Apparatus and method for providing relay service in broadband wireless access communication system

The present invention relates to an apparatus and method for providing a relay service in a broadband wireless access communication system. The communication method according to the invention, the step of determining a subcarrier allocation scheme, independently of each other for each of the entire frequency band of the process and, the divided band divided into a plurality of bands to support a plurality of links and a plurality the link of the each comprises the step of performing the communication in the subcarrier allocation scheme determined. This invention is a broadband wireless access communication when distinguish the direct link and the relay link from the system through a frequency multiplexing, by applying a dedicated pilot based permutation scheme for the relay link, the independent channel estimation for a relay link possible benefit there is. Multi-hop Broadband Wireless Access (BWA), a frame, only the pilot channel estimation, pilot overhead