LT codes over Piecewise Stationary Channels

Speaker: Bertrand Ndzana Ndzana , Algo - EPFL


Many communication channels models explicitly allow for sudden changes in the channel state during a transmission period. An abruptly changing channel model may be used to describe any system that experiences sudden, and persistent, burs t of interference or degradation, such as a mobile wireless channel, an optical CDMA channel, or a military communication channel in the presence of jamming. In this talk, we present three LT codes based algorithms for estimation and increm ental decoding over piecewise memoryless stationary channels (PSMC) with a bound ed number of abrupt changes in channel statistics. In particular, as a class of PSMC, we consider binary symmetric channels with a crossover probability that ch anges a bounded number of times with no repetitions in the statistics.