Domain-specific reconfigurable array targeting discrete wavelet transform for system-on-chip applications

Domain-specific heterogeneous reconfigurable arrays are for one particular domain of applications, which provide high performance over generic field programmable gate arrays (FPGAs) .This paper introduces an embedded reconfigurable array that targets discrete wavelet transform (DWT). Reconfigurable architectures are highly suitable for complex algorithms which are part of changing standards like JPEG2000 etc. The proposed reconfigurable array is flexible to implement lifting and integer based different DWT algorithms. Two benchmark DWT algorithms are implemented on three different platforms (on proposed array, on conventional FPGAs and on hardwired cores) for performance evaluation. The performance based on power consumption, timing and area, shows considerable improvement of presented arrays over FPGAs.