Asymptotic Performance of Broadcast Services in IEEE 802.16e with CSTD

The IEEE 802.16e system for multicast and broadcast service (MBS) is further investigated over [4]. It is shown that 802.16e networks can exploit advanced transmission and flexible resource allocation techniques to deliver high- performance MBS delivery within the constraints of the WiMAXRelease 1 system profile. A novel per-subcarrier SINR model for single frequency network (SFN) operation is proposed for the scenario in which cyclic shift transmit diversity (CSTD) - a form of delay diversity - is applied at the base station. The utility of CSTD for 802.16e MBS delivery in term of rate and coverage enhancement is investigated in detail based on the exponential effective-SINR mapping (EESM) for frame error rate (FER) prediction. In addition, an asymptotic effective SINR approach is developed for low- complexity approximation of the EESM FER mapping, and the proposed approximation is shown to be accurate for MBS simulation, while significantly reducing simulation effort.