| 摘要 |
A method for controlling a transmission error using a buffering queue architecture in an USN(Ubiquitous Sensor Network) environment is provided to transmit image data through a zigbee transceiver and to transmit the video data by dividing the video data into a macro block unit. A light real time media transmission protocol for transferring media data with large capacity is provided in a USN network based on a zigbee. The light real time transmission protocol is comprised of a packet header including a field showing the number of a macro block of an image frame, the field showing a sequence number of the image frame, and a marker field for classifying the macro block which is not transmitted through one packet. A protocol converting device receives and converts the light real time media transmission protocol into a fixed real time transmission protocol. The protocol converting device includes a buffer storing a packet of a predetermined quantity and retransmits the packet in response to the retransmission request. |
