A Multiuser FBMC Receiver Implementation for Asynchronous Frequency Division Multiple Access

Relaxed synchronization is considered essential for future generations of wireless networks in order to reduce signaling overhead. Filterbank Multicarrier (FBMC) modulation receivers may be implemented in the frequency domain as synchronization and equalization may be performed jointly. Furthermore it is demonstrated that FBMC exhibits better capacity than OFDM when frequency division multiple access with relaxed synchronization is considered. The FPGA implementation of a flexible multiuser FBMC receiver in this context is then described. Its complexity is finally analyzed. The proposed multiuser architecture complexity scales reasonably with the number of addressed users in parallel.