Throughput of the opportunistic cophasing communication system with multi-beam transmission

To avoid poor efficiency of the power amplifiers, the opportunistic cophasing communication system randomises only the phase of beamforming vector elements, instead of randomising both amplitude and phase. The opportunistic cophasing system with multi-beam transmission is focused. The cophasing matrix with a rotation matrix is first constructed. Then, the upper and lower bounds of asymptotic system throughput are analytically derived, based on the theory of order statistics. Finally, simulation results demonstrate the effectiveness of the proposed method in terms of system throughput.