A Study on Applying Layered Division Multiplexing for Next Generation Digital Terrestrial Broadcasting

Abstract

Toward the migration to a next-generation system, we are conducting research on digital terrestrial broadcasting. About hierarchical transmission, system to transmit multi services with different robustness, FDM is considered to apply next-generation system. To improve the transmission capacity of next-generation system, we are studying LDM adopt only for mobile reception band, and considered the use case of the system. In this paper, mobile reception performance of hierarchical transmission system combined FDM with LDM had been calculated by computer simulation to evaluate the feasibility. Results show that adopting space diversity reception systems can improve the transmission performance of LDM and we confirmed that both layer multiplexed by LDM could provide mobile service.