570347677.pdf},
}
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