Space Link ARQ Procedure for Reliable, Robust Communications

Abstract

This program describes a protocol developed by the Consultive Committee for Space Data Systems (CCSDS) to be used for transfer of data across space-to-ground and space-to-space links. The CCSDS is a voluntary organization comprising most of the world's space agencies. The CCSDS develops recommendations for space data system standards which serve as guidelines for member space agencies to use in developing their own internal standards. Over the past few years, the CCSDS has developed recommendations applicable to Advanced Orbiting Systems (AOS), such as the U.S. Space Station Freedom and related space platforms and international space station elements. The Space Link ARQ Protocol (SLAP) described here was developed as part of the AOS program.