Full Non-Orthogonal Integration of Unicast and Single Cell Broadcast in LTE-Advanced
This paper proposes a new full non-orthogonal integration scheme for unicast and broadcast data streams in future OFDM system, in which broadcast is deployed in single cell scenario. It is firstly analyzed why today's research results of the integration of unicast and broadcast in Single Frequency Network (SFN) manner cannot work in single cell deployment scenario. By adjusting the modulation constellation map of today's integration system, the proposed scheme, called crossed-HM, works well in the discussed scenario. System level performances are investigated in this paper, which show that the proposed scheme has 40% gain against the discussed SFN integration scheme in terms of effective frequency efficiency. Performances for single cell broadcast without integration to unicast are shown for comparison.