A network for cellular communication comprising a plurality of cellular receiver/transmitters, each one of which having a position, P, associated therewith and including a receiver for receiving a radio broadcast message in route to a destination, D, over a free frequency using time division multiple access (TDMA), and a transmitter for transmitting a message to another cellular receiver/transmitter, over a free frequency using time division multiple access (TDMA), a local positioning system for identifying other cellular receiver/transmitters positioned within a vicinity of P, and a router for determining a one of the identified other cellular receiver/transmitters that has a position, Q, that is closer to D than P is. A method and a computer-readable storage medium are also described and claimed.