電子情報通信学会総合大会講演要旨
B-19-15
A Study on Orbital Angular Momentum-Based Wireless Communication
○Doohwan Lee(NTT)・Theerat Sakdejayont(The Univ. of Tokyo)・Hirofumi Sasaki・Hiroyuki Fukumoto・Tadao Nakagawa(NTT)
Recently, wireless communication using OAM (Orbital Angular
Momentum) has drawn much attention as an emerging candidate of
5G/B5G technology. OAM is a physical property of electro-magnetic
waves that are characterized by a helical phase front in the propagation
direction. Since the characteristic can be used to create multiple
orthogonal channels, wireless communication using OAM can increase
radio spectrum efficiency and expand the capacity of the scarce radio
spectrum. To explore these possibilities, in the work reported in this paper we investigated the performance of modulation/demodulation algorithms of the technology. This work enabled us to clarify the effect of modedependent power attenuation and consider a simple method for precompensating transmission power. In doing so we generated OAM signals by