  Vehicle-to-Infrastructure (V2I) technology, combined with millimeter wave
(mmW) networks, may support high data rates for vehicular communication and
therefore provides a whole new set of services. However, in dense urban
environment, pedestrians or buildings cause strong blockage to the narrow beams
at mmW, severely deteriorating the transmission rate. In this work, we model
the downlink mmW V2I system as a simple erasure broadcast channel where the
erasure (blockage) event is considered as the state of the channel. While state
feedback can be obtained through protocols such as Automatic Repeat reQuest
(ARQ), we also assume that the current state can be estimated through the
location information shared by the communication peers. We evaluate, through an
information-theoretic approach, the achievable downlink rate in such a system.
Despite its highly theoretical nature, our result sheds light on how much the
location information can contribute to improve the downlink date rate, e.g., as
a function of the mobility (velocity) of the vehicles.
