The present invention relates to a transmission apparatus and reception apparatus for parallel data streams. The present specification discloses a wireless stream transmission apparatus comprising: an encoder for dividing an inputted picture into multiple areas and performing, for each area, encoding so as to generate a bitstream including a header and data; a DS generating unit for removing or modifying at least a portion of headers related to the multiple areas into compact headers, and combining, with the data, at least the remaining headers which have not been removed or the compact headers so as to generate a data stream for each area; and a communication unit for packing the data stream so as to generate a packet, and transmitting, on the basis of wireless communication, the packet to a wireless stream reception apparatus. By using modified headers in applications where real time is important, it is possible to reduce a traffic burden and satisfy low-latency requirements.