Implementing WiMAX signal detection using reconfigurable processor

An optimized and efficient WiMAX signal detection is proposed using reconfigurable processor, namely the Tensilica Xtensa Processor Core. In this paper, we considered a digital signal processing (DSP) implementation of initial synchronization scheme for time division duplex mode in IEEE 802.16e OFDMA downlink transmission. Taking advantage of distinctive features of WiMAX preamble structure, a custom instructions based on single instruction multiple data (SIMD) technique is deployed to accelerate the extensive calculation process involved. Consequently, numerical data profiling incorporating a number of processor architecture variants is compared in terms of numbers of clock cycles require and code size usage. As a result, this implementation reduces the cycle count by 43% and code size requirement by 46%.