Algorithm selection and hardware implementation for channel equalization in MB-OFDM Based UWB communications for indoor WPAN applications

Easy channel equalization for OFDM based UWB communications is considered to be one of its major advantages. Due to the format of transmission, the channel affects the signal only at discrete frequencies, and hence single-tap equalization is usually deemed sufficient. In this paper the selection of an efficient algorithm for equalization and its implementation is reported for indoor WPAN applications based on the ECMA-368/9 standard. The observed deficiency of interpolation techniques is explained and alternative algorithms are suggested. The algorithm with the best tradeoff between performance and resource utilization (area etc) is implemented in Verilog and simulated in Cadence IUS for correctness with success.