TRANSMITTING APPARATUS AND RECEIVING APPARATUS AND CONTROLLING METHOD THEREOF

摘要

A transmitting apparatus is disclosed. The transmitting apparatus comprises a structure part which generates a transmission stream formed with an OFDM symbol, and adds signaling data to a transmission stream; and a transmission part inserting a pilot into the OFDM symbol, determining the number of effective carriers having a spectrum corresponding to the OFDM symbol having the pilot inserted exist in a preset spectrum mask, and mapping the OFDM having the pilot inserted on the effective carriers of the determined number and transmitting the same. Accordingly, the data transmission rate can be increased by determining and using the number of usable effective carriers while not exceeding the spectrum mask.