Abstract: A portable medical device comprises an omnidirectional antenna; a data interface configured to receive medical video data; and a controller configured to operate in a predetermined area of reception within a health care facility with respect to a transceiver and configured to use ultra wideband communications to transmit data to the transceiver at a rate greater than about 100 MB/s with a spectral power density below a predetermined level. The transceiver is configured to provide the predetermined area of reception using a high grain antenna and is configured to use ultra wideband communications to transmit data to the first transceiver at a rate less than about 100 MB/s with a spectral power density below the predetermined level.

Abstract: 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.