Systems and methods for improving network performance. A method of transmitting packet data across a network includes a transmitting network device establishing a reservation to transmit traffic to a plurality of wireless receiving network devices across a network; the transmitting network device transmitting a sequence of packets across the network, wherein a packet of the sequence of packets includes data requesting the receivers acknowledge receipt of the packet; the transmitting network device waiting for a predetermined time to receive acknowledgement of receipt of the packet from the wireless receiving network devices; the transmitting network device retransmitting a packet across the network only if it does not receive an acknowledgement for that packet from any of the wireless receiving network devices within the predetermined time.