Xu He, Yuan Ding* and Xingwang Li Pages 322 - 330 ( 9 )
Background: The multiuser scenarios using the recently proposed wireless communication scheme, namely Beam Index Modulation (BIM), are investigated in this paper.
Methods: Both transmitter node and multiple receiver nodes are equipped with analogue beamforming networks, transforming physical wireless propagation channels to virtue channels in beam domain.
Results: Under the non-line-of-sight (nLoS) multi-scattered channel conditions, which are likely the cases for some future wireless communication systems operating at higher frequency bands.
Conclusion: It has been proved, both through simulations and experiment, at 10 GHz in an indoor environment, that the proposed BIM is able to enhance the system performance at high Signal-to-Noise Ratio (SNR) scenarios, with regard to the sum spectral efficiency, with only a single Radio Frequency (RF) chain.
Analogue beamforming, beam index modulation, index modulation, multiuser, spatial modulation, wireless communications.
The School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, The Institute of Sensors, Signals and Systems (ISSS), Heriot-Watt University, Edinburgh EH14 4AS, Scotland, The School of Physics and Electronic Information Engineering, Henan Polytechnic University, Henan 454000