Digital Up and Down Converter in IEEE 802.16d

In this paper, we propose a programmable digital up and down converter (DUC and DDC) structure, which can be used in digital transmitters and receivers that meets IEEE 802.16d standard in wireless communication system. The structure is based on the idea of software radio technology and the theorem of multi-rate signal processing, we use SignalMaster40000lspsmquadc6713 (QC6713) to design the DDC and DUC which shift the centre frequency of the signal from baseband to digital IF and convert the sampling rate for the channel transmitter and receiver