Comparison of Various UEP Techniques for IRNSS Message Structure

This paper analyzes the message structure of Indian Regional Navigation Satellite System (IRNSS), which is independently constructed and operated in India. Based on this, we propose an IRNSS coded message structure that applies the Unequal Error Protection (UEP) scheme to be more error-free for specific data. We classify UEP techniques in a separated method and an integrated method depending on whether that specific data is processed in conjunction with other data or not. And we propose a separated UEP method and an integrated UEP method for IRNSS.