A Novel Networking Scheme for Mobile Communication Based on Phased Array Antenna

Abstract

The increasing demand of mobile multimedia services has motivated the use of new communication technologies that could improve the utilization of spectrum resource. In this paper, we study a mobile communication network that adopts phased array technology to improve the reuse of spatial spectrum resource, in which each base station (BS) communicates with multiple mobile users (MUs) simultaneously in the same frequency channel by applying beamforming. We understand from analysis that in such a network, the parallel communications supported by phased array technology could produce interference to each other. Moreover, the interference level largely depends on the angles of beams. We then propose a novel networking method that let a MU select a proper BS according to both distance, which largely decides receiving power, and the beam angle, which is the main factor that decides co-channel interference, as compared to conventional networking scheme that requests a MU to select a proper BS simply according to distance. Both analysis results and simulation results show that the proposed scheme obtains advantage over the conventional scheme in terms of the network throughput.