An Orbital Angular Momentum-Based In-Band Full-Duplex Communication System and Its Mode Selection

作者：Zhang, Zhaoyang^*; Yuan, Yuqing; Cang, Ji; Wu, Huayang; Zhang, Xianmin

来源：IEEE Communications Letters, 2017, 21(5): 1183-1186.

DOI：10.1109/LCOMM.2017.2660478

• Orbit angular momentum
• full duplex communications

An orbital angular momentum (OAM)-based in-band full-duplex radio system for line-of-sight communications is studied for the first time, where the OAM beams work as the carriers of the bidirectional transmission. The transmit and receive antennas are assumed to be placed along a common beam axis with a tilt angle that induces a misaligned reception, and the self-interferences are modeled as the near-end cross-talks caused by the parasitic harmonic components within the impure transmitting OAM spectrums. Based on this model, we obtain the optimal OAM eigenmode pair, that maximizes the system sum rate when the self-interferences dominate the noise or vice versa. The results are further validated by simulation.

• 出版日期2017-5
• 单位浙江大学