Matlab Implementation of a Tornado Forward Error Correction Code

This research discusses how the design of a tornado forward error correcting channel code (FEC) sends digital data stream profiles to the receiver. The complete design was based on the Tornado channel code, binary phase shift keying (BPSK) modulation on a Gaussian channel (AWGN). The communication link was simulated by using Matlab, which shows the theoretical systems efficiency. Then the data stream was input as data to be simulated communication systems using Matlab. The purpose of this paper is to introduce the audience to a simulation technique that has been successfully used to determine how well a FEC expected to work when transferring digital data streams. The goal is to use this data to show how FEC optimizes a digital data stream to gain a better digital communications systems. The results conclude by making comparisons of different possible styles for the Tornado FEC code

Designing a Good Low-Rate Sparse-Graph Code

International audienceThis paper deals with the design of low-rate sparse-graph codes, having a linear minimum distance d_{min} in the blocklength n. Its main contributions are: a) a necessary condition on a general family of sparse-graph codes with linear d_{min}; b) a justification of having degree-1 bits in the low-rate code structure; c) a new, efficient ensemble of low-rate sparse-graph codes with bits of degree 1, designed so that the necessary condition (a) is satisfied