 reduce the control overhead. The MAC signaling and dynamic control overhead based on the Persistent Allocation A-MAP IE for initial transmissions is modeled; however, HARQ re-transmissions are not scheduled persistently. In general, dynamic overhead calculation model for the Assignment A-MAP is considered, whereas other downlink control channels are modeled with a fixed overhead. In the uplink, DRU-based subchannelization was used to achieve frequency diversity. The SFBC mode with a 2 X 4 antenna configuration is further utilized. The MMSE receiver was simulated in the BS for both channel estimation and data detection. The chase combining HARQ with a re-transmission delay of four frames and up to four re-transmissions was used in the simulations. The primary fast- feedback channel is utilized for transmission of CQI feedback. Additionally, when wideband beam- forming is used, wideband PMI is also fed back using the primary fast-feedback channel. The control overhead due to the primary fast-feedback channel is assumed to be static according to the reporting period derived from the number of active users, voice activity factor, and the allocation interval for persistent scheduling. The overhead corresponding to the HARQ feedback channel assumes 30 ACK/ NACK in each subframe derived from the downlink system-level VoIP simulation for each test envi- ronment. To accommodate sounding for 16 users per frame when the system is operating at the maximum VoIP capacity, a fixed overhead of two OFDM symbols per frame is assumed for the sounding channel. A fixed overhead of two LRUs per frame is assumed for the initial ranging and bandwidth request channels. Uplink channel signaling errors were explicitly modeled in the VoIP simulations for both FDD and TDD modes. Persistent scheduling for individual VoIP connections was modeled, and the MAC procedure and dynamic control overhead based on the Persistent Allocation A-MAP IE for initial transmissions was modeled, as well. The HARQ re-transmissions are not scheduled persistently