Reed-Solomon (RS) error-correcting codes are able to detect and correct errors in transmission and storage systems and are used in a wide variety of commercial applications, such as DVD, worldwide interoperability for microwave access (WiMAX), and Advanced Television Systems Committee (ATSC) standards. Measures and techniques for designing a self-checking RS encoder and decoder, able to detect and correct errors introduced in an encoder or decoder by the RS system, are presented in other publications [1,2].

The main contribution of this paper is a self-checking implementation of the arithmetic structures used in RS encoders, with no modification of the decoder architecture. This property enables the reusability of the design of complex digital systems, which makes it attractive to both academia and industry. Additionally, the authors discuss two main properties of the error-free decoder and the performance of the new system in terms of area and delay overhead.

Overall, this is a well-written paper that provides a self-checking RS encoder and decoder with the capability of detecting and correcting concurrent errors.