Data coding functions for Software Defined Radios implemented on R3TOS

This paper presents the implementation of several data coding functions used in Software Defined Radios, on R3TOS: a Reliable, Reconfigurable and Real-Time Operating System. The latter offers efficient high performance computing on FPGAs as well as protection against emerging faults, hence making it a perfect candidate for the implementation of SDRs. In particular, R3TOS' ICAP-based Inter-task Communication Infrastructure (I2CI) has been used for data feeding and collection from coding functions, while a task context saving and restoration procedure, and a fast function parameterization system have been developed in order to improve system performance. The design of the data coding functions has been carried out using Xilinx's rapid prototyping tool System Generator in order to ease their development.