A transmitting apparatus is provided for transmitting signals in a multi carrier system, in which pilot signals and data mapped on frequency carriers are transmitted in a transmission bandwidth, wherein a part of the transmission bandwidth is not used to transmit signals. The apparatus includes a pilot signal mapper for mapping pilot signals onto selected frequency carriers according to a pilot pattern that is adapted for a channel estimation in a corresponding receiving apparatus, the pilot pattern enabling a channel estimation for frequency carriers next to the part of the transmission bandwidth that is not used to transmit signals.