FILTER-AND-FORWARD TRANSPARENT RELAY DESIGN METHOD FOR QOS MAXIMIZATION IN OFDM SYSTEMS

摘要

The present invention related to a filter-and-forward transmission relay design method for quality of service (QoS) in an orthogonal frequency division multiplexing (OFDM) system using multiple carriers. The filter-and-forward transmission relay design method extends a filter-and-forward transmission relay design structure to an OFDM system using the multiple carriers, executes a finite impulse response (FIR) filtering with an OFDM chip level without an OFDM signal process, maximizes the lowest signal-to-noise ratio among the multiple carriers, easily designs the transmission relay after amplification, and maintains low installation costs. The filter-and-forward transmission relay design method is provided in the OFDM system in which the QoS is improved in the receiver.