Spatial multiplexing in the multi-user MIMO downlink allows each user in the system to receive multiple data subchannels simultaneously using the same time and spectral resources. In this paper, a successive iterative optimal algorithm based on signal-to-leakage-and-noise-ratio (SLNR) maximization algorithm is proposed, which make use of the unused subspace of some known users to improve the space gain of the other users and has no strict constraint on transmit and receive antennas numbers. According to the simulation results, the proposed algorithm outperforms the original SLNR algorithm, and has a considerable improvement in the system performance.
with the higher mobility in many developing country, the vehicle volume, vehicle use frequency are rapidly increasing, driving skill training becomes one key factor for vehicle security and use quality. By the comprehensive application of electron, computer, network technology, the supervision, control and guidance can be done to realize the intelligent dynamic management in driving training and standardized test, which promotes the students to obtain the optimal training effect in the possible shortest time, to provide a method to improve the overall driving quality.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.