An information processing device comprising: a display unit; a stream reception unit configured to receive a stream containing image information for output on the display unit from another information processing device (200, 400) by using wireless communication; a wireless communication unit configured to perform communication with the other information processing device to exchange capability information regarding the information processing device and capability information regarding the other information processing device, the wireless communication unit including a plurality of reception units (1011, 1012, 1013) arranged at different positions of the information processing device, wherein the plurality of reception units comprises two or more first reception units (1011, 1012) configured to perform reception using multi-reception diversity, according to which the two or more first reception units are used for reception in a first frequency channel, and a second reception unit configured to perform reception without using multi-reception diversity in a second frequency channel; and a control unit configured to perform control in a manner that multi-reception diversity of the stream received from the other information processing device is set based on the capability information regarding the other information processing device, wherein the capability information includes information indicating whether a multi-reception diversity function is included, and in a manner, if the capability information indicates that a multi-reception diversity function is included, that multi-reception diversity is used for reception of a high-quality video transmission of a high-quality video as a main image and multi-reception diversity is not used for reception of a standard quality video transmission of a standard quality video as a sub-image, the main image and the sub-image representing different display forms in which the image information is output on the display unit, the main image having a greater display area than the sub-image and/or having a larger resolution than the sub-image. a display unit; a stream reception unit configured to receive a stream containing image information for output on the display unit from another information processing device (200, 400) by using wireless communication; a wireless communication unit configured to perform communication with the other information processing device to exchange capability information regarding the information processing device and capability information regarding the other information processing device, the wireless communication unit including a plurality of reception units (1011, 1012, 1013) arranged at different positions of the information processing device, wherein the plurality of reception units comprises two or more first reception units (1011, 1012) configured to perform reception using multi-reception diversity, according to which the two or more first reception units are used for reception in a first frequency channel, and a second reception unit configured to perform reception without using multi-reception diversity in a second frequency channel; and a control unit configured to perform control in a manner that multi-reception diversity of the stream received from the other information processing device is set based on the capability information regarding the other information processing device, wherein the capability information includes information indicating whether a multi-reception diversity function is included, and in a manner, if the capability information indicates that a multi-reception diversity function is included, that multi-reception diversity is used for reception of a high-quality video transmission of a high-quality video as a main image and multi-reception diversity is not used for reception of a standard quality video transmission of a standard quality video as a sub-image, the main image and the sub-image representing different display forms in which the image information is output on the display unit, the main image having a greater display area than the sub-image and/or having a larger resolution than the sub-image.