| 摘要 |
Data the destinations of which are a plurality of receiving apparatus can be transmitted efficiently. A sending apparatus (1) includes a storage section (1a), a control section (1b), and a sending section (1c). The storage section (1a) stores information which associates a first communication quality and a second communication quality with hierarchical modulation methods each using a plurality of channels. On the basis of the information stored in the storage section (1a), the control section (1b) selects a hierarchical modulation method corresponding to the first communication quality which is a communication quality for a receiving apparatus (2) and the second communication quality which is a communication quality for a receiving apparatus (3). The sending section (1c) maps data a destination of which is the receiving apparatus (2) and data a destination of which is the receiving apparatus (3) to the plurality of channels according to the hierarchical modulation method selected, and transmits the data. |
