Capacity bounds for certain channels with states and the energy harvesting channel

We study two types of channels in this paper: certain channels with states and energy harvesting channels. The first is based on Gallager´s finite state channel with input constraints and causal CSIT. The second deals with two different scenarios with regard to the availability of energy information at the transmitter. For both channels we derive new capacity bounds, mostly using bounding techniques of Verdú and Han and Gallager.