Resource Allocation for Millimeter-Wave Train-Ground Communications in <?brk?>High-Speed Railway Scenarios

With the development of wireless communication, higher requirements arise for train-ground communications in high-speed railway (HSR) scenarios. The millimeter-wave (mm-wave) frequency band with rich spectrum resources can provide users HSR scenarios high performance broadband multimedia services, while full-duplex (FD) technology has become mature. In this paper,we study communication system mobile relays (MRs) mounted on rooftop train and operating FD mode. We formulate a nonlinear programming problem to maximize network capacity by allocation resources. Then, we develop sequential quadratic (SQP) algorithm based Lagrange function solve bandwidth optimization fortrack-side base station (BS) MRs mm-wave system. Extensive simulation results demonstrate that proposed SQP effectively achieve being robust residual self-interference (SI).