Rateless Codes with Optimum Intermediate Performance

—In this paper, we design several degree distributions for rateless codes with optimum intermediate packet recovery rates. In rateless coding, the employed degree distribution significantly affects the packet recovery rate. Each degree distribution is designed based on the number of message packets, k, and desired coding overhead, γ, which is the ratio of the number of received packets, n, to k, i.e., γ = n k . Previously designed degree distributions are tuned for full recovery of the entire source packets for γ’s slightly larger than 1, and as a consequence, they show very small packet recovery

• Type: Conference
• Year: 2009
• Where: GLOBECOM
• Authors: Ali Talari, Nazanin Rahnavard
• Keywords: Communications, Degree Distributions, GLOBECOM 2009, Intermediate Packet Recovery, Packet Recovery Rate