Meteor burst broadcast systems with repeating scheme

It is known that the beyond-line-of-sight radio communication channel can be set probabilistically by a column of ionized particles generated when a meteor penetrates into the atmosphere. Numerous transmission control procedures have been reported for an efficient data transmission with this communication channel. Since this communication channel appears independently between two points, it is possible to transmit identical messages from several different locations to one station, thereby improving the receiving probability of a specific message. Because of this characteristic, the transmission time can be reduced by relay transmission of the message by the station successful in receiving the message to other stations. However, to date, little has been reported on relay systems of this type. The present paper proposes a relay system called the unconditional diffusion repeating broadcast scheme and analyzes its characteristics. In this system, the station successful in receiving a message unconditionally broadcasts it. In the case of typical numerical examples studied here, it is shown that the broadcasting time in which the probability of stations without reception is less than 1 percent can be reduced to about two-thirds when the number of receiving stations is 2. For more than two receiving stations, the reduction is even greater while the improvement effect is saturated when the number of stations is about 20. The situation worsens for more than 30 stations.