Carolyn Mayer, WPI
Title: Partial Erasure Channels
Abstract: Partial erasure channels model situations in which some information may remain after an erasure event occurs. These types of erasure events can happen in applications such as flash memory storage. After reviewing recently introduced partial erasure channels, we present results in two directions. First, we show how multilevel coding and multistage decoding may be applied to break partial erasure channels into simpler subchannels. Second, we consider Luby Transform (LT) codes, a class of codes without fixed rates, over partial erasure channels. We present a modified decoding process for these codes and compare their efficiency with standard LT codes on the q-ary erasure channel.