Robust and High Throughput Beam Tracking for mmWave Communication Systems

Millimeter wave (mmWave) communication has been considered as a promising communication system with large unlicensed spectrum resource available. In mmWave communication systems, in order to overcome severe path loss, beamforming is required to form narrow beam and generate high directional gain. This will result in frequent beam handoff and severe link blockage, especially in mobile scenarios, and thus greatly impact the Quality of Experience (QoE). However, existing beam tracking schemes only pursue network throughput maximization without considering beam handoff and link robustness. To balance both performances, this paper proposes a robust and high throughput beam tracking scheme in mobile mmWave communication systems. It obtains optimal beam coverage to serve User Equipment (UE) with low beam handoff probability, and meanwhile provides high overall throughput. Simulations show that the proposed robust and high throughput beam tracking can provide a higher throughput and a lower beam handoff probability than the other schemes.