| 摘要 |
PURPOSE:To attain processing of lots of data in high speed, by preparing N pieces of channels using a carrier having N pieces of different frequencies and applying the CSMA/CD system to them for improving the efficiency of buses. CONSTITUTION:The communication between nodes is wire tapped on channels CHO and CH1 at the start of data transmission in each communication node, a channel in noncommunication stae is selected and the transmission is started. If the nodes A and C start the transmission via the channel CHO at the same time incidentally and a collision takes place, it is detected and the transmission is stopped immediately and one of any channel in noncommunication state including the channel CHO is selected at random again after some time is elapsed for starting retransmission. As a result, a transmission burst A2 of the node A selects the channel CH1 again and a transmission burst C1 of the node C selects the channel CHO again for performing retransmission. |
