Link Error Control and Network Route Selection

Military networks must deliver messages during periods of high noise. On a link basis, character reliability can be increased using decision feedback for error control. Two specific decision feedback schemes are described in detail. The improved reliabilities and the reduced capacities for information transfer are computed. A method is then given for determining the optimal message route between each origin and destination-that is, the route whose capacity is maximum such that the route character reliability is adequate. Using a typical military network as an example, and typical jamming noise, optimal routes are determined from a station to each of six stations. The routes thus chosen are compared with routes chosen by another criterion.