Co-design of Full-duplex RFIC and Resource Allocation Algorithms

Full-duplex (FD) wireless -simultaneous transmission and reception at the same frequency -is an emerging wireless duplexing scheme that has the potential to significantly improve wireless network performance [1-2]. However, the biggest challenge associated with FD wireless is the tremendous amount of self-interference (SI) on top of the desired signal. The SI has to be suppressed below the receiver noise floor through isolation and cancellation as filtering the SI is not an option. An integrated CMOS implementation imposes constraints that render SI cancellation (SIC) techniques proposed in prior discrete-componentbased implementations (e.g. [3]) nonviable. Moreover, to fully utilize the benefits of FD communication, wireless systems will require a careful redesign of both the physical layer and the medium access control (MAC) layer.