FPGA Based Dual Carrier Modulation Soft Mapper and Demapper for the MB-OFDM UWB Platform

In this paper a Dual Carrier Modulation (DCM) soft mapper and demapper are presented, optimized toward the WiMedia consortium Ultra-Wide Band (UWB) radio platform (ECMA-368). The DCM demapper exploits a Channel-State-Information (CSI) aided scheme coupled with the band hopping information resulting in improved performance compared to previous systems. The proposed mapper and demapper are presented in the context of ECMA-368 as the chosen physical implementation for high data rate Wireless USB (W-USB) and Fast Bluetooth. Implementation aspects of the DCM soft mapper and demapper on Xilinx Field Programmable Gate Array (FPGA) are addressed.